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Atlas of Ordovician Life

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  • Atlas
    • Arthropoda
      • Ostracoda
        • Palaeocopida
          • Drepanella
            • Drepanella richardsonia
      • Trilobita
        • Phacopida
          • Calymenidae
            • Flexicalymene
              • Flexicalymene granulosa
              • Flexicalymene meeki
          • Cheiruridae
            • Ceraurus
              • Ceraurus milleranus
        • Asaphida
          • Asaphidae
            • Isotelus
              • Isotelus gigas
              • Isotelus maximus
          • Trinucleidae
            • Cryptolithus
              • Cryptolithus tesselatus
        • Lichida
          • Lichidae
            • Amphilichas
              • Amphilichas shideleri
          • Odontopleuridae
            • Acidaspis
              • Acidaspis cincinnatiensis
        • Ptychopariida
          • Olenidae
            • Triarthrus
              • Triarthrus beckii
    • Brachiopoda
      • Brachiopod Morphology
      • Craniata
        • Craniida
          • Craniidae
            • Petrocrania
              • Petrocrania scabiosa
            • Philhedra
              • Philhedra laelia
        • Craniopsida
          • Craniopsidae
            • Craniops
              • Craniops cincinnatiensis
      • Lingulata
        • Lingulida
          • Trematidae
            • Trematis
              • Trematis millepunctata
            • Schizocrania
              • Schizocrania filosa
          • Pseudolingulidae
            • Pseudolingula
      • Rhynchonellata
        • Orthida
          • Dalmanellidae
            • Dalmanella
              • Dalmanella emacerata
            • Cincinnetina
              • Cincinnetina meeki
              • Cincinnetina multisecta
          • Draboviidae
            • Pionodema
              • Pionodema bellula
          • Glyptorthidae
            • Glyptorthis
              • Glyptorthis insculpta
          • Heterorthidae
            • Heterorthina
              • Heterorthina fairmountensis
          • Plectorthidae
            • Hebertella
              • Hebertella alveata
              • Hebertella frankfortensis
              • Hebertella occidentalis
            • Plectorthis
              • Plectorthis fissicosta
              • Plectorthis plicatella
          • Platystrophiidae
            • Vinlandostrophia
              • Vinlandostrophia acutilirata
              • Vinlandostrophia annieana
              • Vinlandostrophia clarksvillensis
              • Vinlandostrophia colbiensis
              • Vinlandostrophia cypha
              • Vinlandostrophia hopensis
              • Vinlandostrophia laticosta
              • Vinlandostrophia moritura
              • Vinlandostrophia ponderosa
          • Plaesiomyidae
            • Austinella
              • Austinella scovillei
            • Plaesiomys
              • Plaesiomys subquadratus
            • Retrorsirostra
              • Retrorsirostra carleyi
        • Atrypida
          • Anazygidae
            • Catazyga
              • Catazyga headi
            • Zygospira
              • Zygospira cincinnatiensis
              • Zygospira kentuckiensis
              • Zygospira modesta
        • Rhynchonellida
          • Orthorhynchulidae
            • Orthorhynchula
              • Orthorhynchula linneyi
          • Rhynchotrematidae
            • Hiscobeccus
              • Hiscobeccus capax
            • Lepidocyclus
              • Lepidocyclus perlamellosum
            • Rhynchotrema
              • Rhynchotrema dentata
      • Strophomenata
        • Strophomenida
          • Strophomenidae
            • Strophomena
              • Strophomena concordensis
              • Strophomena nutans
              • Strophomena planoconvexa
              • Strophomena planumbona
              • Strophomena vetusta
            • Tetraphalerella
              • Tetraphalerella neglecta
            • Holtedahlina
              • Holtedahlina sulcata
        • Sowerbyellidae
          • Sowerbyella
