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February 3, 2011

Fossil Invertebrates Diversity

Image slideshow

Gallery

  • Brachiopoda - Rhynchonellata - Terebratulida   Magellania sp.Specimen P 28814 Patagonian beds Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Cystoporata   Ceramoporella ohioensisThis specimen is the holotype of Ceramopora concentrica which was later determined to be a synonym of Ceramoporella ohioensis.Specimen UC 233 Utica Shale Paleozoic - Middle Ordovician Cincinnati, Ohio

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Orthida   Diceromyonia storeyaSpecimen PE 11058 Upper Bighorn Formation - Rock Creek beds Paleozoic - Late Ordovician Johnson County, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Annelida - Polychaeta - Phyllodocida   Dryptoscolex matthiesaeSpecimen PE 12491 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echiura -(spoon worms)   Coprinoscolex ellogimusSpecimen PE 12964 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Problematica   Tullimonstrum gregarium Richardson 1966(Tully Monster)Specimen PE 13867 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Nematoda -(ribbon worms)   Nemavermes mackeeiSpecimen PE 21551 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Annelida - Polychaeta - Eunicida   Esconites zelusSpecimen PE 22881 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Annelida - Polychaeta - Phyllodocida   Rutellifrons wolfforumSpecimen PE 22898 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Sipunculoida - (peanut worms)   Lecthaylus gregariusSpecimen PE 31533-2  Racine Formation - Lecthaylus Shale Paleozoic - Silurian - Niagaran(~420 million years ago) Chicago area, Illinois

    Photographer(s): P. Mayer (c) (c) Unspecified

  • Echiura -(spoon worms)   Coprinoscolex ellogimusSpecimen PE 32583 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian (~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Annelida - Polychaeta - Phyllodocemorpha(bristle worms)   Levisettius sp.Specimen PE 33384 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years old) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Tabulata   Michelinia favosoidea(honeycomb coral)Specimen UC 12913 Onondaga FormationPaleozoic - Middle Devonian Port Colborne, Ontario, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Porifera - Hexactinellida - Reticulosa(glass sponge)   Hydnoceras hypastrumSpecimen UC 13154 Chemung Group Paleozoic - Late Devonian Steuben County, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Porifera - Hexactinellida - Reticulosa(glass sponge)   Hydnoceras  AvocaSpecimen UC 14399 (holotype)  Chemung Group Paleozoic - Late Devonian Avoca, Steuben County, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Fenestrida   Polypora cultellata    Previously Fenestella cultellata (syntype)Specimen UC 14016 Jeffersonville Limestone Paleozoic - Middle Devonian Falls of the Ohio, Indiana & Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Cystoporata   Constellaria floridaSpecimen UC 17494 Fairview Formation - Mt. Hope Member Paleozoic - Late Ordovician Covington, Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Trepostomida   Batostoma minnesotenseSpecimen UC 17503 Decorah Formation - Rhinidictya beds Paleozoic - Late Ordovician Minneapolis, Minnesota

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Porifera - Hexactinellida - Reticulosa(glass sponges)   Uphantaenia chemungensisSpecimen UC 18696 Chemung Group Paleozoic - Late Devonian Owego, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Rugosa    Pachyphyllum woodmaniSpecimen UC 26016 Lime Creek Formation Paleozoic - Late Devonian Hackberry Grove, Iowa

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Fenestrata   Archimedes symmetricus(corkscrew bryozoan)Specimen UC 28227 Paint Creek Limestone Paleozoic - Mississippian Princeton, Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Rugosa   Prismatophyllum percarinatumSpecimen UC 38750 Paleozoic - Middle Devonian Emmet County, Michigan

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Rhynchonellida   Hiscobeccus capaxPreviously (Lepidocyclus capax)                     (Atrypa capax)Specimen PE 16568 Tanner's Creek Formation Paleozoic - Late Ordovician Abington, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Pentamerida   Pentamerus oblongusSpecimen PE 53958-A Red Mountain Formation Paleozoic - Silurian Jefferson County, Alabama

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Spiriferida   Imbrexia incertus    Previously Spirifer incertusSpecimen UC 8620 Burlington Limestone Paleozoic - Mississippian Burlington, Iowa

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Orthida   Dinorthis occidentalis   Previously Plaesiomys occidentalisSpecimen UC 11047 Upper Bighorn Formation - Rock Creek beds Paleozoic - Late Ordovician Johnson County, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Pentamerida   Kirkidium laqueatum     Previously (Conchidium laqueatum)Specimen UC 12329 Paleozoic - Silurian -Niagaran (~420 million years ago) Delphi, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Pentamerida   Pentamerus oblongusSpecimen UC 13212 Paleozoic - Silurian - Niagaran(~420 million years ago) Northern Indiana?

