Ibex, Hintze's H section, Fillmore sponge mounds ( of the United States)

Also known as Reef 2968

Where: Millard County, Utah (38.8° N, 113.5° W: paleocoordinates 6.7° S, 84.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Fillmore Formation (Pogonip Group), Ibexian (487.5 - 470.0 Ma)

• group of beds-level stratigraphic resolution

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

• Calathium-sponge mounds

Size class: macrofossils

Primary reference: R. A. Johns. 1994. Ordovician lithistid sponges of the Great Basin. Nevada Bureau of Mines and Geology Open-File Report 94(1):1-156 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119446: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongiae
 Lithistida - Anthaspidellidae
Colinispongia regularis Johns 1994 demosponge
 Lithistida - Streptosolenidae
Lissocoelia cylindrica Johns 1994 demosponge
Radiocyatha
  - Soanitidae
Calathium sp. Billings 1865