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Thalassochelydia
Thalassochelydia is a clade of extinct marine turtles from the Late Jurassic and earliest Cretaceous of Europe and South America. The group is defined as including ''Eurysternum'', ''Plesiochelys'' and ''Thalassemys'' to the exclusion of ''Pelomedusa'', '' Testudo'' and '' Protostega''. While a clade uniting the families Eurysternidae, Plesiochelyidae and Thalassemydidae had been supported by phylogenetic evidence, a name was not given for the clade until 2017, when Jérémy Anquetin and colleagues coined Thalassochelydia. While inner relationships of the clade are so uncertain as to make the monophyly of the families questionable, the significant diversity of thalassochelydians makes using the potentially invalid terms useful to describe the different morphologies. The monophyly of Thalassochelydia was further supported by a later analysis by Serjocha Evers and Roger Benson in 2019, where the group, represented by '' Solnhofia'' and Plesiochelyidae was sister taxon to Sandown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solnhofia
''Solnhofia'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of Germany. The type species is ''Solnhofia parsonsi'', named by Gaffney in 1975 for a partial skull and jaw from the early Tithonian of the Solnhofen Formation in Bavaria. Additional material including a complete skeleton is known from the late Kimmeridgian of Switzerland and the Kimmeridgian/Tithonian of other deposits within Bavaria, and potentially also unprepared material from the Late Jurassic of France. The genus was referred to the family Eurysternidae by Anquetin and colleagues in 2017, which may represent an artificial grade of early thalassochelydians. In 2020 a new species ''Solnhofia brachyrhyncha'' was described from the Kimmeridigan aged Reuchenette Formation The Reuchenette Formation is a Jurassic geologic formation in Switzerland. It is Kimmeridgian in age and predominantly consists of well stratified limestone, with lithology variable both laterally and stratigraphically inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owadowia
''Owadowia'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of Poland. The type and only species is ''Owadowia borsukbialynickae'', named by Szczygielski and colleagues in 2017 for a partial lower jaw, coracoid, ilium and femur from the early Tithonian Kcynia Formation. The limited material means that it is difficult to compare ''Owadowia'' to its relatives, and it may not be a unique taxon. The genus lacks the features diagnostic to its parent clade Thalassochelydia, has similarities to ''Solnhofia ''Solnhofia'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of Germany. The type species is ''Solnhofia parsonsi'', named by Gaffney in 1975 for a partial skull and jaw from the early Tithonian of the Solnhofen Formation ...'' and '' Portlandemys'' as well as being a Late Jurassic marine turtle like the remainder of the group. References Thalassochelydia Prehistoric turtle genera Tithonian genera Late Jurassic turtles Lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalassemydidae
''Thalassemys'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of western and central Europe. While the genus was originally named by Rütimeyer in 1859 for a large carapace and other associated fragments from the late Kimmeridgian of the Reuchenette Formation of Switzerland, although the taxon was not validly named until 1873 when Rütimeyer designated the type species ''T. hugii''. Rütimeyer also named ''T. gresslyi'' from the Reunchenette Formation in the same paper as ''T. hugii'', but it cannot be differentiated from the type material of ''T. hugii'' and is therefore a junior synonym. A large assemblage of shell and postcranial material from the Reunchenette was named as a species of ''Eurysternum'', ''E. ignoratum'', by Bräm in 1965. While originally distinguished based on the presence of fontanelles on the plastron, the feature was later identified on ''T. hugii'' and ''E. ignoratum'' was designated a junior synonym. Additional material from the K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplax
''Aplax'' is a dubious genus of extinct thalassochelydian turtle from the Late Jurassic of Germany. The type and only species is ''Aplax oberndorferi'', named by Hermann von Meyer in 1843 for a complete juvenile skeleton from the early Tithonian of the Solnhofen Formation in Bavaria. Despite being aware that shell morphology changes during growth, Meyer named ''Aplax'' due to his consideration it represented a relative of ''Dermochelys'', where the adults lack distinction of shell regions as in ''Aplax''. However the taxon was later referred to Thalassochelydia Thalassochelydia is a clade of extinct marine turtles from the Late Jurassic and earliest Cretaceous of Europe and South America. The group is defined as including ''Eurysternum'', ''Plesiochelys'' and ''Thalassemys'' to the exclusion of ''Pelome ... by Anquetin and colleagues in 2017, and due to the loss of the original holotype it cannot be identified as a distinct taxon of a juvenile of existing Solnhofen turtles an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaliochelys
''Achelonia'' is an extinct genus of marine thalassochelydian turtle. Its type species is ''Achelonia formosa''. Fossils are known from the Upper Jurassic (late Kimmeridgian) of Wattendorf, Germany, Cerin, France, and England. Material from England was originally considered to belong to the separate genus ''Enaliochelys'' and species ''Enaliochelys chelonia'', named by Harry Govier Seeley in 1869 for a partial disarticulated skeleton from the early Kimmeridgian of the Kimmeridge Clay in Cambridgeshire Cambridgeshire (abbreviated Cambs.) is a Counties of England, county in the East of England, bordering Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfordshire to the south, and Bedfordshire and North .... The synonymy was recognised in 2020. References Thalassochelydia Prehistoric turtle genera Kimmeridgian genera Late Jurassic turtles Late Jurassic reptiles of Europe Jurassic Germany Fossils of Germany Fossil taxa desc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euryaspis
