ammonites
Jushui sponge mounds (Triassic of China)

Also known as Reef 8

Where: Sichuan, China (31.5° N, 104.2° E: paleocoordinates 26.4° N, 83.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Member (Hanwang Formation), Carnian (235.0 - 221.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified bafflestone

• deep-water mounds
• elliptical reef mounds with longitudinal axes of 100 m or more and somewhat narrower widths of about 60 m at their bases, 40-60 m high; intereef distances between the isolated patch reefs range from 100 m to 2 km; reef core: sponge bafflestones

Size classes: macrofossils, mesofossils, microfossils

Collection methods: Data from sponge mound and intermound facies

Primary reference: X. Wu. 1989. Carnian (Upper Triassic) sponge mounds of the northwestern Sichuan Basin, China: Stratigraphy, facies and paleoecology. Facies 21:171-188 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 25405: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 11.09.2002, edited by Uta Merkel