Las Tetas de Cabra Formation
Geological formation in Baja California, Mexico
Las Tetas de Cabra Formation | |
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Stratigraphic range: Wasatchian ~55.8–50 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
Type | Formation |
Lithology | |
Primary | Sandstone |
Other | Siltstone |
Location | |
Coordinates | ![]() ![]() Las Tetas de Cabra Formation (Mexico) |
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]
Fossil content
The following fossils have been reported from the formation:[1]
Mammals
- Acreodi
- Dissacus sp.[2]
- Wyolestes iglesius[3]
- Artiodactyls
- Cimolesta
- cf. Esthonyx sp.[4]
- Didelphimorphia
- Esteslestes ensis[3]
- Ferae
- Glires
- ?Paramyidae indet.[5]
- Hyaenodonta
- Pantodonta
- Caenolambda jepseni[6]
- Perissodactyls
- Placentalia
- Theriiformes
- Ferae indet.[3]
Reptiles
- cf. Saniwa sp.[5]
- Boidae indet.[5]
- Iguanidae indet.[5]
Amphibians
Fish
Invertebrates
- Gastropods
Flora
Wasatchian correlations
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 | ![]() | ![]() | ![]() | ![]() | ![]() | |||||||||||||||||
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
References
- ^ a b Las Tetas de Cabra Formation at Fossilworks.org
- ^ Alroy, 2002
- ^ a b c d e Novacek et al. 1991
- ^ a b Morris, 1966
- ^ a b c d e f g h i j k l m n o Novacek et al., 1987
- ^ a b Lucas, 1998
Bibliography
- 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