Contents

Jagua Formation

Geologic formation in Cuba

Jagua Formation
Stratigraphic range: Mid-Late Oxfordian ~158–156 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Sub-units	Pan de Azúcar, Zacarías, Pimienta & Jagua Vieja Members
Underlies	Guasasa Formation
Overlies	San Cayetano Formation
Thickness	160 m (520 ft)
Lithology
Primary	Shale, limestone
Location
Coordinates	22°42′N 83°36′W / 22.7°N 83.6°W / 22.7; -83.6
Region	Pinar del Río Province
Country	Cuba
Extent	Sierra de los Órganos, Sierra del Rosario
Type section
Named for	Jagua
Jagua Formation (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.

Description[edit]

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[edit]

Vertebrate paleofauna[edit]

Other fossils[edit]

See also[edit]

• Plesiosaur stratigraphic distribution
• List of pterosaur-bearing stratigraphic units

References[edit]

Bibliography[edit]

• Barrett, P.M.; Butler, R.J.; Edwards, N.P.; Milner, A.R. (2008), Pterosaur distribution in time and space: an atlas - pp. 61–107 (PDF), Flugsaurier: Pterosaur papers in honour of Peter Wellnhofer - Hone, D.W.E., and Buffetaut, É. (eds). Zitteliana B, 28., pp. 1–264, retrieved 2019-02-07
• De la Fuente, M.S.; Iturralde Vinent, M. (2001), "A new pleurodiran turtle from the Jagua Formation (Oxfordian) of western Cuba" (PDF), Journal Information, 75: 860–869, retrieved 2019-02-07
• Gasparini, Zulma (2009), "A New Oxfordian Pliosaurid (Plesiosauria, Pliosauridae) in the Caribbean Seaway" (PDF), Palaeontology, 52 (3): 661–669, archived from the original (PDF) on 2011-07-16, retrieved 2019-02-07 Archived 2011-07-16 at the Wayback Machine
• Gasparini, Z.; Fernández, M.; De La Fuente, M. (2004), "A new pterosaur from the Jurassic of Cuba", Palaeontology, 47: 919–927, retrieved 2019-02-07
• Gasparini, Z.; Bardet, N.; Iturralde Vinent, M. (2002), "A new cryptoclidid plesiosaur from the Oxfordian (Late Jurassic) of Cuba", Geobios, 35 (2): 201–211, doi:10.1016/s0016-6995(02)00019-0, archived from the original on 2010-07-02, retrieved 2019-02-07
• Gasparini, Z.; Iturralde Vinent, M. (2001), "Metriorhynchid crocodiles (Crocodyliformes) from the Oxfordian of Western Cuba" (PDF), Neues Jahrbuch für Geologie und Paläontologie - Monatshefte, 9: 534–542, retrieved 2019-02-07
• Iturralde Vinent, Manuel; Norell, Mark A. (1996), "Synopsis of Late Jurassic Marine Reptiles from Cuba" (PDF), American Museum Novitates, American Museum of Natural History: 1–17, retrieved 2019-02-07

Further reading[edit]

• Bermúdez, Pedro J (1961), "Las formaciones geológicas de Cuba" (PDF), Geología Cubana, 1: 1–180, retrieved 2019-02-06
• Colbert, Edwin H (1969), "A Jurassic pterosaur from Cuba" (PDF), American Museum Novitates, 2370: 1–26, retrieved 2019-02-07
• Fernández, M.; Iturralde Vinent, M. (2000), "An Oxfordian Ichthyosauria (Reptilia) from Vinales, western Cuba: paleobiogeographic significance", Journal of Vertebrate Paleontology, 20: 191–193, retrieved 2019-02-07
• Pugaczewska, H (1978), "Jurassic pelecypods from Cuba", Acta Palaeontologica Polonica, 23: 163–186
• Schevill, W.E (1950), "An Upper Jurassic sepioid from Cuba", Journal of Paleontology, 24: 99–101
• Thies, D (1989), "Lepidotes gloriae, sp. nov. (Actinopterygii: Semionotiformes) from the Late Jurassic of Cuba" (PDF), Journal of Vertebrate Paleontology, 9: 18–40, retrieved 2019-02-07