Las Tetas de Cabra Formation

The Las Tetas de Cabra Formation is a geologic formation in Mexico. It preserves fossils dating back to the Wasatchian of the Early Eocene period.[1]

Las Tetas de Cabra Formation
Stratigraphic range: Wasatchian
~55.8–50 Ma
TypeFormation
Lithology
PrimarySandstone
OtherSiltstone
Location
Coordinates28°42′N 114°06′W / 28.7°N 114.1°W / 28.7; -114.1
Approximate paleocoordinates31°06′N 97°00′W / 31.1°N 97.0°W / 31.1; -97.0
RegionBaja California
Country Mexico
Type section
Named forLoma las Tetas de Cabra
Las Tetas de Cabra Formation is located in Mexico
Las Tetas de Cabra Formation
Las Tetas de Cabra Formation (Mexico)

Fossil content

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The following fossils have been reported from the formation:[1]

Mammals

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Acreodi
Artiodactyls
Cimolesta
Didelphimorphia
Ferae
Glires
Hyaenodonta
Pantodonta
Perissodactyls
Placentalia
Theriiformes

Reptiles

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Amphibians

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Fish

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Invertebrates

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Gastropods

Flora

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Wasatchian correlations

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Wasatchian correlations in North America
Formation Wasatch DeBeque Claron Indian Meadows Pass Peak Tatman Willwood Golden Valley Coldwater Allenby Kamloops Ootsa Lake Margaret Nanjemoy Hatchetigbee Tetas de Cabra Hannold Hill Coalmont Cuchara Galisteo San Jose Ypresian (IUCS) • Itaboraian (SALMA)
Bumbanian (ALMA) • Mangaorapan (NZ)
Basin Powder River
Uinta
Piceance
Colorado Plateau
Wind River
Green River
Bighorn
Piceance




Colorado Plateau





Wind River





Green River






Bighorn
Williston Okanagan Princeton Buck Creek Nechako Sverdrup Potomac GoM Laguna Salada Rio Grande North Park Raton Galisteo San Juan
Las Tetas de Cabra Formation (North America)
Country   United States   Canada   United States   Mexico   United States
Copelemur        
Coryphodon                    
Diacodexis              
Homogalax              
Oxyaena          
Paramys                  
Primates              
Birds          
Reptiles              
Fish              
Insects            
Flora                  
Environments Alluvial-fluvio-lacustrine Fluvial Fluvial Fluvio-lacustrine Fluvial Lacustrine Fluvio-lacustrine Deltaic-paludal Shallow marine Fluvial Shallow marine Fluvial Fluvial
  Wasatchian volcanoclastics

  Wasatchian fauna

  Wasatchian flora
Volcanic Yes No Yes No Yes No Yes No Yes No

See also

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References

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  1. ^ a b Las Tetas de Cabra Formation at Fossilworks.org
  2. ^ Alroy, 2002
  3. ^ a b c d e Novacek et al. 1991
  4. ^ a b Morris, 1966
  5. ^ a b c d e f g h i j k l m n o Novacek et al., 1987
  6. ^ a b Lucas, 1998

Bibliography

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  • Alroy, J (2002), Synonymies and reidentifications of North American fossil mammals
  • Froehlich, D. J (2002), "Quo vadis Eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla)", Zoological Journal of the Linnean Society, 134 (2): 141–256, doi:10.1046/j.1096-3642.2002.00005.x
  • Lucas, S. G (1998), Fossil mammals and the Paleocene/Eocene series boundary in Europe, North America, and Asia, M.-P. Aubry, S. G. Lucas and W. A. Berggren (eds.), Late Paleocene–Early Eocene Biotic and Climatic Events in the Marine and Terrestrial Records, pp. 451–500
  • Novacek, M. J.; Ferrusquía Villafranca, I.; Flynn, J. J.; Wyss, A. R.; Norell, M. A. (1991), "Wasatchian (early Eocene) mammals and other vertebrates from Baja California, Mexico : the Lomas Las Tetas de Cabra fauna", Bulletin of the American Museum of Natural History, 208: 1–88
  • Novacek, M. J.; Flynn, J. J.; Ferrusquia Villafranca, I.; Cipolletti, R. M. (1987), "An early Eocene (Wasatchian) mammal fauna from Baja California", National Geographic Research, 3: 376–388
  • Morris, W. J (1966), "Fossil mammals from Baja California: new evidence on early Tertiary migrations", Science, 153 (3742): 1376–1378, Bibcode:1966Sci...153.1376M, doi:10.1126/science.153.3742.1376, PMID 17814386