            • Sowerbyella rugosa
          • Eochonetes
            • Eochonetes clarksvillensis
        • Rafinesquinidae
          • Rafinesquina
            • Rafinesquina alternata
            • Rafinesquina nasuta
            • Rafinesquina ponderosa
          • Leptaena
            • Leptaena richmondensis
    • Bryozoa
      • Bryozoan Vocabulary
      • Zooecial Aperture Shape
      • Stenolaemata
        • Cystoporata
          • Ceramoporella
            • Ceramoporella flabellata
          • Constellaria
            • Constellaria emaciata
            • Constellaria fischeri
            • Constellaria florida
            • Constellaria polystomella
            • Constellaria teres
          • Crepipora
          • Nicholsonella
        • Cryptostomata
          • Arthrostylus
          • Escharopora
            • Escharopora falciformis
            • Escharopora hilli
            • Escharopora maculata
            • Escharopora pavonia
          • Pachydictya
          • Paleschara
          • Ptilodictya
        • Cyclostomata
          • Corynotrypa
            • Corynotrypa delicatula
            • Corynotrypa inflata
          • Cuffeyella
            • Cuffeyella arachnoidea
        • Fenestrida
          • Fenestella
          • Chasmatopora
        • Trepostomatida
          • Aisenvergiidae
            • Eridotrypa
              • Eridotrypa aedilis
              • Eridotrypa briareus
          • Amplexoporidae
            • Amplexopora
              • Amplexopora robusta
              • Amplexopora septosa
            • Rhombotrypa
              • Rhombotrypa quadrata
              • Rhombotrypa subquadrata
          • Atactotoechidae
            • Cyphotrypa
              • Cyphotrypa clarksvillensis
              • Cyphotrypa frankfortensis
            • Leptotrypa
              • Leptotrypa minima
              • Leptotrypa ornata
          • Batostomellidae
            • Batostomella
              • Batostomella gracilis
            • Bythopora
              • Bythopora arctipora
              • Bythopora gracilis
              • Bythopora meeki
          • Halloporidae
            • Hallopora
              • Hallopora andrewsi
            • Parvohallopora
              • Parvohallopora dalei
              • Parvohallopora multitabulata
              • Parvohallopora onealli
              • Parvohallopora ramosa
              • Parvohallopora rugosa
              • Parvohallopora subnodosa
          • Heterotrypidae
            • Dekayia
              • Dekayia aspera
              • Dekayia ulrichi
            • Heterotrypa
              • Heterotrypa frondosa
              • Heterotrypa milleri
              • Heterotrypa parvulipora
              • Heterotrypa subfrondosa
              • Heterotrypa ulrichi
            • Petigopora
              • Stigmatella
                • Stigmatella dychei
          • Mesotrypidae
            • Atactoporella
              • Atactoporella newportensis
              • Atactoporella schucherti
              • Atactoporella typicalis
            • Homotrypa
              • Homotrypa bassleri
              • Homotrypa cincinnatiensis
              • Homotrypa dawsoni
              • Homotrypa flabellaris
              • Homotrypa hospitalis
              • Homotrypa norwoodi
              • Homotrypa obliqua
              • Homotrypa wortheni
            • Mesotrypa
              • Mesotrypa patella
            • Peronopora
              • Peronopora decipiens
              • Peronopora vera
          • Monticuliporidae
            • Aspidopora
              • Aspidopora eccentrica
              • Aspidopora newberryi
            • Monticulipora
              • Monticulipora mammulata
              • Monticulipora molesta
            • Prasopora
              • Prasopora falesi
              • Prasopora simulatrix
          • Trematoporidae
            • Batostoma
              • Batostoma jamesi
              • Batostoma varians
          • Unassigned genera
            • Monotrypella
            • Nicholsonella
            • Spatiopora
    • Cnidaria
      • Anthozoa
        • Rugosa
