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Morganucodont
Morganucodonta ("Glamorgan teeth") is an extinct order of basal Mammaliaformes, a group including crown-group mammals (Mammalia) and their close relatives. Their remains have been found in Southern Africa, Western Europe, North America, India and China. The morganucodontans were probably insectivorous and nocturnal, though like eutriconodonts some species attained large sizes and were carnivorous. Nocturnality is believed to have evolved in the earliest mammals in the Triassic (called the nocturnal bottleneck) as a specialisation that allowed them to exploit a safer, night-time niche, while most larger predators were likely to have been active during the day (though some dinosaurs, for example, were nocturnal as well). Anatomy and biology Morganucodontans had a double jaw articulation made up of the dentary-squamosal joint as well as a quadrate-articular one. This implies that they also retained one of their postdentary bones: the articular. There is a trough at the back of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storchodon
''Storchodon'' is an extinct genus of morganucodont mammaliaforms from the Late Jurassic (Kimmeridgian) of Germany. Its only species is ''Storchodon cingulatus'', which is known exclusively from a single upper molar found at the Süntel Formation of Lower Saxony. Etymology The generic name ''Storchodon'' honours the German palaeontologist Gerhard Storch, whereas the specific epithet ''cingulatus'' is a reference to the prominent cingulum of the molar. Description ''Storchodon'' was large for a morganucodont; the holotype molar has a length of , which among morganucodonts is exceeded only by the holotype of '' Paceyodon davidi''. This large size may be a case of insular gigantism. As in other morganucodonts, the molar has a triconodont shape, with the three main cusps A, B and C being set in a straight line. Cusp D is relatively large, and unlike in for example ''Morganucodon ''Morganucodon'' ("Glamorgan tooth") is an early mammaliaform genus that lived from the Late Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paceyodon
''Paceyodon'' is an Lists of extinct species, extinct genus of morganucodontan mammaliaform from Early Jurassic deposits of southern Wales, United Kingdom. ''Paceyodon'' is known from an isolated Molar (tooth), molariform that is significantly larger than any morganucodontan molariform yet discovered. It was collected in the Pant Quarry, Vale of Glamorgan. It was first named by William A. Clemens in 2011 in paleontology, 2011 and the type species is ''Paceyodon davidi''. References Morganucodonta Hettangian life Early Jurassic synapsids of Europe Jurassic Wales Fossils of Wales Fossil taxa described in 2011 Taxa named by William A. Clemens Jr. {{paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morganucodon
''Morganucodon'' ("Glamorgan tooth") is an early mammaliaform genus that lived from the Late Triassic to the Middle Jurassic. It first appeared about 205 million years ago. Unlike many other early mammaliaforms, ''Morganucodon'' is well represented by abundant and well-preserved (though in the vast majority of cases disarticulated) material. Most of this comes from Glamorgan in Wales (''Morganucodon watsoni''), but fossils have also been found in Yunnan Province in China (''Morganucodon oehleri'') and various parts of Europe and North America. Some closely related animals (''Megazostrodon'') are known from exquisite fossils from South Africa. The name comes from a Latinization of ''Morganuc'', the name for South Glamorgan in the Domesday Book, the county of Wales where it was discovered by Walter Georg Kühne,Walter G. Kühne, "On a Triconodont tooth of a new pattern from a Fissure-filling in South Glamorgan", ''Proceedings of the Zoological Society of London'', volume 119 (1949� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridetherium
''Bridetherium'' is an extinct genus of morganucodontan from Early Jurassic deposits of southern Wales, United Kingdom. ''Bridetherium'' is known from some isolated upper and lower molariform. It was collected in the Pant Quarry, Vale of Glamorgan. It was first named by William A. Clemens Jr. in 2011 and the type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ... is ''Bridetherium dorisae''. The species name is in honour of early mammal paleontologist Doris Mary Kermack. References Morganucodonta Hettangian life Early Jurassic synapsids of Europe Jurassic Wales Fossils of Wales Fossil taxa described in 2011 Taxa named by William A. Clemens Jr. {{paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eozostrodon
''Eozostrodon'' is an extinct morganucodont mammaliaform. It lived during the Rhaetian stage of the Late Triassic. ''Eozostrodon'' is known from disarticulated teeth from South West England South West England, or the South West of England, is one of the nine official regions of England, regions of England in the United Kingdom. Additionally, it is one of four regions that altogether make up Southern England. South West England con ... and estimated to have been less than in head-body length, slightly smaller than the similar-proportioned ''Megazostrodon''. ''Eozostrodon'' was described on the basis of two teeth discovered in a quarry near Frome in Somerset, Somerset, England, each originally assigned to separate species ''E. parvus'' and ''E. problematicus''. The latter was synonymized in 1971. The identity of and status of ''Eozostrodon'' is controversial. Walter Georg Kühne, Kühne considered ''Eozostrodon'' to be "one and the same" with ''Morganucodon'' which he descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammaliaformes