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Spiriferida Anthracospirifer bifurcatus    Previously (Spirifer bifurcatus)Specimen UC 13520 St. Louis Group Paleozoic - Mississippian New Providence, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Strophomenata - Productida   Echinoconchus alternata    Previously (Pustula alternata)Specimen UC 14318 Keokuk Formation Paleozoic - Mississippian Warsaw, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Strophomenata - Strophomenida   Rafinesquina alternataSpecimen UC 29379 Paleozoic - Late Ordovician(~450 Million years ago) Minooka, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Myriapoda - Arthropleuridea   Arthropleura cristataSpecimen PE 5262 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Myriapoda - Diploda(millipedes)   Hexecontasoma carinatumSpecimen PE 23487 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Myriapoda - Diploda - Euphoberiida(millipedes)   Acantherpestes majorSpecimen PE 25432 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Onychophora -(velvet worms)   Helenodora inopinataSpecimen PE 29049 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Blattodea(cockroaches)   Adeloblatta columbianaSpecimen PE Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Blattodea(cockroaches)   Adeloblatta columbiana    previously Progonoblattina columbianaSpecimen UC 6388 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Euthycarcinoidea - Euthycarcinoida(extinct group)   Kottixerxes gloriosusSpecimen PE 27874 Carbondale Formation - Francis Creek Shale Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Protorthoptera    Eucaenus mazonusSpecimen UC 9243 Carbondale Formation - Francis Creek Shale Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Spiriferida   Paraspirifer bownockeri    previously Spirifer bownockeriSpecimen UC 36158 (topotype) Silica Shale Paleozoic - Middle Devonian Silica, Ohio

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Orthida   Onniella meekiSpecimen UC 16542 Tanner's Creek Formation Paleozoic - Upper Ordovician Brookfield, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -(snails)   Platystomata turbinataSpecimen UC 11758 (cotype) Onondaga Limestone Paleozoic - Middle Devonian Onondaga County, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -(snails)   Platystoma turbinataSpecimen UC 11757 Onondaga Limestone Paleozoic - Middle Devonian Onondaga County, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Euthycarcinoidea - Euthycarcinoida   Kottixerxes gloriosusSpecimen PE 27873 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda -Myriapoda - Chilopoda(centipedes)   Mazoscolopendra richardsoniSpecimen PE 29002 (paratype) Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda -Myriapoda -Diplopoda(millipedes)   Pleurojulus sp.Specimen PE 32282 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Xiphosurida   Euproops danaeSpecimen P 29181 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Media for Mazon Creek Fossil Invertebrates

    Photographer(s): Unspecified (c) (c) Unspecified

  • Arthropoda - Myriapoda -Diplopoda   Eileticus aequalisSpecimen PE 789 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Crustacea -Malacostraca   Kallidecthes richiardsoniSpecimen PE 9771 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Crustacea - Malacostraca   Mamayocaris jaskowskiiSpecimen PE 25499 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Crustacea - Malacostraca   Tyrannophontes theridion(mantis shrimp)Specimen PE 25507 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Ptychopariida   Elrathia kingiiSpecimen PE 25610   Paleozoic - Middle Cambrian Wheeler Formation Millard County, Utah

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Ptychopariida   Elrathia kingiiSpecimen PE 25610   Paleozoic - Middle Cambrian Wheeler Formation Millard County, Utah

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Diacalymene claviculaSpecimen PE 25639 Hunton Group - Henryhouse Formation Paleozoic - Silurian Ada, Oklahoma

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Eurypterida   Adelophthalmus mazonensisSpecimen PE 32377 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Eurypterida   Adelophthalmus mazonensisSpecimen PE 32378 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Crustacea - Malacostraca   Belotelson sp.Specimen PE 34275 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Crustacea - Malacostraca   Palaeocaris typusSpecimen PE 37976 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Calymene celebraSpecimen PE 39218 Racine Formation Paleozoic - Silurian Milwaukee, Wisconsin

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Calymene celebraSpecimen PE 39218 Racine Formation Paleozoic - Silurian Milwaukee, Wisconsin

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Palaeodictyoptera   Eubleptus danielsiSpecimen PE 40223 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Arachnida    Triangulotarbus terrehautensisSpecimen PE 40269 Lower Shelburn Foramtion - Sandy Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Terre Haute, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Dalmanites limuloidesSpecimen PE 56128 Rochester Shale Paleozoic - Silurian - Wenlockian Lockport, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Greenops boothiSpecimen PE 56147 Ludlowville Formation - Ledyard Shale Member - Alden Pyrite Bed Paleozoic - Middle Devonian - Givetian Alden, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Greenops stelliferSpecimen PE 56151 Hamar Laghdad Formation Paleozoic - Early Devonian Southeast of Erfoud, Morocco

