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Syngonosaurus
''Syngonosaurus'' is an extinct genus of ornithopod dinosaur from the Early Cretaceous. It was an iguanodontian discovered in England and was first described in 1879. The type species, ''S. macrocercus'', was described by British paleontologist Harry Seeley in 1879 and it was later synonymised with ''Acanthopholis'', but the genus was reinstated in a 2020 study, when ''Syngonosaurus'' and ''Eucercosaurus'' were reinterpreted as basal iguanodontians. History In 1869 Harry Govier Seeley named several new species of ''Acanthopholis'' based on remains from the Cambridge Greensand: ''Acanthopholis macrocercus'', based on specimens CAMSM B55570-55609; ''Acanthopholis platypus'' (CAMSM B55454-55461); and ''Acanthopholis stereocercus'' (CAMSM B55558 55569). Later, Seeley split the material of ''Acanthopholis stereocercus'' and based a new species of ''Anoplosaurus'' on part of it: ''Anoplosaurus major''. He also described a new species, ''Acanthopholis eucercus'', on the basis of six ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthopholis
''Acanthopholis'' (; meaning "spiny scales") is a genus of ankylosaurian dinosaur in the family Nodosauridae that lived during the Late Cretaceous Period of England. A single species, ''A. horrida'', exists. History Around 1865 commercial fossil collector John Griffiths found some dinosaurian remains, including osteoderms, at the shoreline near Folkestone in Kent, which he sold to the metallurgist Dr. John Percy. Percy brought them to the attention of Thomas Henry Huxley, who paid Griffiths to dig up all fossils he could find at the site. Despite being hampered by the fact that it was located between the tidemarks, he managed to uncover several additional bones and parts of the body armour. In 1867 Huxley named the genus and species ''Acanthopholis horridus''. The dinosaur's generic name refers to its armour, being derived from Greek άκανθα ''akantha'' meaning 'spine' or 'thorn' and φόλις ''pholis'' meaning 'scale'. The specific name ''horridus'' means 'frightenin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anoplosaurus
''Anoplosaurus'' (meaning "unarmored or unarmed lizard") is an extinct genus of herbivorous nodosaurid dinosaur, from the late Albian-age Lower Cretaceous Cambridge Greensand of Cambridgeshire, England. It has in the past been classified with either the armored dinosaurs or the ornithopods, but current thought has been in agreement with the "armored dinosaur" interpretation, placing it in the Ankylosauria. History Harry Govier Seeley named this genus in 1879 for a disarticulated partial postcranial skeleton that had been uncovered at Reach, Cambridgeshire, composed of a left dentary fragment, numerous vertebrae from the neck, back, and sacrum, parts of the pectoral girdle, humerus fragments, part of the left femur, left tibia, foot bones, ribs, and other fragments. He regarded it as possibly juvenile, due to its small size, with a length of about five feet. The type species is ''Anoplosaurus curtonotus''. The generic name, derived from the Greek ''hoplo''~, a word element ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucercosaurus
''Eucercosaurus'' (meaning "good-tailed lizard") is the name given to a genus of ornithopod dinosaur from the Albian stage of the Early Cretaceous. It was an ornithopod discovered in the Cambridge Greensand of England and is known from 19 centra, 3 sacrals, 4 dorsals and 12 caudals, and a neural arch found near Trumpington, Cambridgeshire. The type species, ''E. tanyspondylus'', was described by British paleontologist Harry Seeley in 1879. It is considered a dubious name, and was once considered an ankylosaur. According to a 2020 study, ''Eucercosaurus'' and ''Syngonosaurus'' were basal iguanodontia Iguanodontia (the iguanodonts) is a clade of herbivorous dinosaurs that lived from the Middle Jurassic to Late Cretaceous. Some members include ''Camptosaurus'', ''Dryosaurus'', ''Iguanodon'', ''Tenontosaurus'', and the hadrosaurids or "duck-bi ...ns. References Ornithopods Albian life Early Cretaceous dinosaurs of Europe Cretaceous England Fossils of England Fossil ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge Greensand
The Cambridge Greensand is a geological unit in England whose strata are earliest Cenomanian in age. It lies above the erosive contact between the Gault Formation and the Chalk Group in the vicinity of Cambridgeshire, and technically forms the lowest member bed of the West Melbury Marly Chalk Formation.Cambridge Greensand at BGS It is a remanié deposit, containing reworked fossils of late age, including those of dinosaurs and pterosaurs. Description The lithology is made out of |
Iguanodontia
Iguanodontia (the iguanodonts) is a clade of herbivorous dinosaurs that lived from the Middle Jurassic to Late Cretaceous. Some members include ''Camptosaurus'', ''Dryosaurus'', ''Iguanodon'', ''Tenontosaurus'', and the hadrosaurids or "duck-billed dinosaurs". Iguanodontians were one of the first groups of dinosaurs to be found. They are among the best known of the dinosaurs, and were among the most diverse and widespread herbivorous dinosaur groups of the Cretaceous period. Classification Iguanodontia is often listed as an infraorder within a suborder Ornithopoda, though Benton (2004) lists Ornithopoda as an infraorder and does not rank Iguanodontia. Traditionally, iguanodontians were grouped into the superfamily Iguanodontoidea and family Iguanodontidae. However, phylogenetic studies show that the traditional "iguanodontids" are a paraphyletic grade leading up to the hadrosaurs (duck-billed dinosaurs). Groups like Iguanodontoidea are sometimes still used as unranked clades ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul M
