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Chubutinectes
''Chubutinectes'' (meaning "Chubut Province, Chubut swimmer") is an extinct genus of elasmosaurid plesiosaur from the Late Cretaceous La Colonia Formation of Argentina. The genus contains a Monotypic taxon, single species, ''C. carmeloi'', known from a partial skeleton and associated gastroliths. Discovery and naming The ''Chubutinectes'' holotype specimen, Museum of Paleontology Egidio Feruglio, MPEF-PV 5232, was discovered in 2009 within sediments of the La Colonia Formation on the North Patagonian Massif, Somún Curá plateau in Chubut Province, Argentina. The Joint, disarticulated specimen consists of Cervical vertebrae, cervical, pectoral, Dorsal vertebrae, dorsal, Sacral vertebrae, sacral, and caudal vertebrae, caudal vertebral centra and neural arches, various ribs, partial Shoulder girdle, pectoral and Pelvis, pelvic girdles, fore- and hind-limb elements, and about 350 gastroliths. In 2023, O'Gorman and colleagues Species description, described ''Chubutinectes carmelo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Colonia Formation
The La Colonia Formation is a geological Formation (geology), formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, pp.600-604 Originally thought to be Campanian (c.73-72 million years ago) in age or earlier, studies of underlying formations have made a Maastrichtian (72–66 million years ago) age more likely.Rauhut, 2003 Description It is divided up into three distinct facies, the first is up to thick and consists of conglomerate (geology), conglomerate, the second is by far the thickest at over , consists of siltstone and claystone, with interbeds of claystone/shale and sandstone, the third is less than thick and consists of clay, and probably represents a nearshore marine depositional environment, environment. The paleoflora was known for its aquatic components, ''Paleoazolla'' and ''Regnellidium''. However, recent paleobotanical discoveries at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weddellonectia
Elasmosauridae, often called elasmosaurs or elasmosaurids, is an extinct family (biology), family of plesiosaurs that lived from the Hauterivian Stage (stratigraphy), stage of the Early Cretaceous to the Maastrichtian stage of the Late Cretaceous Period (geology), period (c. 130 to 66 mya (unit), mya). The taxon was initially erected in 1869 by Edward Drinker Cope to include the type genus ''Elasmosaurus'' with the related ''Cimoliasaurus'', although he did not argued in detail why. Over the following years, many authors recognized this classification on the basis of predominantly postcranial features, becoming one of the three groups in which plesiosaurs were often classified during the 19th century, along with the Pliosauridae and the Plesiosauridae. However, most of these traits led to many genera since recognized as belonging to other plesiosaur families being classified as elasmosaurids. Another family historically considered as distinct, the Cimoliasauridae, has since 2009 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2023 In Reptile Paleontology
This list of fossil reptiles described in 2023 is a list of new taxa of fossil reptiles that were binomial nomenclature, described during the year 2023, as well as other significant discoveries and events related to reptile paleontology that occurred in 2023. Squamates Squamate research * Redescription of ''Palaeogekko, Palaeogekko risgoviensis'' is published by Villa (2023), who confirms the validity of this species as a distinct taxon, and interprets it as a non-Eublepharidae, eublepharid Gekkonoidea, gekkonoid of uncertain affinities. * Thorn ''et al.'' (2023) describe new fossil material of ''Tiliqua frangens, Aethesia frangens'' from the Pleistocene of Australia, interpret it as a large-bodied (approximately 2.4 kg) blue-tongued skink, and transfer it to the genus ''Tiliqua''. * Lacertidae, Lacertid, blanid and Anguidae, anguid fossil material, including one of the oldest records of the genus ''Blanus'' reported to date, is described from the Early Miocene localities M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
