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