PBDB Collection

Ewekoro Quarry (Paleocene of Nigeria)

Where: Nigeria (6.9° N, 3.2° E: paleocoordinates 1.3° S, 3.5° W)

• outcrop-level geographic resolution

When: Globorotalia pusilla pusilla-Morozovella angulata - lower Globorotalia pseudomenardii foram zone, Ewekoro Formation, Selandian (61.6 - 59.2 Ma)

• Globorotalia pusilla pusilla-Morozovella angulata zone and lower part of the Globorotalia pseudomenardii zone (Petters & Olsson, 1979). Overlain by the AKINBO Formation unconformably.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, gray packstone

• The fossil content, which includes several shallow water and littoral taxa, e.g. neritids (Velates nigeriensis, new species), the worn nature of the bioclastic fragments and their good sorting indicate accumulation under a high-energy, littoral to shallow-shelf condition. The overlying unit also contains rounded grains, sorting, channel-fills, and crossbeds, further supporting an open shallow subtidal.

• Coquinoidal limestone, sandy at the base (light brown to gray sandy biomicrosparite limestone with few bioclastic fragments), shelly in the middle (massive gray limestone with abundant shells, echinoids and corals, and little terrigenous matter; coarse-grained and recrystallized) and sparry at the top (algal biosparite with few fosils. Channel-fills and high-energy crossbedded units are locally common). The middle and main fossiliferous unit is a shelly biomicrite, a light brownish-gray bioclastic limestone. Many of the shells were broken or heavily abraded prior to deposition. The matrix is micrite and contains only a small amount of terrigenous material. Quartz grains are generally present in small quantities though occasional sandy pockets are encountered.

Size classes: macrofossils, mesofossils

Preservation: replaced with calcite

Primary reference: O. S. Adegoke. 1977. Stratigraphy and Paleontology of the Ewekoro Formation (Paleocene) of Southwestern Nigeria. Bulletins of American Paleontology 71(295):1-379 [L. Ivany/E. Kowalski]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 7791: authorized by Linda Ivany, entered by Elizabeth Kowalski on 02.06.2000, edited by Matthew Clapham and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• Several of the families are new.

Show authors, comments, and common names

Anthozoa
Scleractinia - Turbinoliidae	Conocyathus togoensis, Conocyathus daniae n. sp., Conocyathus (Chingchingocyathus) ireneae n. sp. Conocyathus togoensis Oppenheim 1915 stony coral Conocyathus daniae n. sp. Ogbe 1976 stony coral Conocyathus (Chingchingocyathus) ireneae n. sp. Ogbe 1976 stony coral
Scleractinia - Caryophylliidae	Tiarasmilia sp. Tiarasmilia sp. Wells 1932 stony coral
Scleractinia - Stylinidae	? Stylina sp. ? Stylina sp. Lamarck 1816 stony coral
Scleractinia - Cladophylliidae	"Schizosmilia sp." = Cladophyllia "Schizosmilia sp." = Cladophyllia Milne-Edwards and Haime 1851 stony coral
Scleractinia - Astrocoeniidae	Adegokeastrea ewekoroensis n. gen. n. sp. Adegokeastrea ewekoroensis n. gen. n. sp. Ogbe 1976 stony coral
Echinoidea
Clypeasteroida - Fibulariidae	Togocyamus seefriedi Togocyamus seefriedi sand dollar
Cassiduloida - Cassidulidae	Cassidulus kieri n. sp. Cassidulus kieri n. sp. sea urchin
