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Morganucodonta
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paceyodon
''Paceyodon'' is an extinct genus of morganucodontan from Early Jurassic deposits of southern Wales, United Kingdom. ''Paceyodon'' is known from an isolated 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 and the type species In 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 species that contains the biological type specimen ... is ''Paceyodon davidi''. References Morganucodonts Hettangian life Jurassic synapsids of Europe Jurassic Wales Fossils of Wales Fossil taxa described in 2011 Taxa named by William A. Clemens Jr. Prehistoric cynodont genera {{paleo-therapsid-stub Paleontology in Wales ... [...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 in 2011 and the type species is ''Bridetherium dorisae''. The species name is in honour of early mammal paleontologist Doris Mary Kermack Doris Mary Kermack FLS (née Carr; 1923 – 2003) was a British paleontologist and marine zoologist at Imperial College London. She completed her PhD thesis entitled 'The anatomy and physiology of the gut of ''Arenicola marina'' L.' at Unive .... References Morganucodonts Hettangian life Jurassic synapsids of Europe Jurassic France Fossils of France Fossil taxa described in 2011 Taxa named by William A. Clemens Jr. Prehistoric cynodont genera {{paleo-therapsid-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 (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammaliaformes
Mammaliaformes ("mammalian forms") is a clade that contains the crown group mammals and their closest Extinction, extinct relatives; the group adaptive radiation, radiated from earlier probainognathian cynodonts. 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 includes Docodonta and ''Hadrocodium'' as well as the Triassic ''Tikitherium'', the earliest known member of the group. Mammaliaformes is a term of phylogenetic nomenclature. In contrast, the assignment of organisms to 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 fa ... [...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 a ...", but later studies have reinterpreted it as a possible member of the family Morganucodontidae. References Morganucodonts Early Jurassic synapsids Jurassic synapsids of Asia Jurassic India Fossils of India Fossil taxa described in 1984 {{Jurassic-animal-stub ... [...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 Tri ... [...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 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 species that contains the biological type specimen ... is ''Purbeckodon batei''. References Morganucodonts Berriasian life Early Cretaceous animals of Europe Early Cretaceous synapsids Cretaceous England Fossils of England Fossil taxa described in 2011 History of Dorset Taxa named by Percy Butler Taxa named by Denise Sigogneau‐Russell Prehistoric cynodont genera {{paleo-therapsid-stub ... [...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 P. ... [...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 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 an ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glamorgan
, HQ = Cardiff , Government = Glamorgan County Council (1889–1974) , Origin= , Code = GLA , CodeName = Chapman code , Replace = * West Glamorgan * Mid Glamorgan * South Glamorgan , Motto = ("He who suffered, conquered") , Image = Flag adopted in 2013 , Map = , Arms = , PopulationFirst = 326,254 , PopulationFirstYear = 1861 , AreaFirst = , AreaFirstYear = 1861 , DensityFirst = 0.7/acre , DensityFirstYear = 1861 , PopulationSecond = 1,120,910Vision of Britain Glamorgan population , PopulationSecondYear = 1911 , AreaSecond = , AreaSecondYear = 1911 , DensitySecond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teeth
A tooth ( : teeth) is a hard, calcified structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores and omnivores, also use teeth to help with capturing or wounding prey, tearing food, for defensive purposes, to intimidate other animals often including their own, or to carry prey or their young. The roots of teeth are covered by gums. Teeth are not made of bone, but rather of multiple tissues of varying density and hardness that originate from the embryonic germ layer, the ectoderm. The general structure of teeth is similar across the vertebrates, although there is considerable variation in their form and position. The teeth of mammals have deep roots, and this pattern is also found in some fish, and in crocodilians. In most teleost fish, however, the teeth are attached to the outer surface of the bone, while in lizards they are attached to the inner surface of the jaw by one side. In cartilaginous fish, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
