D-12 (Ordovician of the United States)

Also known as SF 298

Where: Millard County, Utah (38.9° N, 113.4° W: paleocoordinates 6.9° S, 84.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: G-2 trilobite zone, Fillmore Limestone Formation, Tulean (480.8 - 474.9 Ma)

• Ibexian; Tulean

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified sandstone

• carbonate ramp, above wave base
• fine; grey; calcareous; abundant intraformational conglomerates

Size class: macrofossils

Preservation: replaced with silica

Collected by L.F. Hintze

Collection methods: bulk,

Primary reference: L.F. Hintze. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin 39:99 p. [A. Miller/A. Miller]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104083: 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
Trilobita
 Phacopida - Pliomeridae
"Protopliomerops cf. contracta" = Protopliomerella contracta
"Protopliomerops cf. contracta" = Protopliomerella contracta Ross 1951 trilobite
 Proetida - Bathyuridae
Licnocephala ? bicornuta
Licnocephala ? bicornuta Ross 1951 trilobite
 Asaphida - Asaphidae
"? Pseudonileus sp." = Protopresbynileus, Kirkella fillmorensis
"? Pseudonileus sp." = Protopresbynileus Hintze 1954 trilobite
Kirkella fillmorensis Hintze 1953 trilobite