Английская Википедия:Campur Formation

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Шаблон:Infobox rockunit

The Campur Formation (Kca) is a geologic formation of the Petén Basin of northern Guatemala. The subtidal limestone preserves fossils dating back to the Late Cretaceous period.[1]

Description

The formation consists of fossiliferous limestones with minor levels of dolomites. The formation is rich in rudists and miliolids.[2] Breccias and clayey conglomerates, siltstones and limestones occur in the formation. The formation was probably deposited in a fore-reef environment in an open shelf system.[3] The lower boundary of the Campur Formation is transitional into the underlying Cobán Formation. The formation is overlain by the Sepur Formation of the Petén Group.[4] The Campur Formation is laterally equivalent with the upper part of the Ixcoy Formation of western Guatemala.[5]

Fossil content

The following fossils have been uncovered from the formation:[6][7]

See also

References

Шаблон:Reflist

Bibliography

  1. Campur Formation at Fossilworks.org
  2. Machorro Sagastume, 2005, p.11
  3. Scott, 1995, p.297
  4. Cuenca Petén - MEM
  5. Machorro Sagastume, 2005, p.9
  6. El Ceibo at Fossilworks.org
  7. Rubelsanto at Fossilworks.org
  8. Scott, 1995, p.303
  9. Scott, 1995, p.304