Blacksmith Fork Altiocculus Subzone (Cambrian of the United States)

Also known as LACMIP 16998, 16999, 17000, 17001 combined

Where: Utah (41.6° N, 111.8° W: paleocoordinates 5.7° S, 89.6° W)

• coordinate estimated from map

When: Ute Limestone Formation, Middle Cambrian (509.0 - 497.0 Ma)

• Altiocculus Biozone of Marjuman Stage

• group of beds-level stratigraphic resolution

Environment/lithology: marine; ooidal carbonate

• none

Reposited in the LACM

Collection methods: surface (in situ),

Primary reference: F. A. Sundberg. 1999. Redescription of Alokistocare subcoronatum (Hall and Whitfield, 1877), the type species of Alokistocare, and the status of Alokistocaridae Resser, 1939B (Ptychopariida: Trilobita, Middle Cambrian). Journal of Paleontology 73(6):1126-1143 [L. Ivany/L. Ivany]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64529: authorized by Linda Ivany, entered by Linda Ivany on 09.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• trilobites only
Trilobita
 Ptychopariida - Alokistocaridae
Alokistocare subcoronatum Hall and Whitfield 1877 trilobite
 Corynexochida - Dorypygidae
Kootenia quadriceps Hall and Whitfield 1877 trilobite