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Diptera - Bibionidae   Plecia pealei(march fly)Specimen PE 60929 Green River Formation - Fossil Butte Member Cenozoic - Paleogene - Eocene Kemmerer, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Hymenoptera(ants, bees, wasps)   unidentified hymenopteridSpecimen PE 60938 Green River Formation - Fossil Butte Member Cenozoic - Paleogene - Eocene Kemmerer, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Insecta - Diptera   unidentified tipulid(crane fly)Specimen PE 60946 Green River Formation - Fossil Butte Member Cenozoic - Paleogene - Eocene Kemmerer, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda -  Chelicerata - Arachnida   Kustarachne sulcataSpecimen UC 9235 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Eurypterida   Carcinosoma newliniPreviously Eusarcus newliniSpecimen UC 12900 Kokomo Dolomite Silurian(~418 million years ago) Kokomo, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Eurypterida   Carcinosoma newliniPreviously Eusarcus newliniSpecimen UC 12901 Kokomo Dolomite Silurian(~418 million years ago) Kokomo, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Chelicerata - Eurypterida   Carcinosoma newliniPreviously Eusarcus newliniSpecimen UC 12900 (plesiotypes) Kokomo Dolomite Silurian(~418 million years ago) Kokomo, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Dinocaridida - Radiodonta  Anomalocaris sp.Previously Peytonia nathorstiOriginally thought to be a jellyfish now is known to be the mouthpart of Anomalocaris.Specimen UC 24020 Stephen Formation - Burgess Shale Member Paleozoic - Middle Cambrian British Columbia, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Annelida - Polychaeta - Canadia spinosaSpecimen UC 24026 Stephen Formation - Burgess Shale Member Paleozoic - Middle Cambrian British Columbia, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Asaphida Thysanopyge argentina Specimen PE 6164 Paleozoic - Ordovician Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Asaphida   Ogygites canadensisSpecimen PE 25586 Collingswood Formation Paleozoic - Ordovician Collingswood, Ontario, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Asaphida   Ogygites canadensisSpecimen PE 25586 Collingswood Formation Paleozoic - Ordovician Collingswood, Ontario, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Asaphida   Pseudogygites latimarginatusSpecimen PE 56130 Lower Whitby Formation Paleozoic - Late Ordovician Ontario, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Diploporita -   Triamara tumidaSpecimen P 8424 Paleozoic - Silurian Romeo, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Acroechinoidea - Spatangoida   Linthia variabilisSpecimen P 10458 Ripley Group Mesozoic - Cretaceous Pontotoc, Mississippi

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Phacopida   Phacops handwerkiSpecimen PE 10xx9 Racine Formation Paleozoic - Silurian -Niagaran Lemont, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Holothuroidea - Apodida - Achistridae   Achistrum sp.Specimen PE 20866 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 Million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Echinoidea - Camarodonta   Isechinus praecursorSpecimen PE 22297-B Patagonian beds Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Edrioasteroidea - Savagella illinoisensis Specimen PE 25563 Orchard Creek Formation Paleozoic - Late Ordovician Thebes, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Asteroidea - Ambuloasteroidea   Compsaster formosusSpecimen PE 28991 Renault Formation Paleozoic - Mississippian Waterloo, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Asteroidea - Ambuloasteroidea(starfish or sea stars)   Compsaster formosusSpecimen PE 28996 Renault Formation Paleozoic - Mississippian Waterloo, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Agnostida   Peronopsis interstrictaSpecimen PE agnostid Wheeler Formation Paleozoic - Middle Cambrian Millard County, Utah

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Arthropoda - Trilobita - Agnostida   Peronopsis interstrictaSpecimen PE agnostid Wheeler Formation Paleozoic - Middle Cambrian Millard County, Utah

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Asteroidea -   Petraster americanusSpecimen UC 2465 Cincinnatian Group Paleozoic - Late Ordovician Cincinnati, Ohio

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Diploporita -    Triamara tumidaPreviously described as Holocystites adipatusas (holotype)Specimen UC 6020 Osgood Formation ?? Paleozoic - Silurian - Niagaran Jefferson County, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Rhombifera -   Caryocrinites indianensisSpecimen UC 6028   Paleozoic - Silurian - Niagaran Jefferson County, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Blastoidea - Fissiculata   Orophocrinus stelliformisSpecimen UC 6366 Burlington Formation Paleozoic - Mississippian Burlington, Iowa