Paul may refer to: *Paul (given name), a given name (includes a list of people with that name) *Paul (surname), a list of people People Christianity * Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Christian missionary and writer *Pope Paul (other), multiple Popes of the Roman Catholic Church *Saint Paul (other), multiple other people and locations named "Saint Paul" Roman and Byzantine empire *Lucius Aemilius Paullus Macedonicus (c. 229 BC – 160 BC), Roman general *Julius Paulus Prudentissimus (), Roman jurist *Paulus Catena (died 362), Roman notary *Paulus Alexandrinus (4th century), Hellenistic astrologer *Paul of Aegina or Paulus Aegineta (625–690), Greek surgeon Royals * Paul I of Russia (1754–1801), Tsar of Russia *Paul of Greece (1901–1964), King of Greece Other people *Paul the Deacon or Paulus Diaconus (c. 720 – c. 799), Italian Benedictine monk *Paul (father of Maurice), the father of Maurice, Byz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Dubium
In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a specimen belongs to that group or not. This may happen if the original type series (i. e. holotype, isotype, syntype or paratype) is lost or destroyed. The zoological and botanical codes allow for a new type specimen, or neotype, to be chosen in this case. A name may also be considered a ''nomen dubium'' if its name-bearing type is fragmentary or lacking important diagnostic features (this is often the case for species known only as fossils). To preserve stability of names, the ''International Code of Zoological Nomenclature'' allows a new type specimen, or neotype, to be chosen for a ''nomen dubium'' in this case. 75.5. Replacement of unidentifiable name-bearing type by a neotype. When an author considers that the taxonomic identity of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Dinosauria
''The Dinosauria'' is an extensive book on dinosaurs, compiled by David B. Weishampel, Peter Dodson, and Halszka Osmólska. It has been published in 2 editions, with the first edition published in 1990, consisting of material from 23 scientists.Benson R. (2007), "Review: Weishampel D.B., Dodson P. & Osmolska H. 2004. ''The Dinosauria''", ''Geological Magazine'' 144(1): pp. 218-219 The second, greatly revised edition, was published in 2004, with material from 43 scientists. Both editions were published by University of California Press. The book covers a wide range of topics about dinosaurs, including their systematics, anatomy, and history History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr .... It has been lauded as "the best scholarly reference work available on dinosaurs" and "an his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithopods
Ornithopoda () is a clade of ornithischian dinosaurs, called ornithopods (), that started out as small, bipedal cursorial, running grazers and grew in size and numbers until they became one of the most successful groups of herbivores in the Cretaceous world, dominating the North American land. Their major evolutionary advantage was the progressive development of a chewing apparatus that became the most sophisticated ever developed by a non-avian dinosaur, rivaling that of modern mammals such as the domestic cow. They reached their apex of diversity and ecological dominance in the Hadrosauridae, hadrosaurids (colloquially known as 'duck-bills'), before they were wiped out by the Cretaceous–Paleogene extinction event along with all other non-aves, avian dinosaurs. Members are known from all seven continents, though they are generally rare in the Southern Hemisphere. History of research In 1870, Thomas Henry Huxley listed Iguanodontidae (coined by Cope a year earlier) as one of his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Dinosauria (second Edition)
''The Dinosauria'' is an extensive book on dinosaurs, compiled by David B. Weishampel, Peter Dodson, and Halszka Osmólska. It has been published in 2 editions, with the first edition published in 1990, consisting of material from 23 scientists.Benson R. (2007), "Review: Weishampel D.B., Dodson P. & Osmolska H. 2004. ''The Dinosauria''", ''Geological Magazine'' 144(1): pp. 218-219 The second, greatly revised edition, was published in 2004, with material from 43 scientists. Both editions were published by University of California Press. The book covers a wide range of topics about dinosaurs, including their systematics, anatomy, and history History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr .... It has been lauded as "the best scholarly reference work available on dinosaurs" and "an hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrurosaurus
''Macrurosaurus'' (meaning "large-tailed lizard") is the name given to a genus of dinosaur from the Early Cretaceous. It was a titanosauriform which lived in what is now England. The type species, ''M. semnus'', was named in 1876. A second species, ''M. platypus'', may also exist. History The genus ''Macrurosaurus'' was named by Harry Govier Seeley in 1869 in his index of fossils from the Cambridge Greensand. In 1876 Seeley more thoroughly described the type species, ''Macrurosaurus semnus'', making the name valid.H.G. Seeley, 1876, "On ''Macrurosaurus semnus'' (Seeley), a long tailed animal with procoelous vertebrae from the Cambridge Upper Greensand, preserved in the Woodwardian Museum of the University of Cambridge", ''Quarterly Journal of the Geological Society of London'' 32: 440-444 The generic name is derived from Greek ''makros'', "large", and ''oura'', "tail". The specific name is derived from Greek ''semnos'', "stately" or "impressive". A second species, ''M. platypus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albian Life
The Albian is both an age of the geologic timescale and a stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch/Series. Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian. Stratigraphic definitions The Albian Stage was first proposed in 1842 by Alcide d'Orbigny. It was named after Alba, the Latin name for River Aube in France. A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan '' Microhedbergella renilaevis'' at the Col de Pré-Guittard section, Arnayon, Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series) is defined as the place where the foram species '' Rotalipora globotruncanoides'' first appears in the stratigraphic column. The Albian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
