PBDB Collection

PRI 741 (Eocene of the United States)

Where: Ouachita County, Louisiana (32.5° N, 92.1° W: paleocoordinates 33.5° N, 83.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cook Mountain Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: mesofossils

Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98787: authorized by Jocelyn Sessa, entered by Laurie Eccles on 20.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Cephalopoda
-	Belosaepia uncinata Belosaepia uncinata Palmer 1937
Gastropoda
Cerithioidea - Turritellidae	"Turritella rina" = Haustator rina "Turritella rina" = Haustator rina turret shell
Sorbeoconcha - Naticidae	Polinices aratus, Natica "spp. A" Polinices aratus moon snail Natica "spp. A" Scopoli 1777 moon snail
Sorbeoconcha - Strombidae	"Ectinochilus texanum" = Rimella "Ectinochilus texanum" = Rimella true conch
Sorbeoconcha - Ficidae	"Ficopsis penita" = Ficus "Ficopsis penita" = Ficus fig shell
Sorbeoconcha - Ranellidae	"Distorsio (Personella) septemdentata" = Sassia (Personella) septemdentata "Distorsio (Personella) septemdentata" = Sassia (Personella) septemdentata Gabb 1860 triton shell
Sorbeoconcha - Cassidae	"Phalium brevicostatum" = Cassis brevicostatus, Galeodea planotecta "Phalium brevicostatum" = Cassis brevicostatus Conrad 1834 snail Galeodea planotecta Meyer and Aldrich 1886 snail
Neogastropoda - Volutidae	Lapparia mooreana Lapparia mooreana volute
Neogastropoda - Muricidae	Hexaplex (Hexaplex) silvaticus Hexaplex (Hexaplex) silvaticus Palmer 1937 murex snail
Neogastropoda - Costellariidae	Pyramimitra terebraeformis, Conomitra texana Pyramimitra terebraeformis Conrad 1848 ribbed mitre Conomitra texana ribbed mitre
Neogastropoda - Turridae	Michela trabeatoides Michela trabeatoides Harris 1895 turrid
Neogastropoda - Columbellidae	Mitrella (Clinurella) casteri, "Mitrella (Columbellopsis) mississippiensis" = Columbellopsis Mitrella (Clinurella) casteri snail "Mitrella (Columbellopsis) mississippiensis" = Columbellopsis snail
Neogastropoda - Fasciolariidae	Clavilithes penrosei, Clavilithes regexus, Clavilithes texanus, Falsifusus bastropensis, Lirofusus thoracicus Clavilithes penrosei snail Clavilithes regexus snail Clavilithes texanus snail Falsifusus bastropensis snail Lirofusus thoracicus snail
Neogastropoda - Buccinidae	Buccitriton sagenum, Pseudoliva vetusta Buccitriton sagenum Conrad 1833 true whelk Pseudoliva vetusta Conrad 1833 true whelk Pseudoliva vetusta carinata
Neogastropoda - Melongenidae	Levifusus "sp. G", Levifusus mortoniopsis Levifusus "sp. G" Conrad 1865 snail Levifusus mortoniopsis snail Levifusus mortoniopsis carexus
Neogastropoda - Mitridae	Volvaria reticulata Volvaria reticulata Johnson 1899 mitre shell
Neogastropoda - Cancellariidae	Sveltella parva, Sveltella parva, Trigonostoma babylonicum, Trigonostoma panones Sveltella parva snail Sveltella parva snail Trigonostoma babylonicum Lea 1833 snail Trigonostoma panones snail including Trigonostoma panones smithvillense and Trigonostoma panones juniperum
Epitonioidea - Epitoniidae	Acirsa (Hemiacirsa) whitneyi, Aciculiscala jacobi, Epitonium (Elegantiscala) kingae Acirsa (Hemiacirsa) whitneyi Palmer 1937 wentletrap Aciculiscala jacobi Palmer 1937 wentletrap Epitonium (Elegantiscala) kingae wentletrap
Vanikoroidea - Eulimidae	Niso "sp. D" Niso "sp. D" Risso 1826 snail
Opisthobranchia - Retusidae	cf. Rhizorus minutissimus, cf. Rhizorus wellsi, Retusa (Cylichnina) galba cf. Rhizorus minutissimus snail cf. Rhizorus wellsi snail Retusa (Cylichnina) galba Conrad 1833 snail
Opisthobranchia - Cylichnidae	Abderospira stewarti Abderospira stewarti Palmer 1937 snail
Opisthobranchia - Scaphandridae	Mnestia dekayi Mnestia dekayi snail
Heterostropha - Mathildidae	Gegania antiquata Gegania antiquata snail Gegania antiquata striata
Heterostropha - Acteonidae	Acteon pomilius, Acteon idoneus Acteon pomilius snail Acteon pomilius punctatus Acteon idoneus Conrad 1833 snail
Heterostropha - Ringiculidae	Ringicula trapaquara Ringicula trapaquara snail Ringicula trapaquara deusseni
Heterostropha - Architectonicidae	Architectonica (Granosolarium) meekana, "Architectonica (Stellaxis) alveata" = Architectonica (Stellaxis) alveatum Architectonica (Granosolarium) meekana Harris and Palmer 1947 sundial Architectonica (Granosolarium) meekana splendida "Architectonica (Stellaxis) alveata" = Architectonica (Stellaxis) alveatum Conrad 1833 sundial
Heterostropha - Pyramidellidae	Odostomia trapaquara, Pyramidella perexilis, Pyramidella (Ulfa) lapinaria Odostomia trapaquara snail Pyramidella perexilis snail Pyramidella (Ulfa) lapinaria snail
Trochoidea - Skeneidae	Solariorbis "sp. A" Solariorbis "sp. A" Conrad 1865 snail
Bivalvia
Carditida - Crassatellidae	Bathytormus clarkensis Bathytormus clarkensis Dall 1900 clam Bathytormus clarkensis ludovicianus
Scaphopoda
Dentaliida - Dentaliidae	Dentalium "sp. D" Dentalium "sp. D" Linnaeus 1758 tusk shell
Gadilida - Gadilidae	Cadulus "sp. A", Cadulus (Cadulus) ouachitensis Cadulus "sp. A" Philippi 1844 tusk shell Cadulus (Cadulus) ouachitensis tusk shell