          • Streptelasmatidae
            • Grewingkia
              • Grewingkia canadensis
            • Streptelasma
              • Streptelasma divaricans
        • Tabulata
          • Billingsariidae
            • Foerstephyllum
              • Foerstephyllum vacuum
          • Coccoserididae
            • Protarea
              • Protarea richmondensis
          • Sryingophyllidae
            • Calapoecia
              • Calapoecia huronensis
      • Scyphozoa
        • Conulariida
          • Conulariidae
            • Conularia
              • Conularia formosa
    • Echinodermata
      • Crinoidea
        • Cladida
          • Dendrocrinidae
            • Plicodendrocrinus
              • Plicodendrocrinus casei
          • Merocrinidae
            • Merocrinus
              • Merocrinus curtus
        • Diplobathrida
          • Reteocrinidae
            • Gaurocrinus
              • Gaurocrinus nealli
        • Disparida
          • Heterocrinidae
            • Cincinnaticrinus
              • Cincinnaticrinus pentagonus
              • Cincinnaticrinus varibrachialis
          • Homocrinidae
            • Ectenocrinus
              • Ectenocrinus simplex
          • Iocrinidae
            • Iocrinus
              • Iocrinus subcrassus
        • Lichenocrinus
          • Lichenocrinus crateriformis
          • Lichenocrinus tuberculatus
        • Monobathrida
          • Glyptocrinidae
            • Glyptocrinus
              • Glyptocrinus decadactylus
              • Glyptocrinus fornshelli
            • Pycnocrinus
              • Pycnocrinus dyeri
          • Xenocrinidae
            • Xenocrinus
              • Xenocrinus baeri
      • Edrioasteroidea
        • Isorophida
          • Hemicystitidae
            • Carneyella
              • Carneyella pliea
              • Carneyella ulrichi
          • Isorophidae
            • Isorophus
              • Isorophus cincinnatiensis
      • Rhombifera
        • Dichoporita
          • Callocystitidae
            • Lepadocystis
              • Lepadocystis moorei
        • Glyptocystitida
          • Cheirocrinidae
            • Cheirocystis
              • Cheirocystis fultonensis
    • Hemichordata
      • Graptolithina
        • Graptoloidea
          • Diplograptidae
            • Arnheimograptus
              • Arnheimograptus anacanthus
            • Geniculograptus
              • Geniculograptus typicalis
        • Mastigograptida
          • Mastigograptidae
            • Mastigograptus
              • Mastigograptus tenuiramosus
    • Ichnofossils
      • Catellocaula
      • Chondrites
      • Cruziana
      • Diplichnites
      • Diplocraterion
      • Palaeophycus
      • Phycodes
      • Planolites
      • Rhabdoglyphus
      • Rusophycus
      • Trichophycus
      • Trypanites
    • Mollusca
      • Bivalvia
        • Actinodontida
          • Cycloconchidae
            • Cycloconcha
              • Cycloconcha milleri
        • Arcoida
          • Cyrtodontidae
            • Cyrtodonta
              • Cyrtodonta cuneata
            • Cyrtodontula
              • Cyrtodontula umbonata
        • Modiomorphida
          • Allodesmatidae
            • Ischyrodonta
              • Ischyrodonta elongata
          • Modiomorphidae
            • Corallidomus
              • Corallidomus concentricus
            • Cymatonota
              • Cymatonota typicalis
            • Modiolodon
            • Modiolopsis
              • Modiolopsis modiolaris
              • Modiolopsis versaillensis
            • Orthodesma
            • Whiteavesia
              • Whiteavesia cincinnatiensis
        • Nuculoida
          • Ctenodontidae
            • Ctenodonta
              • Ctenodonta perminuta
          • Malletiidae
            • Nuculites
          • Praenuculidae
            • Deceptrix
              • Deceptrix albertina
        • Pholadomyoida
          • Grammysiidae
            • Cuneamya
        • Pterioida
          • Ambonychiidae
            • Allonychia
              • Allonychia jamesi
            • Ambonychia
              • Ambonychia alata
              • Ambonychia radiata
