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Jonkeria
''Jonkeria'' is an extinct genus of dinocephalians. Species were very large and omnivorous (although there is some dispute to this, e.g. Colbert 1969 p. 136), from the Tapinocephalus Assemblage Zone, Lower Beaufort Group, of the South African Karoo. Description The overall length was or more (up to ), the skull about 55 cm long. The skull is nearly twice as long as wide, and the snout is elongated and provided with sharp incisors and large canines. The cheek teeth were small. The body is robustly built, and the limbs stout. According to Boonstra 1969 p. 38, ''Jonkeria'' cannot be distinguished from its relative ''Titanosuchus'' on cranial grounds, but only in limb length; ''Jonkeria'' having short and squat limbs, and ''Titanosuchus'' long ones. Evidence of femoral osteomyelitis has been described in a fossilised specimen of ''J. parva''. The authors attributed the cause of the pathology, characterised by bony spicules growing perpendicular to nonpathological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonkeria
''Jonkeria'' is an extinct genus of dinocephalians. Species were very large and omnivorous (although there is some dispute to this, e.g. Colbert 1969 p. 136), from the Tapinocephalus Assemblage Zone, Lower Beaufort Group, of the South African Karoo. Description The overall length was or more (up to ), the skull about 55 cm long. The skull is nearly twice as long as wide, and the snout is elongated and provided with sharp incisors and large canines. The cheek teeth were small. The body is robustly built, and the limbs stout. According to Boonstra 1969 p. 38, ''Jonkeria'' cannot be distinguished from its relative ''Titanosuchus'' on cranial grounds, but only in limb length; ''Jonkeria'' having short and squat limbs, and ''Titanosuchus'' long ones. Evidence of femoral osteomyelitis has been described in a fossilised specimen of ''J. parva''. The authors attributed the cause of the pathology, characterised by bony spicules growing perpendicular to nonpathological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonkeria BW
''Jonkeria'' is an extinct genus of dinocephalians. Species were very large and omnivorous (although there is some dispute to this, e.g. Colbert 1969 p. 136), from the Tapinocephalus Assemblage Zone, Lower Beaufort Group, of the South African Karoo. Description The overall length was or more (up to ), the skull about 55 cm long. The skull is nearly twice as long as wide, and the snout is elongated and provided with sharp incisors and large canines. The cheek teeth were small. The body is robustly built, and the limbs stout. According to Boonstra 1969 p. 38, ''Jonkeria'' cannot be distinguished from its relative '' Titanosuchus'' on cranial grounds, but only in limb length; ''Jonkeria'' having short and squat limbs, and ''Titanosuchus'' long ones. Evidence of femoral osteomyelitis has been described in a fossilised specimen of ''J. parva''. The authors attributed the cause of the pathology, characterised by bony spicules growing perpendicular to nonpathologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Therapsids
This list of therapsids is an attempt to create a comprehensive listing of all genera that have ever been included in the Therapsida excluding mammals and purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful ('' nomina dubia''), or were not formally published (''nomina nuda''), as well as junior synonyms of more established names, and genera that are no longer considered therapsids. The list currently contains 510 generic names. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1916 In Paleontology
Plants Newly named angiosperms Fish Bony fish Dinosaurs Newly named dinosaurs Data courtesy of George Olshevsky's dinosaur genera list and Dr. Jeremy Montague's dinosaur genus database. Plesiosaurs Newly named taxa Synapsids Non-mammalian References {{portal, Paleontology 1910s in paleontology Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... Paleontology 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanosuchus
''Titanosuchus ferox'' ("Fierce titan crocodile") is an extinct species of dinocephalian therapsids that lived in the Middle Permian epoch in South Africa. Along with its close relatives, ''Jonkeria'' and ''Moschops'', ''Titanosuchus'' inhabited present-day South Africa around 265 million years ago, in the Late Permian. ''Titanosuchus'' was a carnivore which measured over 2.5 m long and might have eaten both ''Jonkeria'' and ''Moschops'', among other vertebrates. Its teeth included sharp incisors and fang-like canines, perfect for biting prey. ''Titanosuchus'' should not be confused with the therapsid ''Eotitanosuchus'', which belonged to a different family. ''Parascapanodon'' and ''Scapanodon'' were once thought to be distinct genera, but are now considered to be junior synonyms of ''Titanosuchus''.Boonstra, L. D., 1969, The fauna of the Tapinocephalus zone (Beaufort beds of the Karoo): Annals of the South African Museum, v. 56, part 1, p. 1-73. See also * List of therapsids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapinocephalus Assemblage Zone