Spatangoida - Hemiasteridae	Hemiasteridae indet. Hemiasteridae indet. Clark 1917 heart urchin
Calycina - Phymosomatidae	Thylechinus (Thylechinus) tessieri n. sp. Thylechinus (Thylechinus) tessieri n. sp. sea urchin
Crinoidea
-	Crinoidea indet. Crinoidea indet. Miller 1821 Sea lily
Chondrichthyes
Lamniformes - Odontaspididae	Odontaspis sp. Odontaspis sp. Agassiz 1838 sand tiger shark
Myliobatiformes - Myliobatidae	Rhinoptera sp., Myliobatis sp. Rhinoptera sp. Cuvier 1829 cownose ray Myliobatis sp. Cuvier 1816 eagle ray
Cephalopoda
Nautilida - Hercoglossidae	Cimomia (Afrocimomia) ewekoroensis n. sp., Cimomia ogbei n. sp., Cimomia reymenti n. sp., Cimomia milleri n. sp., Cimomia dessauvagiei n. sp., Deltoidonautilus togoensis Cimomia (Afrocimomia) ewekoroensis n. sp. Adegoke 1977 nautiloid Cimomia ogbei n. sp. Adegoke 1977 nautiloid Cimomia reymenti n. sp. Adegoke 1977 nautiloid Cimomia milleri n. sp. Adegoke 1977 nautiloid Cimomia dessauvagiei n. sp. Adegoke 1977 nautiloid Deltoidonautilus togoensis Miller 1951 nautiloid
Gastropoda
Seguenzioidea - Eucyclidae	Mirachelus adeyemoi n. sp. Mirachelus adeyemoi n. sp. snail
Trochoidea - Solariellidae	Solariella adedayoi n. sp. Solariella adedayoi n. sp. snail
Trochoidea - Trochidae	Tectus africanus n. sp., Norrisia (Norisella) cf. aurilitoralis Tectus africanus n. sp. top snail Norrisia (Norisella) cf. aurilitoralis top snail
Trochoidea - Turbinidae	Afrollonia angustiumbilicata n. sp., Afrollonia nigeriensis n. gen. n. sp., Afrollonia togoensis n. sp. Afrollonia angustiumbilicata n. sp. Adegoke 1977 snail Afrollonia nigeriensis n. gen. n. sp. Adegoke 1977 snail Afrollonia togoensis n. sp. Adegoke 1977 snail
Lepetellida - Fissurellidae	Fissurella migeriensis n. sp. Fissurella migeriensis n. sp. snail
Opisthobranchia - Cylichnidae	Cylichna makanjuolai n. sp. Cylichna makanjuolai n. sp. Adegoke 1977 snail
Neritoidea - Neritidae	Velates nigeriensis n. sp. Velates nigeriensis n. sp. snail
Heterostropha - Architectonicidae	Pseudomalaxis (Nigerialaxis) parisot, Pseudomalaxis (Nigerialaxis) sp., Pseudomalaxis (Nigerialaxis) kayodei n. sp., Pseudomalaxis (Nigerialaxis) fayosei n. sp., Pseudomalaxis (Nigerialaxis) africana n. sp., Pseudomalaxis (Platylaxis) nigeriensis n. sp., Pseudomalaxis (Ewekorolaxis) ewekoroensis n. sp., Architectonica sp., Architectonica nigeriensis n. sp., Architectonica asseezi n. sp. Pseudomalaxis (Nigerialaxis) parisot snail Pseudomalaxis (Nigerialaxis) sp. Adegoke 1977 snail sp. A Pseudomalaxis (Nigerialaxis) kayodei n. sp. Adegoke 1977 snail Pseudomalaxis (Nigerialaxis) fayosei n. sp. Adegoke 1977 snail Pseudomalaxis (Nigerialaxis) africana n. sp. Adegoke 1977 snail Pseudomalaxis (Platylaxis) nigeriensis n. sp. Adegoke 1977 snail Pseudomalaxis (Ewekorolaxis) ewekoroensis n. sp. Adegoke 1977 snail Architectonica sp. Röding 1798 sundial Architectonica nigeriensis n. sp. Adegoke 1977 sundial Architectonica asseezi n. sp. Adegoke 1977 sundial
Heterostropha - Pyramidellidae	Syrnola isiakae n. sp., Odostomia nigeriensis n. sp., Odostomia (Ravnostomia) rosenkrantzi n. sp. Syrnola isiakae n. sp. Adegoke 1977 snail Odostomia nigeriensis n. sp. Adegoke 1977 snail Odostomia (Ravnostomia) rosenkrantzi n. sp. Adegoke 1977 snail
