Daijiagou Section, Longtan Member 1 shellbed, Hechuan County (Permian of China)

Where: Sichuan, China (29.9° N, 106.5° E: paleocoordinates 4.7° N, 94.7° E)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Longtan Formation, Wuchiapingian (259.9 - 254.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified, argillaceous lime mudstone

• Gray calcareous mudstone to argillaceous limestone

Size class: macrofossils

Preservation: mold/impression

Primary reference: Z.-Q. Chen, M. J. Campi, G.R. Shi and K. Kaiho. 2005. Post-extinction brachiopod faunas from the Late Permian Wuchiapingian coal series of South China. Acta Palaeontologica Polonica 50(2):343-363 [D. Bottjer/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56610: authorized by David Bottjer, entered by Matthew Clapham on 21.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only includes brachiopods. Gastropods, bivalves, bryozoa, and echinoids are reported to be present but are not described.
 Productida - Aulostegidae
 Productida - Echinoconchidae
"Chengxianoproductus cf. changxingensis" = Chenxianoproductus changxingensis
"Chengxianoproductus cf. changxingensis" = Chenxianoproductus changxingensis Liao and Meng 1986
 Productida - Productidae
Niutoushania chongqingensis n. sp. Chen 2005
 Productida -
 Orthotetida - Derbyiidae
Derbyia acutangula Huang 1933
 Orthotetida - Meekellidae
Orthothetina ellipsoides Shen et al. 1992
 Spiriferinida - Paraspiriferinidae
 Spiriferida - Elythidae