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.
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] San Cayetano Formation and is overlain by the Guasasa Formation . The bedding direction is steeply dipping towards the northwest.
Vertebrate paleofauna [ edit ] Based on Iturralde-Vinent & Izquierdo (2015):[ 4]
Color key Notes small text ; crossed out taxa are discredited.
Genus Species Location Stratigraphic position Description Notes Image Camarasauridae indet. Jagua Vieja Jagua Vieja Mb. A camarasaurid sauropod , the only dinosaur known from the formation. Material consists of a first or second metacarpal, now lost.[ 5] [ 4] [ 5]
Genus Species Location Stratigraphic position Description Notes Image Cacibupteryx C. caribensis Mogote Jagua Vieja Jagua Vieja Mb. A rhamphorhynchid pterosaur [ 6] Nesodactylus N. hesperius Hoyo del Palmar Jagua Vieja Mb. A rhamphorhynchid pterosaur [ 6]
Genus Species Location Stratigraphic position Description Notes Image Ichthyosauria indet. Laguna de Piedra Jagua Vieja Mb. An indeterminate ichthyosaur, initially described as "Ichthyosaurus torrey [ 4] Ophthalmosauridae Indet. Indeterminate Viñales [ 11]
Genus Species Location Stratigraphic position Description Notes Image Notoemys N. oxfordensis Valle de Viñales A platychelyid pan-pleurodiran turtle , originally described under the separate genus of Caribemys
^ Jagua Formation at Fossilworks .org^ Barrett et al., 2008 ^ Iturralde Vinent & Norell, 1996 ^ a b c d e f g h i j k l m n o Iturralde-Vinent, Manuel; Izquierdo, Yasmani Ceballos (2015-02-23). "Catálogo de Especímenes de Vertebrados del Jurásico Tardío (pieces, reptiles) de Cuba Occidental" . Revista Paleontología Mexicana . 4 (1): 25–40. doi :10.22201/igl.05437652e.2015.4.1.288 . ISSN 2007-5189 . ^ a b 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 . ^ a b Gasparini et al., 2004 ^ Gasparini & Iturralde Vinent, 2001, p.538 ^ Laguna de Piedra at Fossilworks .org^ Gasparini, 2009 ^ Gasparini et al., 2002 ^ Gasparini & Iturralde Vinent, 2001, p.542 ^ Sierra Ancón at Fossilworks .org^ Hoyo de la Sierra at Fossilworks .org^ a b c d Mogote La Mina at Fossilworks .org^ Jagua Vieja at Fossilworks .org^ Viñales at Fossilworks .org 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 (4): 860–869, Bibcode :2001JPal...75..860D , doi :10.1017/S0022336000016954 , retrieved 2019-02-07 Gasparini, Zulma (2009), "A New Oxfordian Pliosaurid (Plesiosauria, Pliosauridae) in the Caribbean Seaway" (PDF) , Palaeontology 52 (3): 661–669, Bibcode :2009Palgy..52..661G , doi :10.1111/j.1475-4983.2009.00871.x , 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 (4): 919–927, Bibcode :2004Palgy..47..919G , doi :10.1111/j.0031-0239.2004.00399.x , 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, Bibcode :2002Geobi..35..201G , 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" , Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 2001 (9): 534–542, doi :10.1127/njgpm/2001/2001/534 , retrieved 2019-02-07 Iturralde Vinent, Manuel; Norell, Mark A. (1996), "Synopsis of Late Jurassic Marine Reptiles from Cuba" (PDF) , American Museum Novitates , retrieved 2019-02-07 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 , 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, doi :10.1671/0272-4634(2000)020[0191:AOIRFV]2.0.CO;2 , 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 (1): 18–40, Bibcode :1989JVPal...9...18T , doi :10.1080/02724634.1989.10011736 , retrieved 2019-02-07 
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