Heterostropha - Acteonidae	"Tornatellaea (Ravniella) africana" = Tornatellaea africana "Tornatellaea (Ravniella) africana" = Tornatellaea africana Furon 1948 snail
Architaenioglossa - Ampullinidae	Ampullina tapina, Globularia guineensis n. sp. Ampullina tapina Vincent 1972 snail Ampullina tapina kogbei Globularia guineensis n. sp. Adegoke 1977 snail
Neotaenioglossa - Calyptraeidae	Calyptraea ewekoroensis n. sp., Calyptraea nigeriensis n. sp. Calyptraea ewekoroensis n. sp. Adegoke 1977 slipper shell Calyptraea nigeriensis n. sp. Adegoke 1977 slipper shell
Sorbeoconcha - Campanilidae	Campanile nigeriense Campanile nigeriense snail
Sorbeoconcha - Cerithiopsidae	Cerithiopsis (Cerithiopsida) yoloyei n. sp., Cerithiopsis (Cerithiopsis) adekunbii n. sp., Cerithiopsis (Cerithiopsis) akinjidei n. sp., Cerithiopsis (Cerithiopsis) fagadei n. sp. Cerithiopsis (Cerithiopsida) yoloyei n. sp. Adegoke 1977 snail Cerithiopsis (Cerithiopsis) adekunbii n. sp. Adegoke 1977 snail Cerithiopsis (Cerithiopsis) akinjidei n. sp. Adegoke 1977 snail Cerithiopsis (Cerithiopsis) fagadei n. sp. Adegoke 1977 snail
Sorbeoconcha - Triforidae	Cerithiella (Stilus) nigeriensis n. sp. Cerithiella (Stilus) nigeriensis n. sp. Adegoke 1977 snail
Sorbeoconcha - Naticidae	Sinum akinkugbei n. sp., "Euspira togoensis" = Natica (Polinices) togoensis, Crommium nigeriense n. sp. Sinum akinkugbei n. sp. Adegoke 1977 moon snail "Euspira togoensis" = Natica (Polinices) togoensis Furon 1948 moon snail Crommium nigeriense n. sp. Adegoke 1977 moon snail
Neogastropoda - Pseudolividae	Pseudoliva (Buccinorbis) guineensis n. sp. Pseudoliva (Buccinorbis) guineensis n. sp. Adegoke 1977 snail [entered as Psuedoliva guineensis]
Neogastropoda - Costellariidae	Conomitra guineensis n. sp. Conomitra guineensis n. sp. Adegoke 1977 ribbed mitre
Neogastropoda - Cancellariidae	"Bonellitia (Admetula) sp." = Admetula, Bonellitia (Admetula) imevborei n. sp. "Bonellitia (Admetula) sp." = Admetula Cossmann 1889 snail Bonellitia (Admetula) imevborei n. sp. Adegoke 1977 snail
Neogastropoda - Clavatulidae	Turricula (Turricula) nigeriensis n. sp., Turricula (Turricula) ewekoroensis n. sp. Turricula (Turricula) nigeriensis n. sp. Adegoke 1977 snail Turricula (Turricula) ewekoroensis n. sp. Adegoke 1977 snail
Neogastropoda - Turridae	"Clinuropsis togoensis" = Pleurotoma togoensis, Surculites kogbei n. sp. "Clinuropsis togoensis" = Pleurotoma togoensis Oppenheim 1915 turrid Surculites kogbei n. sp. Adegoke 1977 turrid
Neogastropoda - Melongenidae	Heligmotoma (Heligmotoma) nigeriensis n. sp., Heligmotoma (Douvilletoma) oppenheimi n. sp., Heligmotoma (Douvilletoma) oluwolei n. sp., Cornulina (Afrocornulina) africana n. sp., Sycostoma (Sycostoma) jonesi n. sp., Sycostoma (Sycostoma) robusta n. sp., Sycostoma (Pseudomazzalina) ewekoroensis n. sp., Sycostoma (Pseudomazzalina) eamesi n. sp., Levifusus yochelsoni n. sp., "Levifusus palaeocenicus" = Fusus (Levifusus) palaeocenicus Heligmotoma (Heligmotoma) nigeriensis n. sp. Adegoke 1977 snail Heligmotoma (Douvilletoma) oppenheimi n. sp. Adegoke 1977 snail Heligmotoma (Douvilletoma) oluwolei n. sp. Adegoke 1977 snail Cornulina (Afrocornulina) africana n. sp. Adegoke 1977 snail Sycostoma (Sycostoma) jonesi n. sp. Adegoke 1977 snail Sycostoma (Sycostoma) robusta n. sp. Adegoke 1977 snail Sycostoma (Pseudomazzalina) ewekoroensis n. sp. Adegoke 1977 snail Sycostoma (Pseudomazzalina) eamesi n. sp. Adegoke 1977 snail Levifusus yochelsoni n. sp. Adegoke 1977 snail "Levifusus palaeocenicus" = Fusus (Levifusus) palaeocenicus Furon 1948 snail
