Jagua_Formation

Jagua Formation

Jagua Formation

Geologic formation in Cuba

The Jagua Formation is a Late Jurassic (middle to late Oxfordian) geologic formation in the Sierra de los Órganos and Sierra del Rosario mountain ranges in Pinar del Río Province, western Cuba.[1] Plesiosaur, pliosaur, pterosaur,[2] metriorhynchid, turtle and dinosaur remains are among the fossils that have been recovered from its strata.

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Description

The formation comprises marine shales and limestones. The 60 metres (200 ft) thick Jagua Vieja Member consists of black shales and horizontally laminated marly micritic to biomicritic limestones. The latter contains calcareous concretions which the fossils are found in.[3] The formation overlies the San Cayetano Formation and is overlain by the Guasasa Formation. The bedding direction is steeply dipping towards the northwest.

Fossil content

Vertebrate paleofauna

More information Paleofauna of the Jagua Formation, Genus ...

Other fossils

  • Favreina
  • Globochaete
  • Gryphaea mexicana - Pan de Azúcar Mb.[11]
  • Lepidotes gloriae[12]
  • Liostrea mairei[13]
  • L. sandalina - Zacarías Mb.[14]
  • Nanogyra (Nanogyra) nana - Zacarías Mb.[14]
  • Ostrea broughtoni - Zacarías Mb.[14]
  • Plicatula cf. weymouthiana - Zacarías Mb.[14]
  • Voltzia palmeri[15]
  • Perisphinctes sp.[16]

See also

References

  1. [1]
    Jagua Formation at Fossilworks.org
  2. [2]
    Barrett et al., 2008
  3. [3]
    Iturralde Vinent & Norell, 1996
  4. [4]
    Gasparini et al., 2004
  5. [5]
    Laguna de Piedra at Fossilworks.org
  6. [6]
    Gasparini, 2009
  7. [7]
    Gasparini et al., 2002
  8. [8]
    Gasparini & Iturralde Vinent, 2001, p.538
  9. [9]
    Gasparini & Iturralde Vinent, 2001, p.542
  10. [10]
    Apesteguía, S.; Ceballos Izquierdo, Y.; Iturralde-VINENT, M. (2019-09-02). "New taxonomic assignment for a dinosaur sauropod bone from Cuba". Historical Biology. 33 (5): 737–742. doi:10.1080/08912963.2019.1661406. ISSN 0891-2963. S2CID 202854022.
  11. [11]
    Sierra Ancón at Fossilworks.org
  12. [12]
    Hoyo de San Antonio at Fossilworks.org
  13. [13]
    Hoyo de la Sierra at Fossilworks.org
  14. [14]
    Mogote La Mina at Fossilworks.org
  15. [15]
    Jagua Vieja at Fossilworks.org
  16. [16]
    Viñales at Fossilworks.org

Bibliography

Further reading
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