Arroyo de la Purisimia: Middle Miocene, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Balanus gregarius
Bivalvia - Ostreida - Gryphaeidae
Ostrea loeli Hertlein 1928
recombined as Pycnodonte loeli
Bivalvia - Pectinida - Anomiidae
Anomia vaquerosensis Loel and Corey 1932
Bivalvia - Pectinida - Spondylidae
Spondylus perrini Wiedey 1928
Bivalvia - Pectinida - Pectinidae
Amusium lompocensis (Arnold 1906)
recombined as Amussium lompocensis
Lyropecten miguelensis (Arnold 1906)
Bivalvia - Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778
Bivalvia - Cardiida - Veneridae
Chione richthofeni Hertlein and Jordan 1927
recombined as Chione (Chionopsis) richthofeni
Bivalvia - Cardiida - Ungulinidae
Diplodonta sp. Bronn 1831
Gastropoda - Neogastropoda - Muricidae
Rapana vaquerosensis (Arnold 1908)
recombined as Califrapana vaquerosensis
Gastropoda - Neogastropoda - Olividae
Oliva sp. Bruguière 1789
Gastropoda - Epitoniidae
Epitonium (Asperiscala) sp. (de Boury 1909)
Gastropoda - Turritellidae
Turritella temblorensis Wiedey 1928
Turritella inezana Conrad 1857
subspecies bicarina
Turritella ocoyana Conrad 1855
subspecies wittichi
Mammalia - Sirenia - Dugongidae
Dioplotherium allisoni (Kilmer 1965)
Chondrichthyes - Lamniformes - Lamnidae
Carcharodon sp. Smith 1838
see common names

Geography
Country:Mexico State/province:Baja California
Coordinates: 26.3° North, 112.0° West (view map)
Paleocoordinates:25.8° North, 107.5° West
Basis of coordinate:stated in text
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Middle Miocene
Age range of interval:15.97000 - 11.60800 m.y. ago
Stratigraphy
Formation:Ysidro
Stratigraphic resolution:member
Stratigraphy comments: early middle Miocene, San Raymundo Formation of Mina (1957)
Lithology and environment
Primary lithology:brown,blue lithified calcareous sandstone
Includes fossils?Y
Lithology description: hard, limy bluish-brown sandstones with abundant marine inverts and bone
Environment:marine indet.
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:UCMP V5733
Database number:52181
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:M. Uhen Research group:marine invertebrate,vertebrate
Created:2005-07-29 12:53:22 Last modified:2019-05-28 19:25:46
Access level:the public Released:2005-07-29 12:53:22
Creative Commons license:CC BY
Reference information

Primary reference:

6029.5% 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]

Secondary references:

52088 L. G. Barnes. 2002. Evolutionary history of the fossil marine mammals of Mexico. In M. M. Ballesteros, J. A. Cabrales (eds.), Advances en los Estudios Paleomastozoologicos en Mexico 125-225 [M. Uhen/M. Uhen]