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Edrioasteroidea - Isorophida   Agelacrinites pulaskensisSpecimen UC 6419 Paleozoic - Late Ordovician Pulaski County, Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Echinoidea - Palaechinoida   Oligoporus sulcatusSpecimen UC 6623 St. Louis Limestone Paleozoic - Mississippian Harding County, Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Edrioasteroidea -Isorophida   Carneyella pilea Specimen UC 8825 Maysville Formation Paleozoic - Late Ordovician Cincinnati, Ohio

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Blastoidea -   Elaeacrinus verneuiliSpecimen UC 9956 Onondaga Formation Paleozoic - Middle Devonian Jeffersonville, Indiana(Falls of the Ohio)

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Diploporita -   Holocystites alternatusSpecimen UC 18061 Osgood Formation ?? Paleozoic - Silurian - Niagaran Jefferson County, Indiana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Diploporita   Gomphocystites bownockeriSpecimen UC 22943 Racine Formation ?? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Blastoidea - Spiraculata   Pentremites nodosusSpecimen UC 25150 Lower Okaw (Golconda Limestone) Paleozoic - Mississippian Marigold, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Blastoidea - Spiraculata   Pentremites godoniSpecimen UC 25351 Paint Creek Shale Paleozoic - Mississippian Horaville, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Echinoidea - Archaeocidaridae   Nortonechinus welleriSpecimen UC 34711 Lime Creek Formation Paleozoic - Late Devonian Rockford, Iowa

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Edrioasteroidea -Isorophida   Carneyella pileaSpecimen UC 54070 Paleozoic - Late Ordovician Cincinnati, Ohio

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -   Platystoma ShumardiSpecimen P 20623 Jeffersonville Limestone ??? Paleozoic - Middle Devonian Falls of the Ohio, Indiana & Kentucky

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Arcoida   Glycymerita camaronesiaSpecimen P 28796 Patagonian beds Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -Neogastropoda - Muricidae   Purpura chicoanaSpecimen P 28798 Patagonian beds Cenozoic - Paleogene - Eocene Punta Casamayor, Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -Neogastropoda - Muricidae   Purpura chicoanaSpecimen P 28798 Patagonian beds Cenozoic - Paleogene - Eocene Punta Casamayor, Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Murchisoniina - Hormotomidae   Hormotoma rotundivolvisSpecimen P 28842 Paleozoic - Late Ordovician - Richmondian Frobisher Bay, Baffin Island, Nunavut, Canada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Pholadomyoida - Edmondiidae     Edmondia aspinwallensisSpecimen PE 22318 Carbondale Formation, Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Arcoida - Cucullaeidae   Cucullaea marshalliSpecimen PE 28809 Patagonian beds Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Pholadomyoida - Edmondiidae   Edmondia sp.Specimen PE 35631 Carbondale Formation, Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Sorbeoconcha - Turritellidae   Turritella etiwanensisSpecimen PE 56825 Cenozoic - Paleogene - Eocene Florida

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Pholadomyoida - Edmondiidae   Edmondia sp.Specimen PE 56926 Above Croweburg Coal Paleozoic - Middle Pennsylvanian Windsor, Missouri

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda -   Goniobasis sp.Specimen PE 60131 Green River Formation - Fossil Butte Member Cenozoic - Paleogene - Eocene Kemmerer, Wyoming

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia - Arcoida - Cucullaeidae   Cucullaea marshalliSpecimen PE 288096-C Jaliense Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Ceratitida - Ceratitidae   Ceratites hersheyiSpecimen PE Mesozoic - Middle Triassic - C. trinodosus Zone Fossil Hill, West Humboldt Range, Nevada

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina   Poleumita? discoideaSpecimen UC 2879 (holotype) Guelph Formation Paleozoic - Silurian Thornton, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Platyceratidae   Platyceras niagarensisSpecimen UC 4655 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Ammonoidea - Scaphitidae   Rhaeboceras halli   Previously named Ammonites opalus (type)Specimen UC 6377 Mesozoic - Cretaceous Great Bend of the Missouri River, Montana

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Goniatitida - Prodromitidae   Prodromites gorbyiSpecimen UC 6474 Chouteau Limestone Paleozoic - Mississippian Pettis County, Missouri

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Goniatitida - Prodromitidae   Prodromites gorbyiSpecimen UC 6474 Chouteau Limestone Paleozoic - Mississippian Pettis County, Missouri

