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2024 In Archosaur Paleontology
This article records new taxa of every kind of fossil archosaur that are scheduled to be Species description, described during 2024, as well as other significant discoveries and events related to the paleontology of archosaurs published in 2024. Pseudosuchians New pseudosuchian taxa General pseudosuchian research * Evidence of the impact of function on the evolution of the lower jaw morphology in crocodile-line archosaurs is presented by Rawson ''et al.'' (2024). * A review of studies on the thermometabolism of crocodile-line archosaurs from the preceding 20 years is published by Faure-Brac (2024). * Sennikov (2024) interprets Ornithosuchidae, ornithosuchids as macrophagous predators with specialized jaw apparatus, and notes analogs between them and saber-toothed therapsids (including mammals). * A study on the locomotion of ''Riojasuchus, Riojasuchus tenuisceps'' is published by von Baczko ''et al.'' (2024), who reconstruct ''R. tenuisceps'' as having an erect posture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asiatosuchus
''Asiatosuchus'' is an extinct genus of crocodyloid crocodilians that lived in Eurasia during the Paleogene. Many Paleogene crocodilians from Europe and Asia have been attributed to ''Asiatosuchus'' since the genus was named in 1940. These species have a generalized crocodilian morphology typified by flat, triangular skulls. The feature that traditionally united these species under the genus ''Asiatosuchus'' is a broad connection or symphysis between the two halves of the lower jaw. Recent studies of the evolutionary relationships of early crocodilians along with closer examinations of the morphology of fossil specimens suggest that only the first named species of ''Asiatosuchus'', ''A. grangeri'' from the Eocene of Mongolia, belongs in the genus. Most species are now regarded as '' nomina dubia'' or "dubious names", meaning that their type specimens lack the unique anatomical features necessary to justify their classification as distinct species. Other species such as ''"A." ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epoidesuchus
''Epoidesuchus'' is an extinct pepesuchine peirosaurid from the Late Cretaceous (Campanian to Maastrichtian) Adamantina Formation of Brazil. Like other members of the Pepesuchinae and unlike the closely related members of Peirosaurinae, ''Epoidesuchus'' had long and gracile jaws, which may indicate that they were semi-aquatic animals more similar to modern crocodilians. The genus is monotypic, meaning it only contains a single species, ''Epoidesuchus tavaresae''. History and naming The holotype specimen of ''Epoidesuchus'' were found in 2011 in outcrops of the Adamantina Formation in the Brazilian municipality of Catanduva. The specimen; which consists of a nearly tubular snout, a partial skull roof, parts of the mandible and a single rib; was recovered from a road cut and subsequently sent to the Museu de Paleontologia Professor Antonio Celso de Arruda Campos. The material was first identified as a peirosaurid that same year by Fabiano Iori. The animal was eventually fully de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skull Of Enalioetes Schroederi
The skull, or cranium, is typically a bony enclosure around the brain of a vertebrate. In some fish, and amphibians, the skull is of cartilage. The skull is at the head end of the vertebrate. In the human, the skull comprises two prominent parts: the neurocranium and the facial skeleton, which evolved from the first pharyngeal arch. The skull forms the frontmost portion of the axial skeleton and is a product of cephalization and vesicular enlargement of the brain, with several special senses structures such as the eyes, ears, nose, tongue and, in fish, specialized tactile organs such as barbels near the mouth. The skull is composed of three types of bone: cranial bones, facial bones and ossicles, which is made up of a number of fused flat and irregular bones. The cranial bones are joined at firm fibrous junctions called sutures and contains many foramina, fossae, processes, and sinuses. In zoology, the openings in the skull are called fenestrae, the most prominent of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metriorhynchid
Metriorhynchidae is an extinct family of specialized, aquatic metriorhynchoid crocodyliforms from the Middle Jurassic to the Early Cretaceous period (Bajocian to early Aptian) of Europe, North America and South America. The name Metriorhynchidae was coined by the Austrian zoologist Leopold Fitzinger in 1843.Fitzinger LJFJ. 1843. ''Systema Reptilium''. Wien: Braumüller et Seidel, 106 pp. The group contains two subfamilies, the Metriorhynchinae and the Geosaurinae. They represent the most marine adapted of all archosaurs. Description Metriorhynchids are fully aquatic crocodyliforms. Their forelimbs were small and paddle-like, and unlike living crocodylians, they lost their osteoderms ("armour scutes"). Their body shape maximised hydrodynamy (swimming efficiency), as they did have a shark-like tail fluke. Like ichthyosaurs and plesiosaurs, metriorhynchids developed smooth, scaleless skin. However, unlike those marine reptiles, they were poikilothermic with little to no endotherm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stadthagen Formation
The Stadthagen Formation is a geological formation located in Hanover, Germany, dating to the Early Cretaceous (Valanginian). The formation contains fossils of reptiles and fish, suggesting that the formation was once a shallow marine setting.''Pêgas, R.V., Holgado, B., Leal, M.E.C., (2019). "''Targaryendraco wiedenrothi'' gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids", ''Historical Biology'', 1–15. doi:10.1080/08912963.2019.1690482'' History The Stadthagen Formation outcrops in the Engelbostel and Sachsenhagen clay pits, which operated as brickworks A brickworks, also known as a brick factory, is a factory for the manufacturing of bricks, from clay or shale. Usually a brickworks is located on a clay bedrock (the most common material from which bricks are made), often with a clay pit, quar ... from 1904 to 1986. After the brickworks closed in 1986, most of the quarry ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Systematic Palaeontology
