El Toro: Hemphillian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Delphinidae indet. Gray 1821
Barnes 1977
LACM 52147
    = Odontoceti indet.
Murakami et al. 2014
Mammalia - Sirenia - Dugongidae
Dioplotherium allisoni (Kilmer 1965)
Domning 1978
Mammalia - Carnivora - Canidae
    = Borophagus sp. Cope 1892
Alroy 2002
Mammalia - Cetacea
Mysticeti indet. Cope 1891
Barnes 1977
LACM 40930, 66321
Odontoceti indet. Flower 1867
Barnes 1977
LACM 27289, 62300, 65674
Mammalia - Cetacea - Ziphiidae
Ziphiidae indet. Gray 1850
Barnes 1977
LACM 52148
Mammalia - Cetacea
Liolithax sp. Kellogg 1931
Barnes 1977
LACM 30160
Mammalia - Cetacea - Monodontidae
Delphinapterinae indet. Gill 1871
Barnes 1977
LACM 27290
Mammalia - Cetacea - Phocoenidae
Loxolithax stocktoni Wilson 1973
Barnes 1977
recombined as Salumiphocaena stocktoni
LACM 65668-65673
Mammalia - Cetacea
aff. Pithanodelphis sp. Abel 1905
Barnes 1977
LACM 26635, 29087, 30093)
Mammalia - Cetacea - Kentriodontidae
aff. Kampholophos sp. Rensberger 1969
Barnes 1977
LACM 65677, 65678
Mammalia - Cetacea
Scaldicetus sp. Du Bus 1867
Barnes 1977
LACM 4088, 65653-65663
Mammalia - Perissodactyla - Equidae
Pliohippus sp. Marsh 1874
Bivalvia - Pholadida - Myidae
Mya dickersoni Clark 1915
Domning 1978
recombined as Mya (Arenomya) dickersoni
Bivalvia - Cardiida - Mactridae
Pseudocardium densatum (Conrad 1856)
Domning 1978
Bivalvia - Cardiida - Tellinidae
Macoma secta (Conrad 1837)
Domning 1978
recombined as Rexithaerus secta
Bivalvia - Pectinida - Pectinidae
Pecten (Lyropecten) crassicardo (Conrad 1856)
Arnold 1906
recombined as Lyropecten crassicardo
Pecten (Lyropecten) estrellanus (Conrad 1856)
Arnold 1906
recombined as Nodipecten estrellanus
see common names

Geography
Country:United States State/province:California County:Orange
Coordinates: 33.6° North, 117.8° West (view map)
Paleocoordinates:33.2° North, 115.3° West
Basis of coordinate:based on political unit
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
*Period:Tertiary *Epoch:Miocene
*Local age/stage:Hemphillian
Key time interval:Hemphillian
Age range of interval:9.40000 - 4.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Monterey
Stratigraphy comments: said to be Hemphillian, Barnes (1977) clarifies that the formation at this locality is Monterey not Capistrano as originally stated by Savage and Barnes (1972).
Lithology and environment
Primary lithology: "shale"
Includes fossils?Y
Environment:marginal marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:19342
Authorizer:J. Alroy, M. Uhen Enterer:J. Alroy, M. Uhen
Modifier:M. Uhen Research group:vertebrate
Created:1995-03-26 00:00:00 Last modified:2020-03-18 18:19:01
Access level:the public Released:1995-03-26 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1257. S. W. Conkling. 1991. Report on a new Hemphillian (Miocene) fauna from the El Toro area of Orange County, California, and a comparison of it with Hemphillian faunas from the Mojave Desert. San Bernardino County Museum Association Quarterly 38(2):1-46 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
71229 R. Arnold. 1906. Tertiary and Quaternary pectens of California. USGS Professional Paper 47:1-264 [M. Uhen/M. Uhen]
12297 L. G. Barnes. 1977. Outline of eastern North Pacific fossil cetacean assemblages. Systematic Zoology 25(4):321-343 [M. Uhen/M. Uhen/M. Uhen]
60295% 34240D. 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]
51115 M. Murakami, C. Shimada, Y. Hikidad, Y. Soedae, and H. Hirano. 2014. Eodelphis kabatensis, a new name for the oldest true dolphin Stenella kabatensis Horikawa, 1977 (Cetacea, Odontoceti, Delphinidae), from the upper Miocene of Japan, and the phylogeny and paleobiogeography of Delphinoidea. Journal of Vertebrate Paleontology 34(3):491-511 [M. Uhen/M. Uhen]