Neogastropoda - Buccinidae	Janiopsis ewekoroensis n. sp., Tritonidea africana n. sp., Parkeristoma reymenti n. sp., Parkeristoma guineensis n. gen. n. sp., Siphonalia bryani n. sp., Siphonalia nigeriensis n. sp., Siphonalia guineensis n. sp., Strepsidura (Eamesidura) newtoni n. sp., Strepsidura kerstingi, Pseudoliva adelekei n. sp., Pseudoliva rogersi n. sp., Pseudoliva funkeana n. sp. Janiopsis ewekoroensis n. sp. Adegoke 1977 true whelk Tritonidea africana n. sp. Adegoke 1977 true whelk Parkeristoma reymenti n. sp. Adegoke 1977 true whelk Parkeristoma guineensis n. gen. n. sp. Adegoke 1977 true whelk Siphonalia bryani n. sp. Adegoke 1977 true whelk Siphonalia nigeriensis n. sp. Adegoke 1977 true whelk Siphonalia guineensis n. sp. Adegoke 1977 true whelk Strepsidura (Eamesidura) newtoni n. sp. Adegoke 1977 true whelk Strepsidura kerstingi Oppenheim 1915 true whelk Pseudoliva adelekei n. sp. true whelk [entered as Psuedoliva adelekei] Pseudoliva rogersi n. sp. Adegoke 1977 true whelk [entered as Psuedoliva rogersi] Pseudoliva funkeana n. sp. Adegoke 1977 true whelk Psuedoliva funkeana funkeana [20]; Psuedoliva funkeana ornata [1]
Neogastropoda - Fasciolariidae	? Latirus (Polygona) ewekoroensis n. sp., Clavilithes (Cosmothithes) oluwasanmii n. sp., Clavilithes (Rhopalithes) toyei n. sp. ? Latirus (Polygona) ewekoroensis n. sp. Adegoke 1977 snail Clavilithes (Cosmothithes) oluwasanmii n. sp. Adegoke 1977 snail Clavilithes (Rhopalithes) toyei n. sp. Adegoke 1977 snail
Neogastropoda - Columbellidae	? Tetrastomella ewekoroensis n. sp. ? Tetrastomella ewekoroensis n. sp. Adegoke 1977 snail
Neogastropoda - Olividae	Vanpalmeria africana n. gen. n. sp. Vanpalmeria africana n. gen. n. sp. Adegoke 1977 olive snail
Neogastropoda - Olivellidae	Agaronia togoensis Agaronia togoensis Furon 1848 snail
Neogastropoda -	Vincenturris woodringi n. gen. n. sp. Vincenturris woodringi n. gen. n. sp. Adegoke 1977 snail
Neogastropoda - Speightiidae	Clinuropsis diderrichi Clinuropsis diderrichi snail Clinuropsis diderrichi nigeriensis
Neogastropoda - Volutidae	Voluta africana n. sp., Volutocorbis furoni n. sp., "Volutilithes (Afrovolutilithes) uniplicata" = Volutilithes (Neoathleta) uniplicata, "Volutilithes (Afrovolutilithes) gruneri" = Volutilithes gruneri, Volutilithes (Afrovolutilithes) oppenheimi n. sp., "Pseudaulicina simplex" = Lapparia (Pseudaulicina) simplex Voluta africana n. sp. Adegoke 1977 volute Volutocorbis furoni n. sp. Adegoke 1977 volute "Volutilithes (Afrovolutilithes) uniplicata" = Volutilithes (Neoathleta) uniplicata Furon 1948 volute "Volutilithes (Afrovolutilithes) gruneri" = Volutilithes gruneri Oppenheim 1915 volute Volutilithes (Afrovolutilithes) oppenheimi n. sp. Adegoke 1977 volute "Pseudaulicina simplex" = Lapparia (Pseudaulicina) simplex Furon 1948 volute
Neogastropoda - Marginellidae	Cryptospira sp. Cryptospira sp. margin shell n. sp.
