Bean Creek 1 (Miocene of the United States)

Also known as UCMP V-4004, USGS M1104

Where: Santa Cruz County, California (37.1° N, 122.0° W: paleocoordinates 36.5° N, 119.2° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

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

• Clarendonian (Tortonian)

Environment/lithology: shoreface; coarse-grained sandstone and silty shale

• shoreface to barrier beach, evidence of hypersaline lagoon, "catastrophic conditions" caused deposition of sand body, slopes down into muddy shelf bay
• found in coarse sands 50 feet above an unconormable contact with siliceous shales and 240 feeth below a zone of Astropodapsis cf. californicus

Size class: macrofossils

Preservation: original phosphate

Reposited in the UCMP

Collection methods: quarrying,

Primary reference: R. H. Reinhart. 1959. A review of the Sirenia and Desmostylia. University of California Publications in Geological Sciences 36(1):1-146 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40514: authorized by Mark Uhen, entered by Mark Uhen on 24.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Desmostylidae
Desmostylus sp.1 Marsh 1888 desmostylian
 Perissodactyla - Paleoparadoxiidae
Paleoparadoxia tabatai2 Tokunaga 1939 desmostylian
 Perissodactyla - Equidae
Hipparion cf. forcei3 Richey 1948 hipparionine horse
 Carnivora - Odobenidae
Imagotaria downsi3 Mitchell 1968 walrus
 Sirenia - Dugongidae
Dusisiren jordani1 Kellogg 1925 dugong
 Balaenopteroidea - Balaenopteridae
Balaenopteridae indet.1 Gray 1864 rorqual