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Yakemys
''Yakemys'' is an extinct genus of macrobaenid turtles from the Late Jurassic-Early Cretaceous (Tithonian-Valanginian?) lower Phu Kradung Formation of Thailand. It is monotypic, containing a single species, ''Yakemys multiporcata''. Discovery and etymology ''Yakemys'' hails from fossil turtle site Ban Huai Yang (บ้านห้วยยาง) of Northeast Thailand, which, although expected to be within the later Phra Wihan Formation based on its geographic location, is thought to instead belong to the Phu Kradung Formation based on sedimentology. The recovered holotype of ''Yakemys multiporcata'' SM KS39 (housed in the Sirindhorn Museum) consists of a very partial shell, and the paratypes PRC 151, PRC 152, and PRC 153, each one or two shell fragments from different individuals. Its genus name is derived from ยักษ์ (''yak''), meaning "giant" in Thai, and its specific name from Latin "multus" (multiple) and "porca" (ridge). Description ''Yakemys'' is one of the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatolemys
''Anatolemys'' is an extinct turtle genus in the family Macrobaenidae. Two species are known, both of which lived in the Late Cretaceous. Fossils were discovered in the Yalovach Formation of Tajikistan, the Kulbikin Member and Khodzhakul and Bissekty Formations of Uzbekistan and the Bostobe Formation of Kazakhstan. With in carapace length, ''Anatolemys maximus'' was one of the three largest macrobaenids along with Early Cretaceous '' Yakemys multiporcata'' and Paleocene The Paleocene, ( ) or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), E ... '' Judithemys backmani''. References Further reading * Brinkman, Donald B.; Nessov, L. A.; Peng, Jiang-Hua. Khunnuchelys gen.nov., a new trionychid (Testudines: Trionychidae) from the Late Cretaceous of Inner Mongolia and Uzbekistan. Canadian Journal of Ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phu Kradung Formation
The Early Cretaceous Phu Kradung Formation is the lowest member of the Mesozoic Khorat Group which outcrops on the Khorat Plateau in Isan, Thailand. This geological formation consists of micaceous, brown to reddish-brown siltstone beds with minor brown and grey shale and sandstone beds. Occasional lime-noduled conglomerate occurs.Suteetorn and Jarnyahran (1986). "Geological Map of Thailand 1:250,000, Sheet NE 48-14 (Roi Et). The Phu Kradung Formation sediments were deposited in a lake-dominated floodplain cut by meandering and occasionally braided river channels.Racey and Goodall (2009). "Late Palaeozoic and Mesozoic Ecosystems in SE Asia". Geological Society. London. Special Publication 315 Pp 69-84. The Phu Kradung Formation is considered, on the basis of recent vertebrae fossil discoveries, to be Late Jurassic in age. However, new palynology and biostratigraphic data suggests an age of Early Cretaceous for the upper section. Dinosaur remains have been recovered from this f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrobaenids
Macrobaenidae is an extinct family of turtles, known from the Early Cretaceous to Paleogene of Laurasia. Their relationships to other turtles and whether or not they form a monophlyletic group are controversial. They are typically interpreted as stem or crown group cryptodires, but some more recent analyses have found them to lie outside crown group Testudines. Macrobaenids can be distinguished from other testudinatans by the presence of a carotid fenestra, cruciform plastron with strap-like epiplastra, and a lack of extragulars. Genera *'' Anatolemys'' Central Asia, Late Cretaceous ( Khodzhakul Formation, Uzbekistan, Cenomanian, Bissekty Formation, Uzbekistan, Turonian, Bostobe Formation, Kazakhstan, Santonian Yalovach Formation, Tajikistan, Santonian) *'' Appalachemys'' Mooreville Chalk, Alabama, Late Cretaceous (Santonian– Campanian) *'' Asiachelys'' Khulsangol Formation, Mongolia, Early Cretaceous ( Albian) *''Aurorachelys'' Kanguk Formation, Canada,Turonian *'' Chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrobaenidae
