Lawrence Canyon: Messinian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Lamniformes - Otodontidae
Pimiento and Balk 2015
locality LACM 4297 SDNHM 3149
Mammalia - Carnivora - Mustelidae
Berta and Morgan 1985
"Lawrence Canyon local fauna," Oceanside, San Mateo Co. (1 measurement)
Mammalia - Cetacea - Monodontidae
Barnes and Deméré 1991 1 specimen
closest relative is Denebola brachycephala
Mammalia - Camelidae
Mammalia - Tayassuidae
Reptilia - Charadriiformes - Alcidae
Smith 2011 1 specimen
locality SDSNH 3177
see common names

Geography
Country:United States State/province:California County:San Diego
Coordinates: 33.2° North, 117.4° West (view map)
Paleocoordinates:
Basis of coordinate:based on political unit
Time
Period: Neogene Epoch: Miocene
Stage: Messinian 10 m.y. bin: Cenozoic 6
*Period:Tertiary
Key time interval: Messinian
Age range of interval: 7.246 - 5.333 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:San Mateo Member:upper gravel conglomerate unit
Local section:Mateo Local bed:2
Local order:bottom to top
Stratigraphy comments: Messinian age added later by M. D. Uhen
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:member-level composite list; may include LACM 4301 (=UCMP V68106) and UCMP 6880
"Dinohippus (or possibly Pliohippus)" could be from this level)
Metadata
Database number:19421
Authorizer:J. Alroy, M. Uhen, C. Jaramillo Enterer:J. Alroy, M. Uhen, C. Pimiento
Modifier:M. Uhen Research group:vertebrate
Created:1994-04-30 00:00:00 Last modified:2025-02-22 15:12:02
Access level:the public Released:1994-04-30 00:00:00
Creative Commons license:CC0
Reference information

Primary reference:

1369. D. P. Domning and T. A. Deméré. 1984. New material of Hydrodamalis cuestae (Mammalia: Dugongidae) from the Miocene and Pliocene of San Diego County, California. Transactions of the San Diego Society of Natural History 20(12):169-188 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

24284 L. G. Barnes and T. A. Deméré. 1991. A new beluga-like monodontid (Mammalia: Cetacea) from the late Miocene San Mateo Formation at Oceanside, California. Journal of Vertebrate Paleontology 11(3):15A [M. Uhen/M. Uhen/M. Uhen]
1066 A. Berta and G. S. Morgan. 1985. A new sea otter (Carnivora: Mustelidae) from the late Miocene and early Pliocene (Hemphillian) of North America. Journal of Paleontology 59(4):809-819 [J. Alroy/J. Alroy/M. Uhen]
49081 C. Pimiento and M. Balk. 2015. The extinct giant shark Carcharocles megalodon: A model for understanding deep-time body size trends of marine apex predators. [C. Jaramillo/C. Pimiento/C. Pimiento]
38584 N. A. Smith. 2011. Taxonomic revision and phylogenetic analysis of the flightless Mancallinae (Aves, Pan-Alcidae). ZooKeys 91:1-116 [M. Uhen/M. Uhen]