White Owl Lake, stromatolite-microbial-sponge buildup (Cambrian of the United States)

Also known as Reef 3772

Where: Garfield County, Colorado (39.7° N, 107.3° W: paleocoordinates 10.0° S, 86.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Clinetop Member (Dotsero Formation), Sunwaptan (493.5 - 487.5 Ma)

• uppermost Clinetop bed

• bed-level stratigraphic resolution

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

• Girvanella-Tarthinia-sponge boundstone forms a veneer over the Girvanella stromatolites, thickness of stromatolite bed: 1.5 m

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: R. A. Johns, B. F. Dattilo, and B. Spincer. 2007. Neotype and redescription of the Upper Cambrian anthaspidellid sponge, Wilbernicyathus donegani Wilson, 1950. Journal of Paleontology 81(3):435-444 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81101: authorized by Wolfgang Kiessling, entered by Uta Merkel on 04.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Demospongiae
 Lithistida - Streptosolenidae
Wilbernicyathus donegani
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp.
Girvanella sp. Nicholson and Etheridge 1878
Chabakoviacea
  - Chabakoviacea
Tarthinia sp.
Tarthinia sp. Drozdova 1980