Mount Barry, 12 (Admiral Formation) (Permian of the United States)

Also known as Locality 12 (Romer 1928), Locality IVf (Romer & Price 1940), Mt. Barry, faunal Zone 1, Wichita Group, Texas red-beds, redbeds

Where: Wichita County, Texas (33.8° N, 98.7° W: paleocoordinates 0.1° N, 29.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Admiral Formation (Wichita Group), Artinskian (290.1 - 279.3 Ma)

• Details for Faunal Zone 1 of Romer 1928: "These beds [estimated 350 feet] occupy the middle portion of the Wichita as Cummins conceived of it; but they are now seen to occupy the lower part of this group. This zone is approximately equivalent to the Admiral Formation of Plummer and Moore (1921), although no definite correlation can be made at present." Lower Permian stratigraphy for Texas was modified by Hentz (1988).

•the Admiral Formation is entirely Artinskian according to Wardlaw 2005, Permophiles (JA)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red, argillaceous, sandy shale

• terrestrial and near-shore deposition
• red-beds, "a series of typical red beds, consisting of clays, sandstone and shales, mostly red in color, and devoid of limestones."

Size class: macrofossils

Collection methods: Romer (1928) paper is a review of vertebrates from the Texas red-beds with previously unreported (or undetailed) localities.

Primary reference: A. S. Romer. 1928. Vertebrate faunal horizons in the Texas Permo-Carboniferous red beds. University of Texas Bulletin 2801:67-108 [J. Alroy/R. Whatley/W. Clyde]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28142: authorized by John Alroy, entered by Robin Whatley on 25.01.2003, edited by Torsten Liebrecht

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Many of Cope's types are from this region."
unclassified
  -
Metarmosaurus fossatus n. gen. n. sp.
Metarmosaurus fossatus n. gen. n. sp.
Authority is not Romer 1928.
Amphibia
 Temnospondyli - Trimerorhachidae
Trimerorhachis sp. Cope 1878 tetrapod
entered as "Trimerorachis"
 Temnospondyli - Dissorophidae
Parioxys ferricolus n. gen. n. sp.1
Parioxys ferricolus n. gen. n. sp.1 Cope 1878 tetrapod
Authority is not Romer 1928.
 Temnospondyli - Eryopidae
Eryops anatinus n. sp. tetrapod
Rachitomus valens, n. g., n. sp., authority is not Romer 1928. R. valens = Eryops acc. to Romer 1928.
Osteichthyes
 Embolomera - Archeriidae
Cricotus sp. Cope 1875 tetrapod
Reptilia
 Bolosauria - Bolosauridae
Bolosaurus major n. sp., Bolosaurus striatus n. gen. n. sp.
Bolosaurus major n. sp. Broom 1913 parareptile
AMNH 4461 (type); catalogue numbers are from Broom (1913)
Bolosaurus striatus n. gen. n. sp. Cope 1878 parareptile
AMNH 4320 (type), 4321, 4322, 4324, 4326, 4327, 4462; catalogue numbers are from Broom (1913)
Osteichthyes
 Synapsida - Sphenacodontidae
"Theropleura obtusidens n. sp." = Secodontosaurus obtusidens3, "Clepsydrops natalis n. sp." = Dimetrodon natalis, "Dimetrodon rectiformis n. sp." = Dimetrodon limbatus
"Theropleura obtusidens n. sp." = Secodontosaurus obtusidens3 Cope 1880 synapsid
AMNH 4007 (part, type)
"Clepsydrops natalis n. sp." = Dimetrodon natalis Cope 1878 synapsid
AMNH 4110 (type)
"Dimetrodon rectiformis n. sp." = Dimetrodon limbatus Cope 1877 synapsid
 Synapsida - Ophiacodontidae
"Theropleura retroversa n. sp." = Ophiacodon retroversus, "Ophiacodon retroversus" = Ophiacodon retroversus3, "Theropleura triangulata n. sp." = Ophiacodon retroversus3
"Theropleura retroversa n. sp." = Ophiacodon retroversus Cope 1878 ophiacodont
AMNH 4167 (formerly 1111) "paratype" at loc. 12, T. grandis n. sp. "record doubtful" (Romer 1928); type locality of T. grandis is Beaver Creek (Willbarger Co.)
"Ophiacodon retroversus" = Ophiacodon retroversus3 Cope 1878 ophiacodont
AMNH 4007 (part), 4026 (part)
"Theropleura triangulata n. sp." = Ophiacodon retroversus3 Cope 1878 ophiacodont
AMNH 4166 (formerly 1107, type); "locality uncertain"
 Cotylosauria -
"Tomicosaurus" sp. Case 1907 tetrapod
Incertae sedis (Romer 1928)
 Cotylosauria - Diadectidae
"Diadectes sideropelicus n. gen. n. sp." = Diadectes sideropelicus, "Diadectes biculminatus n. sp." = Diadectes sideropelicus2, "Empedias alatus n. gen. n. sp." = Diadectes sideropelicus
"Diadectes sideropelicus n. gen. n. sp." = Diadectes sideropelicus Cope 1878 tetrapod
Authority is not Romer 1928. 5 Diadectes specimens total.
"Diadectes biculminatus n. sp." = Diadectes sideropelicus2 Cope 1878 tetrapod
"Empedias alatus n. gen. n. sp." = Diadectes sideropelicus Cope 1878 tetrapod
Authority is not Romer 1928.