D 208a CO (Ordovician of the United States)

Also known as SF 423

Where: Cache County, Utah (41.7° N, 111.8° W: paleocoordinates 8.0° S, 79.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Pseudocybele nasuta trilobite zone, Upper Member (Garden City Formation), Cassinian (482.3 - 470.0 Ma)

• Ibexian Zone J.

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

• carbonate ramp, above wave base
• no section accompanies report; see Ross 1951 for sections of Garden City

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: bulk,

Primary reference: R. J., J.r. Ross. 1968. Brachiopods from the Upper Part of the Garden City Formation (Ordovician) North-Central Utah. United States Geological Survey Professional Paper 593-H [S. Finnegan/S. Finnegan/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104062: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Billingsellida - Polytoechiidae
Tritoechia loganensis
Rhynchonellata
 Pentamerida - Tetralobulidae
Syntrophopsis cf. polita
 Orthida - Hesperonomiidae
Hesperonomia fontinalis
 Orthida - Finkelnburgiidae
Diparelasma rowelli, Diparelasma sp.
Diparelasma sp. Ulrich and Cooper 1936
Trilobita
 Asaphida - Asaphidae
Isoteloides sp., Lachnostoma sp.
Isoteloides sp. Raymond 1910 trilobite
Lachnostoma sp. Ross 1951 trilobite
 Proetida - Bathyuridae
Goniotelina cf. brevis
Goniotelina cf. brevis Hintze 1953 trilobite
Radiocyatha
  - Soanitidae
Calathium sp.
Calathium sp. Billings 1865