Cammatti Ranch (Miocene of the United States)

Where: San Luis Obispo County, California (35.5° N, 120.3° W: paleocoordinates 35.0° N, 117.4° W)

• coordinate based on unpublished field data

When: Santa Margarita Formation, Tortonian (11.6 - 7.2 Ma)

• age after Scheirer and Magoon 2007

• formation-level stratigraphic resolution

Environment/lithology: shoreface; sandstone

• shoreface to barrier beach, evidence of hypersaline lagoon, "catastrophic conditions" caused deposition of sand body, slopes down into muddy shelf bay
• thin dark red-brown sandstone bed in the top of lower (nonmarine) thrid, or from base of overlying marine portion of Santa Margarita sandstone

Size class: macrofossils

Preservation: original phosphate

Primary reference: D. P. Domning. 1978. Sirenian evolution in the North Pacific Ocean. University of California Publications in Geological Sciences 118:1-176 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52202: authorized by Mark Uhen, entered by Mark Uhen on 01.08.2005, edited by John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Testudinidae
Testudininae indet. Gray 1825 turtle
Mammalia
 Sirenia - Sirenia
 Placentalia -
Carnivora indet. Bowdich 1821 carnivoran
 Perissodactyla - Equidae
Hipparionini indet. Quinn 1955 hipparionine horse
originally entered as "Hipparion indet."
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
 Cetacea -
Delphinoidea indet. Flower 1865 toothed whale
Mysticeti indet. Cope 1891 whale
 Artiodactyla - Antilocapridae
Merycodontinae indet. Matthew 1904 pronghorn
originally entered as "Merycodus indet."
Actinopteri
 Teleostei -
Chondrichthyes
 Squatiniformes - Squatinidae
Squatina sp. Dumeril 1806 angel shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo sp. Müller and Henle 1837 tiger shark
 Lamniformes - Lamnidae
Isurus sp. Rafinesque 1810 mackerel shark
 Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810 whiptail stingray
 Myliobatiformes -