Fish Creek (Pliocene of the United States)

Also known as Anza-Borrego Desert State Park

Where: San Diego County, California (33.0° N, 116.0° W: paleocoordinates 32.9° N, 115.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Yuha Member (Deguynos Formation), Piacenzian (3.6 - 2.6 Ma)

• mid-Pliocene, 4.4 to 4.1 Ma

Environment/lithology: delta front; silty sandstone

• ancestral Colorado River delta
• delta front and delta plain sandstone beds

Primary reference: J. Atterholt, G. Jefferson, and E. Schachner. 2007. New marine vertebrates from the Yuha Member of the Deguynos Formation of Anza-Borrego Desert State Park. Journal of Vertebrate Paleontology 27(3):42A [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 75482: authorized by Mark Uhen, entered by Mark Uhen on 11.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Lamniformes - Odontaspididae
Odontaspis sp. Agassiz 1838 sand tiger shark
 Squaliformes - Squalidae
Squalus sp. Linnaeus 1758 dogfish shark
Actinopteri
 Istiophoriformes - Istiophoridae
Reptilia
 Testudines - Cheloniidae
"Chelonidae indet." = Cheloniidae
"Chelonidae indet." = Cheloniidae Bonaparte 1832 sea turtle
Mammalia
 Cetacea -
Odontoceti indet. Flower 1867 toothed whale
 Carnivora - Pinnipedia
 Carnivora - Odobenidae
Valenictus sp. Mitchell 1961 walrus
n. sp.?
 Sirenia - Dugongidae
Dugongidae indet. Gray 1821 dugong