The ''Tapinocephalus'' Assemblage Zone is a tetrapod assemblage zone or biozone which correlates to the middle Abrahamskraal Formation, Adelaide Subgroup of the Beaufort Group, a fossiliferous and geologically important geological Group of the Karoo Supergroup in South Africa. The thickest outcrops, reaching approximately , occur from Merweville and Leeu-Gamka in its southernmost exposures, from Sutherland through to Beaufort West where outcrops start to only be found in the south-east, north of Oudshoorn and Willowmore, reaching up to areas south of Graaff-Reinet. Its northernmost exposures occur around the towns Fraserburg and Victoria West. The ''Tapinocephalus Assemblage Zone'' is the second biozone of the Beaufort Group. The name of the biozone refers to '' Tapinocephalus atherstonei'', a large herbivorous tapinocephalid dinocephalian therapsid. It is characterised by the presence of this dinocephalian species along with the appearance of other advanced tapinocephalid dinoce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scapanodon
''Titanosuchus ferox'' ("Fierce titan crocodile") is an extinct species of dinocephalian therapsids that lived in the Middle Permian epoch in South Africa. Along with its close relatives, ''Jonkeria'' and '' Moschops'', ''Titanosuchus'' inhabited present-day South Africa around 265 million years ago, in the Late Permian. ''Titanosuchus'' was a carnivore which measured over 2.5 m long and might have eaten both ''Jonkeria'' and ''Moschops'', among other vertebrates. Its teeth included sharp incisors and fang-like canines, perfect for biting prey. ''Titanosuchus'' should not be confused with the therapsid ''Eotitanosuchus'', which belonged to a different family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its .... ''Parascapanodon'' and ''Scapanodon'' were once thought to be disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lieuwe Dirk Boonstra
Lieuwe Dirk Boonstra (1905 – 1975) was a South African palaeontologist whose work focused on the therapsida, mammal-like reptiles of the Middle ( Tapinocephalus Assemblage Zone, ''Tapinocephalus'' Assemblage Zone) and Late Permian, whose fossil remains are common in the South African Karoo. He was the author of a large number of papers on Therapsids and Pareiasaurs, and described and revised a number of species. Work In 1927 Boonstra was appointed Assistant Palaeontologist of the South African Museum and promoted to Palaeontologist in 1931. He remained at the museum until his retirement in 1972. He was the sole curator of the museum's Karoo vertebrate fossil collection for 45 years. Awards He was awarded the Queen Victoria Scholarship by the University of Stellenbosch and received the Havenga prize for Biology from Suid-Afrikaanse Akademie vir Wetenskap en Kuns The Suid-Afrikaanse Akademie vir Wetenskap en Kuns (SAAWK) (literally ''South African Academy for Science ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteomyelitis
Osteomyelitis (OM) is an infection of bone. Symptoms may include pain in a specific bone with overlying redness, fever, and weakness. The long bones of the arms and legs are most commonly involved in children e.g. the femur and humerus, while the feet, spine, and hips are most commonly involved in adults. The cause is usually a bacterial infection, but rarely can be a fungal infection. It may occur by spread from the blood or from surrounding tissue. Risks for developing osteomyelitis include diabetes, intravenous drug use, prior removal of the spleen, and trauma to the area. Diagnosis is typically suspected based on symptoms and basic laboratory tests as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR).This is because plain radiographs are unremarkable in the first few days following acute infection. Diagnosis is further confirmed by blood tests, medical imaging, or bone biopsy. Treatment of bacterial osteomyelitis often involves both antimicrobials and sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annals Of The South African Museum
''African Natural History'' was a scientific journal published by Iziko Museums (Cape Town Cape Town ( af, Kaapstad; , xh, iKapa) is one of South Africa's three capital cities, serving as the seat of the Parliament of South Africa. It is the legislative capital of the country, the oldest city in the country, and the second largest ...). It took the place of the ''Annals of the South African Museum'', which has been discontinued. Now the journal has been discontinued. External links * Biology journals Annual journals English-language journals Publications established in 2005 {{biology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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