Neogastropoda - Muricidae	Hexaplex (Paziella) ewekoroensis n. sp., "Pugilina akoi n. sp." = Crassimurex akoi, Rapana (Nigerapana) ewekoroensis n. sp. Hexaplex (Paziella) ewekoroensis n. sp. Adegoke 1977 murex snail "Pugilina akoi n. sp." = Crassimurex akoi Adegoke 1977 murex snail Rapana (Nigerapana) ewekoroensis n. sp. Adegoke 1977 murex snail
Neogastropoda - Harpidae	? Oniscidia aff. chavani ? Oniscidia aff. chavani Furon 1948 snail
Sorbeoconcha - Strombidae	? Terebellum sp., Tibia bivarica n. sp. ? Terebellum sp. Röding 1798 true conch Tibia bivarica n. sp. Adegoke 1977 true conch
Sorbeoconcha - Rostellariidae	"Rimella ewekoroensis n. sp." = Calyptraphorus ewekoroensis, Tibia (Amplogladius) oppenheimi n. sp., "Rimella subhumerosa" = Rostellaria (Cyclomolops) subhumerosa, "Rimella adekunbiana n. sp." = Cyclomolops adekunbiana "Rimella ewekoroensis n. sp." = Calyptraphorus ewekoroensis Adegoke 1977 snail Tibia (Amplogladius) oppenheimi n. sp. Adegoke 1977 snail "Rimella subhumerosa" = Rostellaria (Cyclomolops) subhumerosa Oppenheim 1915 snail "Rimella adekunbiana n. sp." = Cyclomolops adekunbiana Adegoke 1977 snail
Sorbeoconcha - Cypraeidae	Gisortia brevis Gisortia brevis Douvillé 1920 cowry Gisortia brevis ewekoroensis
Sorbeoconcha - Pediculariidae	Cypraedia ogbei n. sp. Cypraedia ogbei n. sp. Adegoke 1977 snail
Sorbeoconcha - Eocypraeidae	Eocypraea nigeriensis n. sp., "Cypraea ewekoroensis n. sp." = Eocypraea ewekoroensis Eocypraea nigeriensis n. sp. Adegoke 1977 snail "Cypraea ewekoroensis n. sp." = Eocypraea ewekoroensis Adegoke 1977 snail
Sorbeoconcha - Bursidae	Bursa saundersi n. sp. Bursa saundersi n. sp. Adegoke 1977 frog shell
Sorbeoconcha - Ranellidae	Sassia africana n. sp., Sassia nigeriana n. sp. Sassia africana n. sp. Adegoke 1977 triton shell Sassia nigeriana n. sp. Adegoke 1977 triton shell
Sorbeoconcha - Rissoidae	Rissoina nigeriensis n. sp. Rissoina nigeriensis n. sp. snail
Sorbeoconcha - Hipponicidae	Hipponix aff. demissus Hipponix aff. demissus Cox 1952 hoof shell
Sorbeoconcha - Vermetidae	Vermetus (Vermetus) nigeriensis n. sp., Burtinella turriformis n. sp., Burtinella ewekoroensis n. sp. Vermetus (Vermetus) nigeriensis n. sp. Adegoke 1977 worm shell Burtinella turriformis n. sp. worm shell Burtinella ewekoroensis n. sp. Adegoke 1977 worm shell
Cerithioidea - Potamididae	Potamides trituberculatus Potamides trituberculatus Cox 1952 horn snail
Cerithioidea - Turritellidae	Haustator sp., Haustator oyawoyei n. sp., Haustator nigeriensis n. sp., Haustator furoni n. sp., Reymentella olaniyani n. gen. n. sp., "Torquesia adabionensis" = Turritella adabionensis, Torquesia oppenheimi n. sp., Mesalia sp., Mesalia akinkugbei n. sp., Mesalia akinolae n. sp., Mesalia rogersi n. sp., Mesalia salvani n. sp., Mesalia passi n. sp., Mesalia fallockensis, Mesalia reymenti n. sp. Haustator sp. Monfort 1810 turret shell n. sp. Haustator oyawoyei n. sp. Adegoke 1977 turret shell Haustator nigeriensis n. sp. Adegoke 1977 turret shell Haustator furoni n. sp. Adegoke 1977 turret shell Reymentella olaniyani n. gen. n. sp. Adegoke 1977 turret shell "Torquesia adabionensis" = Turritella adabionensis Oppenheim 1915 turret shell Torquesia oppenheimi n. sp. Adegoke 1977 turret shell Mesalia sp. Gray 1847 turret shell sp. A, sp. B Mesalia akinkugbei n. sp. Adegoke 1977 turret shell Mesalia akinolae n. sp. Adegoke 1977 turret shell Mesalia rogersi n. sp. Adegoke 1977 turret shell Mesalia salvani n. sp. Adegoke 1977 turret shell Mesalia passi n. sp. Adegoke 1977 turret shell Mesalia fallockensis Tessier 1952 turret shell Mesalia fallockensis ewekoroensis Mesalia reymenti n. sp. Adegoke 1977 turret shell
Cerithioidea - Diastomatidae	Ewekoroia nigeriensis n. gen. n. sp., Ewekoroia rugifera n. sp., Ewekoroia acirsoides, Keilostoma septemzonatum Ewekoroia nigeriensis n. gen. n. sp. Adegoke 1977 snail Ewekoroia rugifera n. sp. Adegoke 1977 snail Ewekoroia acirsoides Furon 1948 snail Keilostoma septemzonatum snail
Cerithioidea - Batillariidae	Pyrazus nigeriensis n. sp. Pyrazus nigeriensis n. sp. Adegoke 1977 snail
Cerithioidea - Cerithiidae	Cerithium (Nigerithium) coorayi n. sp., Druidwilsonia nigeriana n. gen. n. sp., Wendella nigeriensis n. gen. n. sp., Bittium guineense n. sp. Cerithium (Nigerithium) coorayi n. sp. Adegoke 1977 cerith snail Druidwilsonia nigeriana n. gen. n. sp. Adegoke 1977 cerith snail Wendella nigeriensis n. gen. n. sp. cerith snail Bittium guineense n. sp. cerith snail
Cerithioidea - Planaxidae	Planaxis africana n. sp. Planaxis africana n. sp. Adegoke 1977 snail
Cerithioidea - Thiaridae	Bayania cheneyi n. sp., ? Bayania sp. Bayania cheneyi n. sp. snail ? Bayania sp. Munier-Chalmas 1877 snail
Scaphopoda
Dentaliida - Dentaliidae	Dentalium (Laevidentalium) guineense n. sp., Dentalium (Laevidentalium) nigeriense n. sp., "Dentalium (Antalis) ewekoroense n. sp." = Antalis Dentalium (Laevidentalium) guineense n. sp. tusk shell Dentalium (Laevidentalium) nigeriense n. sp. tusk shell "Dentalium (Antalis) ewekoroense n. sp." = Antalis tusk shell
Bivalvia
Arcida - Glycymerididae	Glycymeris sp., "Glycymeris (Glycymeris) togoensis" = Pectunculus subtogoensis, Glycymeris (Ewekoromeris) ewekoroensis n. sp., Glycymeris (Glycymeris) subtogoensis, Glycymeris (Glycymeris) guineensis n. sp. Glycymeris sp. Da Costa 1778 clam sp. A, sp. B "Glycymeris (Glycymeris) togoensis" = Pectunculus subtogoensis Oppenheim 1915 clam Glycymeris (Ewekoromeris) ewekoroensis n. sp. Adegoke 1977 clam Glycymeris (Glycymeris) subtogoensis clam Glycymeris (Glycymeris) guineensis n. sp. Adegoke 1977 clam
Arcida - Cucullaeidae	Cucullaea ewekoroensis n. sp. Cucullaea ewekoroensis n. sp. Adegoke 1977 clam
Arcida - Arcidae	Arca (Arca) accra, Barbatia (Acar) micronodosa n. sp., Barbatia (Barbatia) nigeriensis n. sp., Barbatia (Barbatia) ewekoroensis n. sp., Barbatia (Barbatia) yoloyei n. sp. Arca (Arca) accra Cox 1952 ark Barbatia (Acar) micronodosa n. sp. Adegoke 1977 miniature ark Barbatia (Barbatia) nigeriensis n. sp. Adegoke 1977 clam Barbatia (Barbatia) ewekoroensis n. sp. Adegoke 1977 clam Barbatia (Barbatia) yoloyei n. sp. Adegoke 1977 clam
Arcida - Parallelodontidae	Cucullaria coxi n. sp. Cucullaria coxi n. sp. Adegoke 1977 clam
