El Doctor Formation
El Doctor Formation Stratigraphic range: Albian-Cenomanian ~ | |
---|---|
Type | Formation |
Sub-units | La Negra Member |
Lithology | |
Primary | Lime mudstone |
Location | |
Coordinates | 20°48′N 99°18′W / 20.8°N 99.3°WCoordinates: 20°48′N 99°18′W / 20.8°N 99.3°W |
Approximate paleocoordinates | 18°54′N 64°30′W / 18.9°N 64.5°W |
Region | Hidalgo |
Country | Mexico |
El Doctor Formation (Mexico) |
The El Doctor Formation is a geologic formation in Mexico. It preserves fossils dating back to the Albian and Cenomanian stages of the Cretaceous period.[1]
Description[]
The light grey micritic limestone sequence with intercalated black chert lenses was deposited in an open marine basin with a hypersaline and/or poorly oxygenated bottom.[1]
Fossil content[]
The formation has provided the following fossils:[1][2]
- Fish
- Crustaceans
See also[]
References[]
- ^ a b c El Doctor Formation at Fossilworks.org
- ^ Feldmann et al., 2007
- ^ Fielitz & González Rodríguez, 2010
- ^ a b Hegna et al., 2014
Bibliography[]
- Journal of Paleontology 88. 606–616. ; , and . 2014. First Mesozoic thylacocephalans (Arthropoda, Crustacea; Cretaceous) in the western hemisphere: new discoveries from the Muhi Quarry Lagerstätte.
- Journal of Vertebrate Paleontology 30. 1343–1351. , and . 2010. A New Species of Enchodus (Aulopiformes: Enchodontidae) from the Cretaceous (Albian to Cenomanian) of Zimapán, Hidalgo, México.
- Annals of Carnegie Museum 76. 145–156. ; ; ; ; , and . 2007. Crustacea from the Muhi Quarry (Albian-Cenomanian), and a review of Aptian Mecochiridae (Astacidea) From Mexico.
Categories:
- Geologic formations of Mexico
- Cretaceous System of North America
- Cretaceous Mexico
- Albian Stage
- Cenomanian Stage
- Mudstone formations
- Deep marine deposits
- Paleontology in Mexico