Coordinates: 20°48′N 99°18′W / 20.8°N 99.3°W / 20.8; -99.3

El Doctor Formation

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El Doctor Formation
Stratigraphic range: Albian-Cenomanian
~112–95 Ma
TypeFormation
Sub-unitsLa Negra Member
Lithology
PrimaryLime mudstone
Location
CoordinatesLua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value).
Approximate paleocoordinatesLua error: callParserFunction: function "#coordinates" was not found.
RegionHidalgo
CountryMexico
El Doctor Formation (Mexico)
El Doctor Formation (Hidalgo)

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] Ammonite fossils show that age of Late Albian is more likely.[2]

Description

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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

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The formation has provided the following fossils:[1][3][4][5][2]

Fish
Arthropods

Ammonites

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Echinoderms

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See also

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References

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  1. ^ a b c El Doctor Formation at Fossilworks.org
  2. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Feldmann et al., 2007
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  7. ^ Fielitz & González Rodríguez, 2010
  8. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  9. ^ a b Hegna et al., 2014

Bibliography

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  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).