Hanwang sponge patch reefs (Triassic of China)

Also known as Reef 3126

Where: Sichuan, China (31.5° N, 104.2° E: paleocoordinates 25.8° N, 83.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hanwang Formation, Carnian (237.0 - 228.0 Ma)

• upper Hanwang Formation

• 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 class: macrofossils

Primary reference: J. K. Rigby, X. Wu, and J. Fan. 1998. Triassic hexactinellid sponges from patch reefs in north-central Sichuan, People's Republic of China. Brigham Young University Geology Studies 43:119-165 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117022: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hexactinellida
 Hexactinosa - Cribrospongiidae
Nelumbifolium pectiniforme, Tesselospongia fistulosa n. gen. n. sp.
Nelumbifolium pectiniforme Wu 1990 glass sponge
Tesselospongia fistulosa n. gen. n. sp. Rigby et al. 1998 glass sponge
 Hexactinosa - Euretidae
Radioplica stephana
Radioplica stephana Wu 1990 glass sponge
 Innaecoeliida - Craticulariidae
Dracolychnos annulirotatus, Casearia decursiva, Casearia oblata, Casearia articulata, Sphenaulax infundibuliforma
Dracolychnos annulirotatus Wu and Xiao 1989 glass sponge
Casearia decursiva Wu 1990 glass sponge
Casearia oblata Wu 1990 glass sponge
Casearia articulata Schmidel 1780 glass sponge
Sphenaulax infundibuliforma Rigby et al. 1998 glass sponge
 Amphidiscosa - Pelicaspongiidae
Keriogastrospongia phialoides
Keriogastrospongia phialoides Wu 1989 glass sponge