Pectinida - Plicatulidae	Plicatula (Darteplicatula) gorodiskii n. sp., Plicatula costaeirregularis n. sp. Plicatula (Darteplicatula) gorodiskii n. sp. Adegoke 1977 scallop Plicatula costaeirregularis n. sp. Adegoke 1977 scallop
Pectinida - Anomiidae	Anomia cooperi n. sp., ? Carolia freneixi n. sp. Anomia cooperi n. sp. Adegoke 1977 jingle ? Carolia freneixi n. sp. Adegoke 1977 scallop
Ostreida - Gryphaeidae	Pycnodonte ewekoroensis n. sp., Pycnodonte nigeriensis n. sp. Pycnodonte ewekoroensis n. sp. Adegoke 1977 oyster Pycnodonte nigeriensis n. sp. Adegoke 1977 oyster
Ostreida - Ostreidae	? Crassostrea sp., Ostrea sp., Ostrea abeokutaensis n. sp., Ostrea asseezi n. sp., Ostrea olowui n. sp., Ostrea kauffmani n. sp., Ostrea meunieri, Ostrea sohli n. sp., Ostrea durotoyei n. sp., Ostrea paleomarginidentata n. sp., Ostrea omatsolae n. sp. ? Crassostrea sp. Sacco 1897 oyster Ostrea sp. Linnaeus 1758 oyster Ostrea abeokutaensis n. sp. Adegoke 1977 oyster Ostrea asseezi n. sp. Adegoke 1977 oyster Ostrea olowui n. sp. Adegoke 1977 oyster Ostrea kauffmani n. sp. Adegoke 1977 oyster Ostrea meunieri Douvillé 1920 oyster Ostrea meunieri nigeriensis Ostrea sohli n. sp. Adegoke 1977 oyster Ostrea durotoyei n. sp. Adegoke 1977 oyster Ostrea paleomarginidentata n. sp. Adegoke 1977 oyster Ostrea omatsolae n. sp. Adegoke 1977 oyster
Ostreida - Malleidae	Vulsella walleri n. sp. Vulsella walleri n. sp. Adegoke 1977 oyster
Mytilida - Mytilidae	Modiolus sp., Mytilus nigeriensis n. sp., Lithophaga turneri n. sp. Modiolus sp. Lamarck 1801 mussel Mytilus nigeriensis n. sp. mussel Lithophaga turneri n. sp. Adegoke 1977 mussel
Mytilida -	Sootryenella ewekoroensis n. gen. n. sp. Sootryenella ewekoroensis n. gen. n. sp. Adegoke 1977 clam
Lucinida - Lucinidae	? Parvicorbis sp., Fimbria subdavidsoni, ? Fimbria cf. furoni, Fimbria africana n. sp., Parvilucina chavani n. sp., Parvilucina elegantissima n. sp., Miltha africana n. sp., Anodontia (Afranodontia) marginidentata n. sp. ? Parvicorbis sp. Cossmann 1892 clam Fimbria subdavidsoni Furon 1948 clam ? Fimbria cf. furoni Cox 1952 clam Fimbria africana n. sp. Adegoke 1977 clam Parvilucina chavani n. sp. Adegoke 1977 clam Parvilucina elegantissima n. sp. Adegoke 1977 clam Miltha africana n. sp. Adegoke 1977 clam Anodontia (Afranodontia) marginidentata n. sp. Adegoke 1977 clam
Pholadida - Corbulidae	Corbula nigeriensis n. sp., Corbula atlantica Corbula nigeriensis n. sp. Adegoke 1977 clam Corbula atlantica Furon 1948 clam
Cardiida - Corbiculidae	Corbicula serrodentata, Corbicula (Corbicula) sp. Corbicula serrodentata Adegoke 1977 clam Corbicula (Corbicula) sp. Megerle 1811 clam
Cardiida - Glossidae	Glossus (Cytherocardia) nigeriana n. sp. Glossus (Cytherocardia) nigeriana n. sp. Adegoke 1977 clam
Cardiida - Mactridae	Spisula (Notospisula) ewekoroensis n. sp., Spisula (Crepispisula) nigeriensis n. sp. Spisula (Notospisula) ewekoroensis n. sp. Adegoke 1977 clam Spisula (Crepispisula) nigeriensis n. sp. Adegoke 1977 clam
