Hintze faunule J-16 from Ibex (Ordovician of the United States)

Where: Utah (38.9° N, 113.5° W: paleocoordinates 7.4° S, 83.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Wah Wah Formation (Pogonip Group), Blackhillsian (474.9 - 470.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified, silty grainstone

• Multiple sources indicate that this was a carbonate dominated ramp, with substantial siliciclastic input, below normal wave base, above storm wave base.
• Calcisilite, silty, massive ledge forming.

Preservation: original silica, replaced with silica

Primary reference: L. F. Hintze. 1953. Lower Ordovician trilobites from western Utah and eastern Nevadea. Utah Geological and Mineralogical Survey Bulletin 48:249 p. [A. Miller/A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 63932: authorized by Arnold Miller, entered by Arnold Miller on 25.08.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• The faunal lists in Hintze 1952 are updated versions of those in Hintze 1951 and, so, are used here.
Show authors, comments, and common names
Trilobita
 Phacopida - Pliomeridae
Pseudomera sp.
Pseudomera sp. Holliday 1942 trilobite
 Proetida - Bathyuridae
"Goniotelus wahwahensis" = Acidiphorus wahwahensis
"Goniotelus wahwahensis" = Acidiphorus wahwahensis Hintze 1953 trilobite
Cephalopoda
 Endocerida - Endoceratidae
Endoceras sp.
Endoceras sp. Hall 1847
Demospongiae
 Lithistida - Anthaspidellidae
? Zittelella sp.
? Zittelella sp. Ulrich and Everett 1889 demosponge