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 ~ | |
Type | Formation |
Lithology | |
Primary | Sandstone |
Other | Siltstone |
Location | |
Coordinates | 28°42′N 114°06′W / 28.7°N 114.1°W |
Approximate paleocoordinates | 31°06′N 97°00′W / 31.1°N 97.0°W |
Region | Baja California |
Country | Mexico |
Type section | |
Named for | Loma las Tetas de Cabra |
Fossil content
editThe following fossils have been reported from the formation:[1]
Mammals
edit- Acreodi
- Artiodactyls
- Cimolesta
- Didelphimorphia
- Ferae
- Glires
- Hyaenodonta
- Pantodonta
- Perissodactyls
- Placentalia
- Theriiformes
Reptiles
editAmphibians
editFish
editInvertebrates
edit- Gastropods
Flora
editWasatchian correlations
editFormation | 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 | ||
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 | |||||||||
Volcanic | Yes | No | Yes | No | Yes | No | Yes | No | Yes | No |
See also
editReferences
editBibliography
edit- 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