PBDB Collection

PRI 741 (Eocene of the United States)

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

• Paleocoordinates: 36.9° N, 74.8° W (Wright 2013)

• 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: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

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