Macrobaenidae is an extinct family of turtles, known from the Early Cretaceous to Paleogene of Laurasia. Their relationships to other turtles and whether or not they form a monophlyletic group are controversial. They are typically interpreted as stem or crown group cryptodires, but some more recent analyses have found them to lie outside crown group Testudines. Macrobaenids can be distinguished from other testudinatans by the presence of a carotid fenestra, cruciform plastron with strap-like epiplastra, and a lack of extragulars. Genera *''Anatolemys'' Central Asia, Late Cretaceous ( Khodzhakul Formation, Uzbekistan, Cenomanian, Bissekty Formation, Uzbekistan, Turonian, Bostobe Formation, Kazakhstan, Santonian Yalovach Formation, Tajikistan, Santonian) *'' Appalachemys'' Mooreville Chalk, Alabama, Late Cretaceous (Santonian–Campanian) *'' Asiachelys'' Khulsangol Formation, Mongolia, Early Cretaceous (Albian) *'' Aurorachelys'' Kanguk Formation, Canada,Turonian *'' Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrobaenid
Macrobaenidae is an extinct family of turtles, known from the Early Cretaceous to Paleogene of Laurasia. Their relationships to other turtles and whether or not they form a monophlyletic group are controversial. They are typically interpreted as stem or crown group cryptodires, but some more recent analyses have found them to lie outside crown group Testudines. Macrobaenids can be distinguished from other testudinatans by the presence of a carotid fenestra, cruciform plastron with strap-like epiplastra, and a lack of extragulars. Genera *'' Anatolemys'' Central Asia, Late Cretaceous ( Khodzhakul Formation, Uzbekistan, Cenomanian, Bissekty Formation, Uzbekistan, Turonian, Bostobe Formation, Kazakhstan, Santonian Yalovach Formation, Tajikistan, Santonian) *'' Appalachemys'' Mooreville Chalk, Alabama, Late Cretaceous (Santonian– Campanian) *'' Asiachelys'' Khulsangol Formation, Mongolia, Early Cretaceous ( Albian) *''Aurorachelys'' Kanguk Formation, Canada,Turonian *'' Chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirgizemys
''Kirgizemys'' is an extinct genus of turtle from Early Cretaceous of China, South Korea, Mongolia, Russia and Kyrgyzstan Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the east. .... References * Danilov, I. G.; Averianov, A.O.; Skutchas, P.P. & Rezvyi, A.S. 2006. ''Kirgizemys'' (Testudines: Macrobaenidae): New material from the Lower Cretaceous of Buryatia (Russia) and taxonomic revision. pp. 46–62 in I. G. Danilov & J. F. Parham (eds.), Fossil Turtle Research, Vol. 1. * Parham, J.F. & Hutchison, J.H. 2003. A new eucryptodiran turtle from the Late Cretaceous of North America (Dinosaur Provincial Park, Alberta, Canada). J. Vertebr. Paleontol. 23 (4): 783–798. * Shukanov, V.B. 2000Mesozoic turtles of Middle and Central Asia pp. 309–367 in M. J. Benton, M. A. Shishkin, D. M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angolachelonia
Angolachelonia is a clade of extinct turtles from the Late Jurassic to Paleogene of Eurasia. The group is defined as all taxa derived from the ancestor of the type genus '' Angolachelys'' and ''Solnhofia'', a definition that could potentially encompass a clade of entirely marine turtles. Angolachelonia was originally inclusive of only ''Solnhofia'', ''Angolachelys'' and '' Sandownia'' when originally conceived by Octavio Mateus and colleagues in 2009, but later phylogenetic analyses by Serjocha Evers and Roger Benson in 2018 File:2018 Events Collage.png, From top left, clockwise: The 2018 Winter Olympics opening ceremony in PyeongChang, South Korea; Protests erupt following the Assassination of Jamal Khashoggi; March for Our Lives protests take place across the United ... unites the family Sandownidae, including ''Angolachelys'' and ''Sandownia'' among other taxa, with the entirely Late Jurassic clade Thalassochelydia, where ''Solnhofia'' may be a basal member. While the pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordosemys
''Ordosemys'' is an extinct genus of sea turtle from the Cretaceous period The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of t .... References Extinct turtles Early Cretaceous turtles Early Cretaceous reptiles of Asia Yixian fauna Paleontology in Shandong Fossil taxa described in 1994 {{paleo-turtle-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liaochelys
''Liaochelys'' is an extinct genus of macrobaenid turtle which existed in western Liaoning, China during the early Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ... epoch. It was first named by Chang-Fu Zhou in 2010 and the type species is ''Liaochelys jianchangensis''. References Cryptodira Early Cretaceous turtles Early Cretaceous reptiles of Asia Fossil taxa described in 2010 Prehistoric turtle genera Extinct turtles {{paleo-turtle-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