Mammaliaformes ("mammalian forms") is a clade of synapsid tetrapods that includes the crown group mammals and their closest extinct relatives; the group radiated from earlier probainognathian cynodonts during the Late Triassic. It is defined as the clade originating from the most recent common ancestor of Morganucodonta and the crown group mammals; the latter is the clade originating with the most recent common ancestor of extant Monotremata, Marsupialia and Placentalia. Besides Morganucodonta and the crown group mammals, Mammaliaformes also includes Docodonta and ''Hadrocodium''. Mammaliaformes is a term of phylogenetic nomenclature. In contrast, the assignment of organisms to class Mammalia has traditionally been founded on traits and, on this basis, Mammalia is slightly more inclusive than Mammaliaformes. In particular, trait-based taxonomy generally includes ''Adelobasileus'' and '' Sinoconodon'' in Mammalia, though they fall outside the Mammaliaformes definition. These ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wareolestes
''Wareolestes rex'' ("Ware's Brigand king") is a mammaliaform from the Middle Jurassic (Bathonian) rocks of England and Scotland. It was originally known from isolated teeth from England, before a more complete jaw with teeth was found in the Kilmaluag Formation of Skye, Scotland. Etymology ''Wareolestes rex'' was named by Eric Freeman, who named it for Dr. Martin Ware "in recognition of this major contribution" to Freeman's successful work. The second part of the generic name, ''lestes'', comes from the Greek for ''brigand''. The species name ''rex'', Latin for ''king'', is both in recognition of the relatively large size of this Mesozoic mammaliaform, and a pun on the name of Mr E. J. King. Discovery ''Wareolestes rex'' was first found in and named from the Forest Marble Formation of Kirtlington, Oxfordshire, England. The holotype is a single molar tooth, originally described as a lower molar, but later argued to be an upper molar.Hahn G., Sigogneau-Russell D. and Gogefroit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosierodon
''Rosierodon'' is an extinct genus of morganucodont mammaliaforms from the Late Triassic The Late Triassic is the third and final epoch (geology), epoch of the Triassic geologic time scale, Period in the geologic time scale, spanning the time between annum, Ma and Ma (million years ago). It is preceded by the Middle Triassic Epoch a ... of France. It contains a single species, ''Rosierodon anceps'', which was named in 2015 based on several isolated lower molariforms discovered in Saint-Nicolas-de-Port. References Morganucodonta Rhaetian life Late Triassic synapsids of Europe Triassic France Fossils of France Fossil taxa described in 2015 {{Paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purbeckodon
''Purbeckodon'' is an extinct genus of mammaliaforms, possibly belonging to Morganucodonta, that is known from Early Cretaceous deposits of southeastern Dorset, England. It was collected in the Purbeck Limestone Group of Dorset. It was first named by Percy M. Butler, Denise Sigogneau-Russell and P. C. Ensom in 2011 and the type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ... is ''Purbeckodon batei''. References Morganucodonta Berriasian life Early Cretaceous synapsids of Europe Cretaceous England Fossils of England Fossil taxa described in 2011 History of Dorset Taxa named by Percy M. Butler Taxa named by Denise Sigogneau-Russell {{paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indotherium
''Indotherium'' is an extinct genus of mammaliaforms that lived in what is now India during the Early Jurassic. It contains one species, ''I. pranhitai'', which is known from two upper molar teeth found in the Kota Formation of Telangana. When it was first described, it was assigned to the paraphyletic group "Symmetrodonta Symmetrodonta is a group of Mesozoic mammals and mammal-like synapsids characterized by the triangular aspect of the molars when viewed from above, and the absence of a well-developed talonid. The traditional group of 'symmetrodonts' ranges in ...", but later studies have reinterpreted it as a possible member of the family Morganucodontidae. References Morganucodonta Early Jurassic synapsids of Asia Jurassic India Fossils of India Fossil taxa described in 1984 {{Paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallautherium
''Hallautherium'' is an extinct genus of morganucodont mammaliaforms from the Late Triassic of Europe. The type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ... ''H. schalchi'' is known from the Klettgau Formation of Switzerland. In addition, a molariform tooth referable to the genus has been found in Poland. References Morganucodonta Norian genera Rhaetian genera Late Triassic synapsids of Europe Triassic Switzerland Fossils of Poland Fossils of Switzerland Taxa named by William A. Clemens Jr. Fossil taxa described in 1980 {{paleo-cynodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cifellilestes
''Cifellilestes'' is a genus of early mammaliaform from the Late Jurassic Morrison Formation of North America. The type and only species, ''C. ciscoensis'', was named in 2022 by Brian M. Davis and colleagues, and was found in the Cisco Mammal Quarry of Utah. The generic name of the animal is in honor of Richard Cifelli, combined with the Greek word "lestes", which means thief. The specific name refers to Cisco, Utah, a ghost town close in close proximity to the location where the holotype was found. The genus is known from two specimens, OMNH 80538 & 69352. These specimens represent a right and left skull fragment respectively, both preserving partial palate, snout and postcanine dentition. It belongs to the clade Morganucodonta Morganucodonta ("Glamorgan teeth") is an extinct Order (biology), order of basal Mammaliaformes, a group including crown-group mammals (Mammalia) and their close relatives. Their remains have been found in Southern Africa, Western Europe, North A .... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