''Euryaspis'' is a dubious genus of extinct thalassochelydian turtle from the Late Jurassic of Germany. The type and only species is ''Euryaspis radians'', originally proposed by Wagner in 1859 before being validly described and illustrated in 1861. The only specimen was a partial carapace probably from the Tithonian, although the original locality is unknown. The genus is referred to Thalassochelydia and has been considered a synonym of ''Eurysternum ''Eurysternum'' is an extinct genus of thalassochelydian turtle. Its type species is ''Eurysternum wagleri'', the holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species ...'' or '' Acichelys'' before, but casts that remain of the lost holotype show that it bears no features that can clarify its validity making it a '' nomen dubium''. References {{Taxonbar, from=Q96377472 Thalassochelydia Prehistoric turtle genera Tithonian genera Late Jurassic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hispaniachelys
''Hispaniachelys'' is an extinct genus of thalassochelydian turtle known from the Lorente Formation of southern Spain. Reinterpretation of the original material shows that the taxon lacks diagnostic characteristics and is thus a '' nomen dubium''. Description ''Hispaniachelys'' is known from postcranial material. It is the only known tetrapod from the Mesozoic of the Prebetic and the oldest turtle from southern Europe, dating to the late Oxfordian of the early Late Jurassic, about 161.2-158 million years ago. Etymology ''Hispaniachelys'' was first named by Ben J. Slater, Matías Reolid, Remmert Schouten, and Michael J. Benton in 2011 and the type species is ''Hispaniachelys prebetica''. The generic name is derived from ''Hispania'', a Roman name for the Iberian Peninsula or Spain, and -'' chelys'', Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neusticemys
''Neusticemys'' is an extinct genus of thalassochelydian sea turtle. Its type species is ''Eurysternum neuquinum''. It is known from the Late Jurassic (Tithonian) aged Vaca Muerta of Patagonia, Argentina ''Neusticemys'' was originally described as a new species of ''Eurysternum ''Eurysternum'' is an extinct genus of thalassochelydian turtle. Its type species is ''Eurysternum wagleri'', the holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species ...'', but was later assigned to its own genus in 1993.M. S. Fernandez and M. S. de la Fuente. 1993. Las tortugas casiquélidias de las calizas litográficas titonianas del área Los Catutos Argentina. Ameghiniana 30(3):283-295. References Thalassochelydia Prehistoric turtle genera Tithonian genera Late Jurassic turtles Late Jurassic reptiles of South America Jurassic Argentina Fossils of Argentina Neuquén Basin Fossil taxa described in 1993 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurysternum
''Eurysternum'' is an extinct genus of thalassochelydian turtle. Its type species is ''Eurysternum wagleri'', the holotype of which has since been lost and only survives in illustrations. Formerly assigned species ''Eurysternum ignoratum'' Bram, 1965 is a junior synonym of '' Thalassemys hughii''. The Late Jurassic species ''Eurysternum neuquinum'' Fernandez and de la Fuente, 1988, described from marine deposits in Argentina, is now placed in its own genus ''Neusticemys ''Neusticemys'' is an extinct genus of thalassochelydian sea turtle. Its type species is ''Eurysternum neuquinum''. It is known from the Late Jurassic (Tithonian) aged Vaca Muerta of Patagonia, Argentina ''Neusticemys'' was originally described ...''.M. S. Fernandez and M. S. de la Fuente. 1993. Las tortugas casiquélidias de las calizas litográficas titonianas del área Los Catutos Argentina. Ameghiniana 30(3):283-295. References Thalassochelydia Prehistoric turtle genera Kimmeridgian genera La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelobatochelys
''Pelobatochelys'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of the United Kingdom. The type and only species is ''Pelobatochelys blakii'', named by Harry Govier Seeley in 1875 for a central carapace fragment (designated as lectotype) along with five additional specimens from the remainder of the shell from the early Kimmeridgian of the Kimmeridge Clay in Dorset, and additional material from the Kimmeridge Clay has also been referred to the taxon. The material was considered to be related to various turtles throughout time, including being reassigned to '' Tropidemys'' as ''T. blakii'' based on limited evidence. A large shell also from Weymouth, Dorset Weymouth is a seaside town in Dorset, on the English Channel coast of England. Situated on a sheltered bay at the mouth of the River Wey, south of the county town of Dorchester, Weymouth had a population of 53,427 in 2021. It is the third l ... may represent further material of ''Pelobatochelys'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalassemys
''Thalassemys'' is a genus of extinct thalassochelydian turtle from the Late Jurassic of western and central Europe. While the genus was originally named by Rütimeyer in 1859 for a large carapace and other associated fragments from the late Kimmeridgian of the Reuchenette Formation of Switzerland, although the taxon was not validly named until 1873 when Rütimeyer designated the type species ''T. hugii''. Rütimeyer also named ''T. gresslyi'' from the Reunchenette Formation in the same paper as ''T. hugii'', but it cannot be differentiated from the type material of ''T. hugii'' and is therefore a junior synonym. A large assemblage of shell and postcranial material from the Reunchenette was named as a species of ''Eurysternum'', ''E. ignoratum'', by Bräm in 1965. While originally distinguished based on the presence of fontanelles on the plastron, the feature was later identified on ''T. hugii'' and ''E. ignoratum'' was designated a junior synonym. Additional material from the K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testudo (genus)
''Testudo'', the Mediterranean tortoises, are a genus of tortoises found in North Africa, Western Asia, and Europe. Several species are under threat in the wild, mainly from habitat destruction. Background They are small tortoises, ranging in length from 7.0 to 35 cm and in weight from 0.7 to 7.0 kg. Systematics The systematics and taxonomy of ''Testudo'' is notoriously problematic. Highfield and Martin commented: Synonymies on ''Testudo'' are notoriously difficult to compile with any degree of accuracy. The status of species referred has undergone a great many changes, each change introducing an additional level of complexity and making bibliographic research on the taxa extremely difficult. Most early and not a few later checklists contain a very high proportion of entirely spurious entries, and a considerable number of described species are now considered invalid – either because they are homonyms, non-binomial or for some other reason. Since then, DNA sequence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
