Punta Pequena: Langhian - Serravallian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
cf. Dermatochelidae indet.
Domning 1978
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Domning 1978
Bivalvia - Lucinida - Lucinidae
Lucina sp. Bruguière 1797
Domning 1978
Bivalvia - Cardiida - Veneridae
Chione sp. von Mühlfield 1811
Domning 1978
Echinoidea - Clypeasteroida - Dendrasteridae
cf. Merriamaster pacificus (Kew 1920)
Domning 1978
original and current combination Dendraster pacificus
Chondrichthyes - Myliobatiformes - Myliobatidae
Myliobatis sp. Cuvier 1816
Domning 1978
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
Domning 1978
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Negaprion sp. Whitley 1940
Domning 1978
Carcharhinus sp. de Blainville 1816
Domning 1978
Chondrichthyes - Carcharhiniformes - Hemigaleidae
Hemipristis serra Agassiz 1835
Domning 1978
Chondrichthyes - Carcharhiniformes - Galeocerdidae
Galeocerdo aduncus (Agassiz 1835)
Domning 1978
Chondrichthyes - Lamniformes - Lamnidae
Isurus sp. Rafinesque 1810
Domning 1978
Chondrichthyes - Lamniformes - Alopiidae
Alopias sp. Rafinesque 1810
Domning 1978
Chondrichthyes - Lamniformes - Cetorhinidae
Cetorhinus sp. de Blainville 1816
Domning 1978
Chondrichthyes - Lamniformes - Otodontidae
Carcharodon megalodon (Agassiz 1835)
Domning 1978
recombined as Otodus megalodon
Mammalia - Perissodactyla - Desmostylidae
Desmostylus hesperus Marsh 1888
Domning 2008
Mammalia - Sirenia - Dugongidae
Dusisiren reinharti n. sp. Domning 1978
Domning 1978 1 specimen
Actinopteri - Tetraodontiformes
Oligodiodon cf. vetus
Domning 1978
Actinopteri - Carangiformes - Carangidae
cf. Caranx sp. Lacépède 1802
Domning 1978
see common names

Geography
Country:Mexico State/province:Baja California Sur
Coordinates: 26.2° North, 112.5° West (view map)
Paleocoordinates:25.6° North, 108.0° West
Basis of coordinate:unpublished field data
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
*Period:Middle Tertiary *Epoch:Middle Miocene
*International age/stage:Langhian - Serravallian *Local age/stage:Vaquerosian - Temblorian
Key time interval:Langhian - Serravallian
Age range of interval:15.97000 - 11.62000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Ysidro
Lithology and environment
Primary lithology:gray sandstone
Lithology description: gray sandstone, in blocky blue clay, specimens in gray sand lenses in clay
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Associated major elements:some
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: near ocean shore two or three feet above ocean level
Metadata
Also known as:UCMP V5023
Database number:13450
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:M. Uhen Research group:marine invertebrate,vertebrate
Created:2002-03-22 12:01:12 Last modified:2019-05-28 19:23:35
Access level:the public Released:2002-03-22 12:01:12
Creative Commons license:CC BY
Reference information

Primary reference:

10903. R. H. Reinhart. 1959. A review of the Sirenia and Desmostylia. University of California Publications in Geological Sciences 36(1):1-146 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

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]
30424 D. P. Domning. 2008. Desmostylia. In C. M. Janis, G. F. Gunnell, M. D. Uhen (eds.), Evolution of Tertiary Mammals of North America, Volume II 640-645 [M. Uhen/M. Uhen]
43625% 35260D. Gondar. 1974. La presencia de cetaceos Physteridae en el Terciario Superior ("Rionegrense") de la Provincia de Rio Negro. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia 2:349-356 [M. Uhen/M. Uhen/J. Alroy]