Springtown local fauna (Cretaceous of the United States)

Where: Parker County, Texas (32.9° N, 97.7° W: paleocoordinates 30.4° N, 57.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Middle Member (Paluxy Formation), Albian (113.0 - 100.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: mesofossils

Primary reference: J. T. Thurmond. 1971. Cartilaginous fishes of the Trinity Group and related rocks (Lower Cretaceous) of north central Texas. Southeastern Geology 13:207-227 [M. Carrano/M. Carrano/M. Oreska]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 99143: authorized by Matthew Carrano, entered by Matthew Oreska on 29.10.2010, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Polyacrodontidae
"Hybodus cf. brevicostatus" = Polyacrodus brevicostatus, "Hybodus aff. parvidens" = Polyacrodus parvidens
"Hybodus cf. brevicostatus" = Polyacrodus brevicostatus Patterson 1966 elasmobranch
"Hybodus aff. parvidens" = Polyacrodus parvidens Woodward 1916 elasmobranch
 Rajiformes -
"Hypolophus mcnultyi n. sp." = Pseudohypolophus mcnultyi
"Hypolophus mcnultyi n. sp." = Pseudohypolophus mcnultyi Thurmond 1971 guitarfish
 Lamniformes - Pseudoscapanorhynchidae
"Lamna aff. sulcata" = Cretodus semiplicatus
"Lamna aff. sulcata" = Cretodus semiplicatus Agassiz 1843 mackerel shark
Actinopteri
 Pycnodontiformes - Pycnodontidae
Palaeobalistum rectidens Thurmond 1974
SMUSMP 62108-62113
Callodus coronatus Thurmond 1974
SMUSMP 62088
Macromesodon dumblei
SMUSMP 62102, 62103
Coelodus sp. Haeckel
SMUSMP 62269
 Lepisosteiformes -
Lepidotes sp. Agassiz 1832 gar