Medio Creek Site No. 19, Richards farm (Miocene of the United States)

Also known as Lapara Creek fauna; TMM 31170; east of Normanna, WPA, Work Project No. 12510,

Where: Bee County, Texas (28.5° N, 97.7° W: paleocoordinates 29.0° N, 95.3° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Goliad Formation, Clarendonian (13.6 - 10.3 Ma)

• base of formation

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; lenticular sandstone and lithified, brown, red sandstone

• "The fossils were in sand lenses interbedded with clay ball conglomerates, in a channel fill which cuts deeply into a resistant reddish brown sandstone."

Size classes: macrofossils, mesofossils

Collected by WPA in 1940–1941; reposited in the TMM

Collection methods: surface (float), surface (in situ), mechanical,

Primary reference: Anonymous. 1940. The seventh quarterly report covering the quarter ending December 31, 1940 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project. O.P. No. 665-66-3-233. State Serial No. 300-88 1-44 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18645: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Evangelos Vlachos and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• may or may not be the Medio Creek site 2 mi SE of Normana of Weeks 1945; apparently the specimens are at UCMP and were not seen by later authors
status of Weeks' "2 miles north of the Beevile-Goliad highway" locality on Medio Creek is unclear
Mammalia
 Placentalia -
Rodentia indet.2 Bowdich 1821 rodent
 Rodentia - Mylagaulidae
"Ceratogaulus cf. rhinoceros" = Ceratogaulus rhinocerus7
"Ceratogaulus cf. rhinoceros" = Ceratogaulus rhinocerus7 Matthew 1902 rodent
TMM 31170-67 left P4
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet.2 Gray 1821 rhinoceros
Teleoceras sp.2 Hatcher 1894 rhinoceros
 Perissodactyla - Equidae
Hippotherium sp.1 Kaup 1832 hipparionine horse
Hipparion tehonense7 Merriam 1916 hipparionine horse
TMM 31170-90 M1/M2, -188 M1/M2, -189 P3/P4, -190 P3/P4, -191 P3/P4, -192 m1/m2, -193 M1/M2, -194 M3, -195 M3, -196 M1/M2, 198 M1/M2, -288 P3/P4, -920 M1/M2
Pseudhipparion curtivallum9 Quinn 1955 hipparionine horse
"Nannippus cf. ingenuum" = Cormohipparion ingenuum6 Leidy 1885 hipparionine horse
Merychippus sp.2 Leidy 1856 horse
Calippus regulus4 Johnston 1937 horse
Calippus martini5 Hesse 1936 horse
 Artiodactyla - Tayassuidae
Prosthennops sp.2 Matthew and Gidley 1904 peccary
 Artiodactyla - Camelidae
Protolabis sp.2 Cope 1876 camel
"Alticamelus sp." = Aepycamelus3 Macdonald 1956 camel
Procamelus occidentalis8 Leidy 1858 camel
 Artiodactyla - Protoceratidae
Synthetoceras tricornatus7 Stirton 1932 protoceratid
TMM 31170-84 m3
 Artiodactyla - Gelocidae
Pseudoceras skinneri7 Frick 1937 ruminant
TMM 31170-109 partial left dentary with p4-m1
 Artiodactyla - Moschidae
Blastomeryx sp.2 Cope 1877 musk deer
 Artiodactyla - Palaeomerycidae
Palaeomerycidae indet.2 Lydekker 1883 ruminant
 Artiodactyla - Antilocapridae
Merycodontinae indet.8 Matthew 1904 pronghorn
Ramoceros ramosus7 Cope 1874 pronghorn
TMM 31170-28 m3
 Artiodactyla - Merycoidodontidae
Ustatochoerus cf. medius7 Leidy 1858 oreodont
Merychyus sp.1 Leidy 1858 oreodont
 Carnivora - Amphicyonidae
Amphicyon sp.2 Lartet 1836 bear-dog
 Carnivora - Canidae
Aelurodon taxoides7 Hatcher 1894 bone-crushing dog
TMM 31170-64 partial left dentary with m1, -65 right M2
 Proboscidea - Gomphotheriidae
cf. Gomphotherium sp.7 Burmeister 1837 gomphothere
TMM 31170-47 upper tusk fragment
Reptilia
 Testudines - Testudinidae
Testudo sp.2 Linnaeus 1758 turtle
 Testudines - Trionychidae
Trionyx sp.2 Geoffroy Saint-Hilaire 1809 softshell turtle
 Crocodylia - Alligatoridae
Alligator cf. mississippiensis7 Daudin 1801 American alligator
TMM 31170-31, -42, -226 teeth
Aves
  -
Aves indet.2 Linnaeus 1758 bird
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.2 Agassiz 1843 gar
 Siluriformes - Siluridae
Ameiurus sp.2 Rafinesque 1820 catfish