PRI 733 (Eocene of the United States)

Where: Bastrop County, Texas (30.0° N, 97.2° W: paleocoordinates 32.1° N, 86.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Weches Formation (Claiborne Group), Lutetian (47.8 - 41.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• Environmental setting from PBDB #84146

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 90455: authorized by Jocelyn Sessa, entered by Laurie Eccles on 26.07.2009, edited by Ursula Smith

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Tectibranchia - Akeridae
Akera texana Aldrich 1911 snail
 Thecosomata -
 Heterostropha - Mathildidae
Gegania antiquata snail
Gegania antiquata texana
 Heterostropha - Pyramidellidae
 Heterostropha - Architectonicidae
"Architectonica (Stellaxis) alveata" = Architectonica (Stellaxis) alveatum Conrad 1833 sundial
Architectonica (Stellaxis) alveata var. B
 Cerithioidea - Turritellidae
"Turritella rina" = Haustator rina
"Turritella rina" = Haustator rina turret shell
Turritella rina wechesensis
 Neotaenioglossa - Calyptraeidae
Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Sorbeoconcha - Vitrinellidae
 Sorbeoconcha - Naticidae
Euspira aldrichi moon snail
Neverita spp. Risso 1826 moon snail
 Sorbeoconcha - Cassidae
"Phalium brevicostatum" = Cassis brevicostatus
"Phalium brevicostatum" = Cassis brevicostatus Conrad 1834 snail
 Neogastropoda - Mitridae
"Mitra (Fusimitra) adamsi" = Fusimitra, "Mitra (Fusimitra) polita" = Fusimitra
"Mitra (Fusimitra) adamsi" = Fusimitra mitre shell
"Mitra (Fusimitra) polita" = Fusimitra mitre shell
 Neogastropoda -
 Neogastropoda - Nassariidae
 Neogastropoda - Melongenidae
Levifusus irrasus snail
Levifusus irrasus hodsoni
Levifusus spp. Conrad 1865 snail
 Neogastropoda - Fasciolariidae
 Neogastropoda - Buccinidae
Dorsanum scalatum Heilprin 1891 true whelk
Pseudoliva vetusta Conrad 1833 true whelk
Pseudoliva vetusta linosa
Bolis enterogramma true whelk
 Neogastropoda - Columbellidae
 Neogastropoda - Muricidae
Murex fusates murex snail
Hexaplex (Hexaplex) vanuxemi Conrad 1865 murex snail
 Neogastropoda - Volutidae
 Neogastropoda - Olivellidae
Agaronia bombylis Conrad 1833 snail
 Neogastropoda - Costellariidae
Uromitra brazosana ribbed mitre
 Neogastropoda - Turridae
Infracoronia ludoviciana Harris and Palmer 1947 turrid
"Coronia margaritosa" = Gemmula (Coronia) turrid
"Coronia sublerchi" = Gemmula (Coronia) turrid
"? Coronia alternata" = Gemmula (Coronia) turrid
? Pleurofusia huppertzi turrid
? Pleurofusia huppertzi and ? Pleurofusia huppertzi var. Asubspecies ? Pleurofusia huppertzi var. B
Hesperiturris nodocarinatus Gabb 1860 turrid
Hesperiturris nodocarinatus enstricrinus and Hesperiturris nodocarinatus var.
Michela trabeatoides Harris 1895 turrid
Eosurcula moorei Gabb 1860 turrid
Eosurcula moorei and Eosurcula moorei corpulenta and Eosurcula moorei olssoni
Surculites cabezai turrid
Surculites cabezai and Surculites cabezai exoletus
 Neogastropoda - Conidae
Conus (Lithoconus) smithvillensis Harris 1895 cone shell
 Neogastropoda - Mangeliidae
""Pleurotoma" ("Bela") rebeccae" = Bela
""Pleurotoma" ("Bela") rebeccae" = Bela snail
 Neogastropoda - Clavatulidae
"Leptosurcula beadata" = Turricula (Leptosurcula)
"Leptosurcula beadata" = Turricula (Leptosurcula) snail
 Neogastropoda - Borsoniidae
Microdrillia infans snail
Microdrillia infans bicincta
 Neogastropoda - Cochlespiridae
"Eodrillia texanopsis" = Tropisurcula (Eodrillia), Cochlespira bella
"Eodrillia texanopsis" = Tropisurcula (Eodrillia) snail
Cochlespira bella Harris 1937 snail
 Neogastropoda - Cancellariidae
 Sorbeoconcha - Xenophoridae
Xenophora "sp. C" Fischer von Waldheim 1807 carrier shell
 Sorbeoconcha - Pediculariidae
Cypraedia subcancellata Johnson 1899 snail
 Sorbeoconcha - Strombidae
"Ectinochilus texanum" = Rimella
"Ectinochilus texanum" = Rimella true conch
Ectinochilus texanum cherokense
 Vanikoroidea - Eulimidae
Balcis spp. Leach 1847 snail
Bivalvia
 Nuculanida - Nuculanidae
"Yoldia (Orthoyoldia) psammotaea" = Orthoyoldia psammotaea, ? Saccella atakta
"Yoldia (Orthoyoldia) psammotaea" = Orthoyoldia psammotaea Dall 1898 pointed nut clam
? Saccella atakta pointed nut clam
 Nuculanida - Yoldiidae
 Nuculida - Nuculidae
Nucula (Nucula) smithvillensis Stenzel and Twining 1957 nut clam
 Arcida - Arcidae
Barbatia (Acar) aspera Conrad 1854 miniature ark
Pachecoa (Pachecoa) pulchra clam
Pachecoa (Pachecoa) pulchra variations
 Ostreida - Ostreidae
Cubitostrea smithvillensis Harris 1919 oyster
 Pectinida - Pectinoidae
 Pectinida - Limidae
"Lima (Limatulella) smithvillensis" = Limaria (Limaria) smithvillensis
"Lima (Limatulella) smithvillensis" = Limaria (Limaria) smithvillensis Stenzel and Twining 1957 file clam
 Carditida - Astartidae
 Carditida - Carditidae
Venericardia (Rotundicardia) rotunda Lea 1833 clam
Venericardia (Rotundicardia) rotunda coloradonis and Venericardia (Rotundicardia) rotunda flabellum
 Carditida - Crassatellidae
Crassatella trapaquara Harris 1895 clam
"Crassatella texana" = Crassatellites texana Harris 1895 clam
 Pholadida - Corbulidae
Corbula (Caryocorbula) deusseni, "Corbula (Caryocorbula) engonatoides" = Caryocorbula engonatoides
"Corbula (Caryocorbula) engonatoides" = Caryocorbula engonatoides Gardner 1927 clam