Bean Creek 2 (Miocene of the United States)

Also known as UCMP V-5555, M1036

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• coordinate based on unpublished field data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)

• lower part of the Santa Margarita Formation; age after Scheirer and Magoon 2007

• formation-level stratigraphic resolution

Environment/lithology: shoreface; coarse-grained, conglomeratic sandstone

• shoreface to barrier beach, evidence of hypersaline lagoon, "catastrophic conditions" caused deposition of sand body, slopes down into muddy shelf bay
• coase conglomeratic sandstone bed

Size class: macrofossils

Preservation: original phosphate

Reposited in the UCMP

Collection methods: sieve,

Primary reference: L. G. Barnes. 1978. A review of Lophocetus and Liolithax and their relationships to the delphinoid family Kentriodontidae (Cetacea: Odontoceti). Bulletin of the Natural History Museum of Los Angeles County 28:1-35 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46070: authorized by Mark Uhen, entered by Mark Uhen on 29.12.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chondrichthyes
 Odontaspidida - Isuridae
"Isurus planus" = Oxyrhina plana1
"Isurus planus" = Oxyrhina plana1 Agassiz 1856 mackerel shark
 Lamniformes - Otodontidae
"Carcharodon megalodon" = Otodus megalodon1
"Carcharodon megalodon" = Otodus megalodon1 Agassiz 1843 megalodon
 Lamniformes - Lamnidae
"Isurus hastalis" = Carcharodon hastalis1
"Isurus hastalis" = Carcharodon hastalis1 Agassiz 1843 white shark
 Lamniformes - Odontaspididae
Odontaspis sp.1 Agassiz 1843 sand tiger shark
 Carchariniformes - Carcharhinidae
Galeocerdo sp.1 Müller and Henle 1837 tiger shark
Carcharhinus sp.1 de Blainville 1816 requiem shark
Mammalia
 Sirenia - Dugongidae
Dusisiren jordani1 Kellogg 1925 dugong
 Perissodactyla - Desmostylidae
Desmostylus sp. Marsh 1888 desmostylian
Desmostylus hesperus3 Marsh 1888 desmostylian
 Perissodactyla - Paleoparadoxiidae
Paleoparadoxia tabatai3 Tokunaga 1939 desmostylian
 Perissodactyla - Equidae
"Hipparion cf. mohavense" = Cormohipparion occidentale2
"Hipparion cf. mohavense" = Cormohipparion occidentale2 Leidy 1856 hipparionine horse
 Carnivora - Otariidae
Otariidae indet.1 eared seal
Pithanotaria starri2 Kellogg 1925 eared seal
 Carnivora - Desmatophocidae
Allodesmus sp. Kellogg 1922 pinniped
 Artiodactyla - Camelidae
Camelidae indet.1 Gray 1821 camel
 Mysticeti -
Mysticeti indet.1 Cope 1891 whale
 Odontoceti -
Liolithax sp. Kellogg 1931 toothed whale