Yangjuan Village, Xinmin District (Triassic of China)

Where: Guizhou, China (25.5° N, 104.8° E: paleocoordinates 11.7° N, 94.2° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Nicoraella germanicus conodont zone, Guanling Formation, Pelsonian (247.2 - 242.0 Ma)

• "The fossil-bearing horizon, about 15 cm in thickness, lies immediately below a layer of white clay (ca. 5 cm thick, representing a marker bed for the most fossiliferous horizon). This marker bed is situated within the upper member of the Guanling Formation"

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected in 2003-2008; reposited in the IVPP

Collection methods: chemical, mechanical

Primary reference: D.-Y. Jiang, L. Schmitz, R. Motani, W.-C. Hao, and Y.-L. Sun. 2007. The mixosaurid ichthyosaur Phalarodon cf. P. Fraasi from the Middle Triassic of Guizhou Province, China. Journal of Paleontology 81(3):602-605 [M. Carrano/H. Street]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 103987: authorized by Matthew Carrano, entered by Hallie Street on 04.02.2011, edited by Graeme Lloyd and Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Placodontia - Placodontidae
Placodus inexpectatus n. sp.2 Jiang et al. 2008 placodont
GMPKU-P-1054 (holotype), nearly complete skeleton
 Eosauropterygia - Nothosauridae
Nothosaurus yangjuanensis n. sp.1 Jiang et al. 2006 diapsid
GMPKU-P-1080
 Eosauropterygia -
Wumengosaurus delicatomandibularis3 Jiang et al. 2008 diapsid
GMPKU-P-1210, 1209, NMNS-KIKO-F071129-Z, IVPP V15314, ZMNH M8758
 Ichthyosauria - Mixosauridae
Phalarodon cf. fraasi Merriam 1910 ichthyosaur
GMPKU-P-1032