Cardiida - Veneridae	Macrocallista femii n. sp., Macrocallista lunulata n. sp., Macrocallista aurilitoralis, Macrocallista ewekoroensis n. sp., Dosiniopsis ewekoroensis n. sp., Pitar (Pitar) ewekoroensis n. sp., "Macrocallista gruneri" = Cytherea gruneri, "Costacallista adabionensis" = Cytherea adabionensis, Tivelina ewekoroensis n. sp., ? Aeora africana n. sp., Transennella africana n. sp. Macrocallista femii n. sp. Adegoke 1977 venus clam Macrocallista lunulata n. sp. Adegoke 1977 venus clam Macrocallista aurilitoralis Cox 1952 venus clam Macrocallista ewekoroensis n. sp. Adegoke 1977 venus clam Dosiniopsis ewekoroensis n. sp. Adegoke 1977 venus clam Pitar (Pitar) ewekoroensis n. sp. Adegoke 1977 venus clam "Macrocallista gruneri" = Cytherea gruneri Oppenheim 1915 venus clam "Costacallista adabionensis" = Cytherea adabionensis Oppenheim 1915 venus clam Tivelina ewekoroensis n. sp. Adegoke 1977 venus clam ? Aeora africana n. sp. Adegoke 1977 venus clam Transennella africana n. sp. Adegoke 1977 venus clam
Cardiida - Arcticidae	Arctica africana n. sp. Arctica africana n. sp. Adegoke 1977 clam
Cardiida - Trapezidae	Kitsonia paleocenica n. sp. Kitsonia paleocenica n. sp. Adegoke 1977 clam
Cardiida - Ungulinidae	Diplodonta (Diploodnta) adangmarum, Diplodonta (Diploodnta) nigeriensis n. sp. Diplodonta (Diploodnta) adangmarum Adegoke 1977 clam Diplodonta (Diploodnta) nigeriensis n. sp. Adegoke 1977 clam
Cardiida - Cardiidae	Cardium (Cardium) zechi, Cardium (Cardium) nicklesi n. sp., Cardium (Cardium) guineense n. sp., Cardium (Cardium) okeziei n. sp., "Trachycardium mamillatum" = Cardium (Trachycardium) mamillatum Cardium (Cardium) zechi cockle Cardium (Cardium) nicklesi n. sp. Adegoke 1977 cockle Cardium (Cardium) guineense n. sp. Adegoke 1977 cockle Cardium (Cardium) okeziei n. sp. Adegoke 1977 cockle "Trachycardium mamillatum" = Cardium (Trachycardium) mamillatum Furon 1948 cockle
Cardiida - Donacidae	Notodonax (Protodonax) nigeriana n. sp. Notodonax (Protodonax) nigeriana n. sp. Adegoke 1977 clam
Cardiida - Tellinidae	Tellina (Acropagia) sp., Tellina (Elliptotellina) kouriatchyi Tellina (Acropagia) sp. Linnaeus 1758 tellin clam Tellina (Elliptotellina) kouriatchyi Furon 1948 tellin clam
Carditida - Condylocardiidae	Carditella (Carditella) baloguni n. sp. Carditella (Carditella) baloguni n. sp. Adegoke 1977 clam
Carditida - Carditidae	Venericardia juneri, Venericardia tabligboensis, Venericardia (Venericor) nigeriana n. sp., Venericardia angusticosta n. sp., Venericardia togoensis, Venericardia koerti, Venericardia costagranosa n. sp., Venericardia ewekoroensis n. sp. Venericardia juneri Cox 1952 clam Venericardia tabligboensis Oppenheim 1915 clam Venericardia (Venericor) nigeriana n. sp. Adegoke 1977 clam Venericardia angusticosta n. sp. Adegoke 1977 clam Venericardia togoensis Oppenheim 1915 clam Venericardia koerti Oppenheim 1915 clam Venericardia costagranosa n. sp. Adegoke 1977 clam Venericardia ewekoroensis n. sp. Adegoke 1977 clam
Carditida - Astartidae	Astarte (Astarte) ewekoroensis n. sp. Astarte (Astarte) ewekoroensis n. sp. Adegoke 1977 clam
Malacostraca
Decapoda - Callianassidae	Callianassa seefriedi Callianassa seefriedi Ammon 1905 decapod