              • Ambonychia robusta
            • Anomalodonta
              • Anomalodonta gigantea
            • Anoptera
              • Anoptera miseneri
        • Trigonoida
          • Lyrodesmatidae
            • Lyrodesma
              • Lyrodesma inornatum
              • Lyrodesma major
      • Gastropoda
        • Bellerophontida
          • Bellerophontidae
            • Bucania
              • Bucania simulatrix
            • Salpingostoma
              • Salpingostoma richmondensis
          • Sinuitidae
            • Sinuites
              • Sinuites cancellatus
        • Euomphalina
          • Holopeidae
            • Holopea
              • Holopea obliqua
          • Platyceratidae
            • Cyclonema
              • Cyclonema bilix
              • Cyclonema bilix lata
              • Cyclonema humerosum
              • Cyclonema inflatum
              • Cyclonema limatum
              • Cyclonema varicosum
              • Cyclonema simulans
        • Murchisoniina
          • Eotomariidae
            • Clathrospira
              • Clathrospira conica
              • Clathrospira subconica
            • Liospira
              • Liospira micula
              • Liospira vitruvia
          • Lophospiridae
            • Lophospira
              • Lophospira ampla
            • Paupospira
              • Paupospira bowdeni
          • Trochonematidae
            • Trochonema
              • Trochonema madisonense
      • Cephalopoda
        • Actinocerida
          • Armenoceratidae
            • Armenoceras
              • Armenoceras richmondensis
          • Gonioceratidae
            • Lambeoceras
              • Lambeoceras richmondense
        • Endocerida
          • Endoceratidae
            • Cameroceras
              • Cameroceras inaequabile
            • Endoceras
              • Endoceras proteiforme
        • Oncocerida
          • Oncoceratidae
            • Beloitoceras
              • Beloitoceras amoenum
              • Beloitoceras cumingsi
        • Orthocerida
          • Orthoceratidae
            • Pleurorthoceras
              • Pleurorthoceras clarksvillense
            • Richmondoceras
              • Richmondoceras brevicameratum
          • Proteoceratidae
            • Orthonybyoceras
              • Orthonybyoceras dyeri
            • Treptoceras
              • Treptoceras duseri
      • Tentaculita
        • Cornulitidae
          • Cornulites
            • Cornulites corragatus
        • Tentaculitidae
          • Tentaculites
            • Tentaculites richmondensis
      • Tergomya
        • Cyrtonellida
          • Cyrtolitidae
            • Cyrtolites
              • Cyrtolites ornatus
    • Porifera
      • Demospongia
        • Lithistida
          • Eospongiidae
            • Heterospongia
              • Heterospongia subramosa
      • Stromatoporoidea
        • Labechiida
          • Lophiostromatidae
            • Dermatostroma
  • Geology
    • Geologic Setting
    • Ordovician Outcrop Belt
    • Richmondian Invasion
  • Resources for Teachers
  • Fossil Collecting
  • Project Overview
    • Creating the Digital Atlas
  • Links
  • References
  • Site Index

Welcome!

Explore the diversity, systematics, biogeography, and stratigraphy of Late Ordovician fossils of the Cincinnati, Ohio region

Enter the Atlas

 

Outcrop at Maysville, KYKope through Bellevue strata, Maysville, KY

The Digital Atlas of Ancient Life Project

This Ordovician Atlas is part of a collaborative NSF-funded initiative to produce digital atlases for multiple intervals of Earth history.

Learn more here

Digital Atlas app now available!

Identify Ordovician (+ Pennsylvanian and Neogene) fossils without accessing wifi or mobile coverage with the our new free app for iPad and iPhone. The Digital Atlas app is now available or free download from the Apple App store.

Check it out here!

Search the Atlas

Index of Atlas Content

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Funding provided by the National Science Foundation (EF-1206750, EAR-0922067)

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