UTBEG 31190 (USNM Collection) (Miocene of the United States)

Where: San Jacinto County, Texas (30.8° N, 95.2° W: paleocoordinates 31.3° N, 91.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Oakville Formation, Hemingfordian (20.4 - 16.0 Ma)

• "Oakville Clays of Middle Miocene age"

Environment/lithology: terrestrial; claystone

• fossils are from a "'muddy' colloidal clay" but site includes "dirty yellow clays, barite and selenite gypsum crystals, cross-banded fine grained sandstone, pipes of siltstone, calcareous cement"

Size class: macrofossils

Reposited in the USNM

• new collection made by the authors under a grant from Sam Houston State University and reposited in the USNM

Primary reference: B. Hinderstein and J. Boyce. 1977. The Miocene salamander Batrachosauroides dissimulans (Amphibia, Urodela) from East Texas. Journal of Herpetology 11(3):369-372 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75945: authorized by John Alroy, entered by John Alroy on 06.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Salientia -
 Proteida - Batrachosauroididae
Batrachosauroides dissimulans Taylor and Hesse 1943 salamander
Reptilia
 Loricata -
Crocodylia indet. crocodilian
 Serpentes -
 Testudines -
Testudines indet. Batsch 1788 turtle
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
Mammalia
 Perissodactyla - Equidae
Parahippus leonensis Sellards 1916 anchitheriine horse
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros
 Artiodactyla - Camelidae
Floridatragulus sp. White 1940 camel
 Artiodactyla - Protoceratidae
Prosynthetoceras texanus Hay 1924 protoceratid
Actinopteri
 Siluriformes - Ictaluridae
Ictaluridae indet. Gill 1861 catfish
"catfish, possibly Ameirus"
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
unclassified
  -
Mollusca indet. Linnaeus 1758