The ''Journal of Systematic Palaeontology'' (Print: , online: ) is a peer-reviewed scientific journal of palaeontology published by Taylor & Francis on behalf of the British Natural History Museum. , the editor-in-chief is Paul D. Taylor. The journal covers papers on new or poorly known faunas and floras and new approaches to systematics. It was established in 2003. According to the ''Journal Citation Reports'', the journal has a 2014 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 3.727, ranking it second out of 49 journals in the category 'Paleontology'. References External links * Paleontology journals Taylor & Francis academic journals Quarterly journals Academic journals established in 2003 English-language journals {{paleo-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enalioetes
''Enalioetes'' is an extinct genus of metriorhynchid thalattosuchian from the Early Cretaceous Stadthagen Formation of Germany. The type species is ''E. schroederi''. Prior to its description in 2024, it was known under the informal names '' Enaliosuchus'' "schroederi" and '' Cricosaurus'' "schroederi". Discovery and naming The holotype, which consists of much of the skull as well as parts of the neck, was discovered no later than 1916 in the Stadthagen Formation in Engelbostel, Germany. At the time of its discovery, the fossil material was thought to have belonged to a type of ichthyosaur by its discoverer, a government architect by the name of D. Hapke. Hapke then turned the fossils over to Prussian paleontologist Henry Schroeder in 1916, who proceeded to prepare and describe the material. Some years prior, in 1883, Ernst Koken described another metriorhynchid from the Stadthagen Formation, which he named '' Enaliosuchus macrospondylus''.Koken E. (1883). Die reptilian der ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caipirasuchus
''Caipirasuchus'' is an extinct genus of sphagesaurid notosuchians known from the Late Cretaceous of northern São Paulo State and western Minas Gerais State, southeastern Brazil. The type species, ''C. paulistanus'', was named in 2011. A second species, ''C. montealtensis'', was referred to ''Caipirasuchus'' in 2013 after having been named in 2008 as a species of '' Sphagesaurus''. A third species, ''C. stenognathus'', was described in 2014. A fourth species, ''C. mineirus'', was described in 2018. A fifth species, ''C. attenboroughi'', was named in 2021 in honour of David Attenborough, and a sixth species, ''C. catanduvensis'', was described in 2024, with a distinct chamber associated with the airways, possibly used in vocalization. Discovery and naming ''Caipirasuchus'' was first named by Fabiano V. Iori and Ismar S. Carvalho in 2011 and the type species is ''C. paulistanus''. The generic name is derived from Tupi word ''Caipira'' which refers to the traditional inhabit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poposauroidea
Poposauroidea is a clade of advanced Pseudosuchian, pseudosuchians. It includes poposaurids, Shuvosaurinae, shuvosaurids, ctenosauriscids, and other unusual pseudosuchians such as ''Qianosuchus'' and ''Lotosaurus''. It excludes most large predatory quadrupedal "Rauisuchia, rauisuchians" such as rauisuchids and "prestosuchids". Those reptiles are now allied with Crocodylomorpha, crocodylomorphs (crocodile ancestors) in a clade known as Loricata, which is the Sister group, sister taxon to the poposauroids in the clade Paracrocodylomorpha. Although it was first formally defined in 2007, the name "Poposauroidea" has been used for many years. The group has been referred to as Poposauridae by some authors, although this name is often used more narrowly to refer to the family that includes ''Poposaurus'' and its close relatives. It was phylogenetically defined in 2011 by Sterling Nesbitt as ''Poposaurus gracilis'' and all taxa more closely related to it than to ''Postosuchus kirkpatricki' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracrocodylomorpha
Paracrocodylomorpha is a clade of pseudosuchian archosaurs. The clade includes the diverse and unusual group Poposauroidea as well as the generally carnivorous and quadrupedal members of Loricata, including modern crocodylians. Paracrocodylomorpha was named by paleontologist J. Michael Parrish in 1993, although the group is now considered to encompass more reptiles than his original definition intended. The most recent definition of Paracrocodylomorpha, as defined by Sterling Nesbitt in 2011, is "the least inclusive clade containing ''Poposaurus'' and ''Crocodylus niloticus'' (the Nile crocodile). Most groups of paracrocodylomorphs became extinct at the end of the Triassic period, with the exception of the crocodylomorphs, from which crocodylians such as crocodiles and alligators evolved in the latter part of the Mesozoic. History and definition Parrish (1993) defined Paracrocodylomorpha as the last common ancestor of " Poposauridae" and Crocodylomorpha and all of its descend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Favret Formation
The Favret Formation is a Triassic geologic formation. The Favret outcrops in the Augusta, New Pass and Fish Creek ranges of north central Nevada and consists of limestone, shale and siltstone. Fossil Hill Member The Favret Formation along with the Prida Formation, constitute one of the recognized geological formations within the Star Peak Group of northwestern Nevada. These two formations are linked by a single member, known as the Fossil Hill Member. In the Prida Formation, this member outcrops in the western Humboldt Range, while the Favret Formation, outcrops in the Augusta Mountains, where it reaches up to more than 300 metres (980 ft) thick. Although they overlap substantially, the two formations do not share precisely the same age, the Prida unit dates from the Middle to Late Anisian, while the Favret unit dates only from the Late Anisian, between approximately 244 and 242 million years ago. The Fossil Hill Member has received extensive interest from paleon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