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Cyrtoneritimorpha - Orthonychiidae   Igoceras fissurellaSpecimen UC 6929 Keokuk Group Paleozoic - Mississippian Warsaw, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Neritopsina - Naticopsidae   Naticopsis giganteusSpecimen UC 10526 Paleozoic - Pennsylvanian Alton, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Platyceratidae   Platyceras erectumSpecimen UC 11761 Hamilton Group Paleozoic - Middle Devonian Geneseo, New York

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Euomphalidae   Straparollus magnusSpecimen UC 18104 (holotype) Guelph Formation Paleozoic - Silurian Hawthorne, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Murchisoniina - Lophospiridae   Worthenia tabulataSpecimen UC 23068 Gunsight Shale(Gunsight Limestone of the Cisco Group??) Paleozoic - Late Pennsylvanian Gunsight, Texas

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Platyceratidae   Strophostylus allaniSpecimen UC 27509 Little Saline Limestone Paleozoic - Mississippian Little Saline Creek, Missouri

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Echinodermata - Crinoidea - Diplobathrida   Lampterocrinus? sp.Specimen P 8866 Racine Formation? Paleozoic - Silurian - Niagaran(~420 million years ago) Romeo, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Euomphalidae     Euomphalus sp.Specimen PE 2924 Racine Foramtion? Paleozoic - Silurian - Niagaran Chicago?, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Gastropoda - Euomphalina - Euomphalidae   Poleumita sp.Specimen PE 4336 Racine -  Port Byron formations Paleozoic - Silurian - Niagaran Thornton, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Goniatitida - Wiedeyoceratidae   Wiedeyoceras sp.Specimen PE 11157 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Bactritida - Bactritidae   Bactrites sp.Specimen PE 25584 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Hydrozoa - Hydroida   Mazohydra sp.Specimen PE 32074 Carbondale Formation - Francis Creek Shale Member Paleozoic - Middle Pennsylvanian(~305 million years ago) Mazon Creek Area, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Nautiloidea   Kionoceras cancellatumSpecimen UC 18124 Port Byron Formation Paleozoic - Silurian - Niagaran Bridgeport, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia -   Amphicoelia neglectaSpecimen UC 21873 Racine Formation? Paleozoic - Silurian - Niagaran Bridgeport, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Bivalvia -   Amphicoelia neglectaSpecimen UC 21873 Racine Formation? Paleozoic - Silurian - Niagaran Bridgeport, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Favositida - Favositidae   Favosites hisingeriSpecimen P 478 Racine Formation? Paleozoic - Silurian - Niagaran Hawthorne, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Strophomenata - Orthotetida - Chilidiopsidae   Coolinia subplanaPreviously named: Orthothetes subplanusSpecimen P 5097 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Brachiopoda - Rhynchonellata - Pentamerida - Pentameridae   Kirkidium knightiPreviously identified as Conchidium sp.Specimen P 16393 Racine Formation? Paleozoic - Silurian - Niagaran Thornton, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Rugosa - Stauriida - Acervulariidae   Diplophyllum caespitosum   Previously Diphyphyllum caespitosumSpecimen P 459 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Favositida - Favositidae   Favosites hisingeriSpecimen P 478 Racine Formation? Paleozoic - Silurian - Niagaran Hawthorne, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Favositida - Favositidae   Favosites niagarensisSpecimen P 5049 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Heliolitida - Halysitidae   Halysites catenulariusSpecimen P 8596 Racine Formation? Paleozoic - Silurian - Niagaran Bellwood, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Rugosa - Stauriida - Acervulariidae   Diplophyllum caespitosum   Previously Diphyphyllum caespitosumSpecimen P 21106 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Mollusca - Cephalopoda - Orthocerida - Dawsonoceratidae   Dawsonoceras annulatumSpecimen P 754 Racine Formation Paleozoic - Silurian - Niagaran Chicgao, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Bryozoa - Stenolaemata - Fenestrata   Ptiloporella sp.Specimen PE 412 Racine Formation - Port Byron formations Paleozoic - Silurian - Niagaran Thornton, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

  • Cnidaria - Anthozoa - Favositida - Pachyporidae Coenites reticulata Previously Cladopora reticulata Specimen UC 2783 Racine Formation? Paleozoic - Silurian - Niagaran Chicago, Illinois

    Photographer(s): P. S. Mayer (c) (c) Unspecified

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Brachiopoda - Rhynchonellata - Terebratulida   Magellania sp.Specimen P 28814 Patagonian beds Cenozoic - Paleogene - Eocene Santa Cruz, Argentina

Photographer(s):P. S. Mayer(c) (c) Unspecified