Where: Guangxi, China (25.0° N, 110.0° E: paleocoordinates 0.3° N, 125.9° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Sipai Formation, Late/Upper Emsian (402.5 - 391.9 Ma)

• 90 m thick. [JA: originally entered as Emsian; Polygnathus inversus and P. serotinus are present in the lowest unit, so the entire formation is late Emsian]

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray, argillaceous, calcareous shale and limestone

Size class: macrofossils

Primary reference: R. Zhang and J. Pojeta, Jr. 1986. Devonian sections in Guangxi from which pelecypods were collected. Devonian rocks and Lower and Middle pelecypods of Guangxi, China and the Traverse Group of Michigan. United States Geological Survery Professional Paper 1394(E):33-43 [J. Alroy/M. Sommers] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 4796: authorized by John Alroy, entered by Mike Sommers on 24.08.1999, edited by Austin Hendy

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)