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
Actinopteri
 Siluriformes - Siluridae
Ameiurus sp.2 Rafinesque 1820 catfish
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.2 Agassiz 1843 gar
Reptilia
 Testudines - Trionychidae
Trionyx sp.2 Geoffroy Saint-Hilaire 1809 softshell turtle
 Testudines - Pantestudinidae
Testudo sp.2 Linnaeus 1758 turtle
Aves
  -
Aves indet.2 Linnaeus 1758 bird
Reptilia
 Crocodylia - Alligatoridae
Alligator cf. mississippiensis7 Daudin 1801 American alligator
TMM 31170-31, -42, -226 teeth
Mammalia
 Glires -
 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
Merychippus sp.2 Leidy 1856 horse
Hippotherium sp.1 Kaup 1832 hipparionine horse
Pseudhipparion curtivallum9 Quinn 1955 hipparionine horse
Nannippus cf. ingenuum6 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
Calippus martini5 Hesse 1936 horse
Calippus regulus4 Johnston 1937 horse
 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
 Ungulata - Merycoidodontidae
Ustatochoerus cf. medius7 Leidy 1858 oreodont
Merychyus sp.1 Leidy 1858 oreodont
 Ungulata - Tayassuidae
Prosthennops sp.2 Matthew and Gidley 1904 peccary
 Ungulata - Camelidae
Protolabis sp.2 Cope 1876 camel
Procamelus occidentalis8 Leidy 1858 camel
"Alticamelus sp." = Aepycamelus3 Macdonald 1956 camel
 Ungulata - Protoceratidae
Synthetoceras tricornatus7 Stirton 1932 protoceratid
TMM 31170-84 m3
 Ungulata - Gelocidae
Pseudoceras skinneri7 Frick 1937 ruminant
TMM 31170-109 partial left dentary with p4-m1
 Ungulata - Palaeomerycidae
Palaeomerycidae indet.2 Lydekker 1883 ruminant
 Ungulata - Antilocapridae
Merycodontinae indet.8 Matthew 1904 pronghorn
Ramoceros ramosus7 Cope 1874 pronghorn
TMM 31170-28 m3
 Ungulata - Moschidae
Blastomeryx sp.2 Cope 1877 musk deer