Lawrence Canyon 3: Zanclean, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Hexacanthus sp.
aff. Stenodelphis sternbergi Gregory and Kellogg 1927
    = Odontoceti indet.
Barnes 1985
Barnes does not include this specimen in his reference list in Barnes 1985, so it is unclear what this specimen represents.
Actinopteri
Teleostei indet. Müller 1846
Actinopteri - Salmoniformes - Salmonidae
Smilodonichthys rastrosus Cavender and Miller 1972
recombined as Oncorhynchus rastrosus
Actinopteri - Labriformes - Labridae
cf. Pimelometopon sp. Gill 1864
synonym of Semicossyphus
Mammalia - Sirenia - Dugongidae
Hydrodamalis cuestae Domning 1978
Mammalia - Carnivora - Otariidae
Otariinae indet. Gray 1825
Mammalia - Carnivora - Odobenidae
Odobeninae indet. Allen 1880
Mammalia - Cetacea
Mysticeti indet. Cope 1891
Mammalia - Cetacea - Cetotheriidae
Nannocetus sp. Kellogg 1929
Mammalia - Cetacea
Odontoceti indet. Flower 1867
Mammalia - Cetacea - Phocoenidae
Phocoenidae indet. (Gray 1825)
Mammalia - Cetacea - Delphinidae
Delphinidae indet. Gray 1821
Mammalia - Cetacea
Scaldicetus cf. grandis (Du Bus 1872)
Mammalia - Camelidae
Camelidae indet. Gray 1821
Mammalia - Perissodactyla - Equidae
Pliohippus sp. Marsh 1874
possibly Dinohippus
    = Equini indet. Quinn 1955
Alroy 2011
Reptilia
Aves indet. Linnaeus 1758
Domning 1978
Reptilia - Accipitriformes - Accipitridae
Accipitridae indet. Viellot 1816
Reptilia - Charadriiformes
Mancalla diegensis (Miller 1937)
Howard 1982
nomen dubium belonging to Panalcidae
Mancalla milleri Howard 1970
Howard 1982
nomen dubium belonging to Panalcidae
Reptilia - Charadriiformes - Alcidae
Mancalla sp. Lucas 1901
Mancalla cf. cedrosensis Howard 1971
Howard 1982
Cepphus sp. Moehring 1758
Howard 1982
Reptilia - Suliformes - Sulidae
Sulidae indet. Reichenbach 1849
Howard 1982
Chondrichthyes - Squatinidae
Squatina sp. Dumeril 1806
Chondrichthyes - Lamniformes - Otodontidae
Carcharodon megalodon (Agassiz 1835)
recombined as Otodus megalodon
Also studied in Pimiento and Balk
Chondrichthyes - Lamniformes - Lamnidae
Isurus cf. oxyrhynchus (Rafinesque 1810)
original and current combination Isurus oxyrinchus
Carcharodon sulcidens (Agassiz 1835)
synonym of Carcharodon carcharias
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Carcharhinus sp. de Blainville 1816
Prionace sp. Cantor 1849
Chondrichthyes - Squalomorphii - Pristiophoridae
Pristiophorus sp. Bleeker 1859
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatidae indet. Jordan 1888
Chondrichthyes - Myliobatiformes
Myliobatoidea indet.
Chondrichthyes - Chimaeriformes - Chimaeridae
Chimaeridae indet.
see common names

Geography
Country:United States State/province:California County:San Diego
Coordinates: 33.2° North, 117.4° West (view map)
Paleocoordinates:33.0° North, 116.1° West
Basis of coordinate:unpublished field data
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Zanclean 10 m.y. bin:Cenozoic 6
Key time interval:Zanclean
Age range of interval:5.33300 - 3.60000 m.y. ago
Age estimate:5.33 to 4.6 Ma (other)
Stratigraphy
Formation:San Mateo
Stratigraphic resolution:formation
Stratigraphy comments: Hemphillian: Domning (1978) states the age of this collection is "Middle Pliocene"
Lithology and environment
Primary lithology: sandstone
Secondary lithology: conglomerate
Includes fossils?Y
Environment:estuary/bay
Geology comments: estuarine to fluvial
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:LACM,UCMP
Taxonomic list comments:Lawrence Canyon Local Fauna
Metadata
Also known as:LACM 4301, UCMP V68106, SDSNH 2643
Database number:50068
Authorizer:M. Uhen, J. Alroy Enterer:M. Uhen, J. Alroy
Modifier:M. Uhen Research group:vertebrate
Created:2005-05-05 12:15:58 Last modified:2019-02-19 12:26:47
Access level:the public Released:2005-05-05 12:15:58
Creative Commons license:CC BY
Reference information

Primary reference:
13448. L. G. Barnes, H. Howard, J. H. Hutchison and B. J. Welton. 1981. The vertebrate fossils of the marine Cenozoic San Mateo Formation at Oceanside, California. Geologic Investigations of the Coastal Plain 53-70 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

35631 J. Alroy. 2011. Further attempts at halting the inevitable backwards progress of bad taxonomy. [J. Alroy/J. Alroy]
11877 L. G. Barnes. 1985. Fossil pontoporiid dolphins (Mammalia: Cetacea) from the Pacific Coast of North America. Contributions in Science 363:1-34 [M. Uhen/M. Uhen/M. Uhen]
13595 R. W. Boessenecker, D. J. Eheret, D. J. Long, M. Churchill, E. Martin and S. J. Boessenecker. 2019. The Early Pliocene extinction of the mega-toothed shark Otodus megalodon: a view from the eastern North Pacific. PeerJ 7:e6088 [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]
1945 H. Howard. 1982. Fossil birds from Tertiary marine beds at Oceanside, San Diego County, California, with discriptions of two species of the genera Uria and Cepphus (Aves: Alcidae). Contributions in Science, Natural History Museum of Los Angeles County 341:1-15 [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]