Beishan Hills, Quarry 3, Subei County (Triassic of China)

Where: Gansu, China (42.0° N, 96.5° E: paleocoordinates 32.8° N, 85.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Hongyanjing Formation, Olenekian (251.2 - 247.2 Ma)

• Olenekian age is based upon vertebrate and plant biostratigraphy

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified shale

Size class: macrofossils

Collection methods: quarrying,

• PKUP: Peking University Paleontological Collections, Beijing

Primary reference: K.-Q. Gao, R. C. Fox, C.-F. Zhou and D.-Q. Li. 2010. A new nonmammalian eucynodont (Synapsida: Therapsida) from the Triassic of northern Gansu Province, China, and its biostratigraphic and biogeographic implications. American Museum Novitates 3685:1-25 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105775: authorized by Matthew Clapham, entered by Matthew Clapham on 25.02.2011, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perleidiformes - Perleididae
Perleidus sp. de Alessandri 1910
 Ptycholepiformes - Ptycholepididae
Boreosomus sp. Stensiƶ 1921
 Scanilepiformes -
Beishanichthys brevicaudalis n. gen. n. sp. Xu and Gao 2011
 Therapsida - Traversodontidae
Beishanodon youngi n. gen. n. sp.
Beishanodon youngi n. gen. n. sp. Gao et al. 2010 therapsid
PKUP V3007, incomplete skull (holotype)
 Equisetales - Calamitaceae
Neocalamites sp. Halle 1908