BR-W (Eocene of the United States)

Also known as Brazos River

Where: Burleson County, Texas (30.7° N, 96.6° W: paleocoordinates 32.8° N, 85.6° W)

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

Environment/lithology: shallow subtidal; poorly lithified claystone

• clay

Size classes: macrofossils, mesofossils

Collected by Christopher Garvie

Primary reference: W. J. Foster, C. L. Garvie, A. M. Weiss, A. D. Muscente, M. Aberhan, J. W. Counts, and R. C. Martindale. 2020. Resilience of marine invertebrate communities during the early Cenozoic hyperthermals. Scientific Reports 10:2176 [A. Miller/J. Sessa/W. Foster]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 205436: authorized by William Foster, entered by William Foster on 15.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Opisthobranchia - Retusidae
Retusa spp.
Retusa spp. Brown 1827 snail
 Heterostropha - Mathildidae
Gegania sp.
Gegania sp. Jeffreys 1884 snail
 Heterostropha - Pyramidellidae
Pyramidella sp., Turbonilla sp.
Pyramidella sp. Lamarck 1799 snail
Turbonilla sp. Risso 1826 snail
 Heterostropha - Architectonicidae
"Architectonica (Stellaxis) alveata" = Architectonica (Stellaxis) alveatum, Pseudomalaxis sp.
"Architectonica (Stellaxis) alveata" = Architectonica (Stellaxis) alveatum Conrad 1833 sundial
Pseudomalaxis sp. Fischer 1850 snail
 Cerithioidea - Turritellidae
Turritella sp.
Turritella sp. Lamarck 1799 turret shell
 Sorbeoconcha - Naticidae
aff. Natica spp., Sinum sp.
aff. Natica spp. Scopoli 1777 moon snail
Sinum sp. Röding 1798 moon snail
 Sorbeoconcha - Ranellidae
"Distorsio (Personella) septemdentata" = Sassia (Personella) septemdentata
"Distorsio (Personella) septemdentata" = Sassia (Personella) septemdentata Gabb 1860 triton shell
 Neogastropoda - Nassariidae
Colwellia sp.
Colwellia sp. Nuttall and Cooper 1973 snail
 Neogastropoda - Melongenidae
Levifusus sp.
Levifusus sp. Conrad 1865 snail
 Neogastropoda - Fasciolariidae
Clavilithes sp.
Clavilithes sp. Swainson 1840 snail
 Neogastropoda - Buccinidae
Pseudoliva sp.
Pseudoliva sp. Swainson 1840 true whelk
 Neogastropoda - Columbellidae
Mitrella sp.
Mitrella sp. Risso 1826 snail
 Neogastropoda - Volutidae
"Athleta petrosus" = Athleta petrosa
"Athleta petrosus" = Athleta petrosa Conrad 1833 volute
 Neogastropoda - Olividae
Ancilla sp.
Ancilla sp. Lamarck 1799 olive snail
 Neogastropoda - Terebridae
Hastula sp.
Hastula sp. Adams and Adams 1853 auger snail
 Neogastropoda - Turridae
"Coronia sp." = Gemmula (Coronia), Surculoma sp., Hesperiturris sp., Michela sp., Lyrosurcula sp., Protosurcula sp.
"Coronia sp." = Gemmula (Coronia) turrid
Surculoma sp. Casey 1904 turrid
Hesperiturris sp. Gardner 1945 turrid
Michela sp. Gardner 1945 turrid
Protosurcula sp. Casey 1904 turrid
 Neogastropoda - Conidae
Conus sp.
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Clavatulidae
"Leptosurcula sp." = Turricula (Leptosurcula)
"Leptosurcula sp." = Turricula (Leptosurcula) Casey 1904 snail
 Neogastropoda - Cancellariidae
Trigonostoma sp.
Trigonostoma sp. Blainville 1827 snail
 Epitonioidea - Epitoniidae
"aff. Scala sp." = Epitonium (Scala)
"aff. Scala sp." = Epitonium (Scala) Humphrey wentletrap
Bivalvia
 Nuculanida - Nuculanidae
Nuculana sp.
Nuculana sp. Link 1807 pointed nut clam
 Nuculida - Nuculidae
Nucula sp.
Nucula sp. Lamarck 1799 nut clam
 Arcida - Arcidae
Pachecoa sp.
Pachecoa sp. Harris 1919 clam
 Carditida - Carditidae
Venericardia spp.
Venericardia spp. Lamarck 1801 clam
 Pholadida - Corbulidae
Caryocorbula sp., Vokesula sp.
Caryocorbula sp. Gardner 1926 clam
Vokesula sp. Stenzel and J. T 1957 clam
 Cardiida - Semelidae
? Abra sp.
? Abra sp. Lamarck 1818 abra