Where: Hunan, China (25.7° N, 112.5° E: paleocoordinates 8.9° N, 100.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Changxing Formation, Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: G. H. Xu. 1977. Cephalopoda. Palaeontological Atlas of South-Central China 2:537-582 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124023: authorized by Matthew Clapham, entered by Matthew Clapham on 06.02.2012

Creative Commons license: CC BY (attribution)