PRI 912 (Eocene of the United States)

Where: Caldwell County, Louisiana (32.0° N, 92.0° W: paleocoordinates 33.0° N, 83.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Moodys Branch Formation (Jackson Group), Bartonian (41.3 - 38.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: mesofossils

Collection methods: Collected by G.D. Harris, K.V.W. Palmer and E.L. Palmer, September 14, 1938. G.S.A. Grant #24338, field No. 9.

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 92357: authorized by Jocelyn Sessa, entered by Laurie Eccles on 08.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Scaphopoda
 Dentaliida - Dentaliidae
Dentalium (Antalis) mississippiense Conrad 1848 tusk shell
Dentalium (Antalis) mississippiense jacksonense
Gastropoda
 Sorbeoconcha - Rostellariidae
 Neogastropoda - Muricidae
Hexaplex (Hexaplex) katherinae Vokes 1968 murex snail
 Neogastropoda - Volutidae
Lapparia dumosa Conrad 1854 volute
Lapparia dumosa exiqua
Athleta symmetricus Conrad 1854 volute
 Neogastropoda - Buccinidae
Pseudoliva vetusta Conrad 1833 true whelk
Pseudoliva vetusta perspectiva
 Neogastropoda - Fasciolariidae
 Neogastropoda - Olivellidae
Agaronia media Meyer 1885 snail
 Sorbeoconcha - Naticidae
 Sorbeoconcha - Capulidae
Capulus americanus Conrad 1854 snail
 Neotaenioglossa - Calyptraeidae
Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Cerithioidea - Turritellidae
"Turritella alveata" = Kapalmerella alveata
"Turritella alveata" = Kapalmerella alveata Conrad 1854 turret shell
 Heterostropha - Architectonicidae
"Architectonica (Solariaxis) acuta" = Architectonica acuta
"Architectonica (Solariaxis) acuta" = Architectonica acuta Conrad 1854 sundial
 Opisthobranchia - Retusidae