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Ichthyosaurus Acutirostris
''Temnodontosaurus'' (meaning "cutting-tooth lizard") is an extinct genus of large ichthyosaurs that lived during the Lower Jurassic in what is now Europe and possibly Chile. The first known fossil is a specimen consisting of a complete skull and partial skeleton discovered on a cliff by Joseph and Mary Anning around the early 1810s in Dorset, England. The anatomy of this specimen was subsequently analyzed in a series of articles written by Sir Everard Home between 1814 and 1819, making it the very first ichthyosaur to have been scientifically described. In 1822, the specimen was assigned to the genus ''Ichthyosaurus'' by William Conybeare (geologist), William Conybeare, and more precisely to the species ''I. platyodon''. Noting the large dental differences with other species of ''Ichthyosaurus'', Richard Lydekker suggested in 1889 moving this species into a separate genus, which he named ''Temnodontosaurus''. While many species have been assigned to the genus, only five are curre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hettangian
The Hettangian is the earliest age and lowest stage of the Jurassic Period of the geologic timescale. It spans the time between 201.3 ± 0.2 Ma and 199.3 ± 0.3 Ma (million years ago). The Hettangian follows the Rhaetian (part of the Triassic Period) and is followed by the Sinemurian. In European stratigraphy the Hettangian is a part of the time span in which the Lias was deposited. An example is the British Blue Lias, which has an upper Rhaetian to Sinemurian age. Another example is the lower Lias from the Northern Limestone Alps where well-preserved but very rare ammonites, including '' Alsatites'', have been found. Stratigraphic definitions The Hettangian was introduced in the literature by Swiss palaeontologist, Eugène Renevier, in 1864. The stage takes its name from Hettange-Grande, a town in north-eastern France, just south of the border with Luxembourg on the main road from Luxembourg City to Metz. The base of the Hettangian Stage (which is also the base of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Everard Home
Sir Everard Home, 1st Baronet, FRS (6 May 1756, in Kingston upon Hull – 31 August 1832, in London) was a British surgeon. Life Home was born in Kingston-upon-Hull and educated at Westminster School. He gained a scholarship to Trinity College, Cambridge, but decided instead to become a pupil of his brother-in-law, John Hunter, at St George's Hospital. Hunter had married his sister, the poet and socialite Anne Home, in July 1771. He assisted Hunter in many of his anatomical investigations, and in the autumn of 1776 he partly described Hunter's collection. There is also considerable evidence that Home plagiarized Hunter's work, sometimes directly, sometimes indirectly; he also systematically destroyed his brother-in-law's papers in order to hide evidence of this plagiarism. It seems likely that the fire (in Home's apartments at Chelsea Hospital) which destroyed the Hunterian manuscripts in Home's possession also destroyed a precious collection of 26 microscopes originally ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Gaudry
Jean Albert Gaudry (16 September 1827 – 27 November 1908) was a French geologist and palaeontologist. He was born at St Germain-en-Laye, and was educated at the Catholic Collège Stanislas de Paris. He was a notable proponent of theistic evolution.Buffetaut, Éric. (1987). ''A Short History of Vertebrate Palaeontology''. Croom Helm. p. 117 Career At the age of twenty-five he made explorations in Cyprus and Greece, residing in the latter country from 1855 to 1860. He then investigated the rich deposit of fossil vertebrata at Pikermi and brought to light a remarkable mammalian fauna, Miocene in age, and intermediate in its forms between European, Asiatic and African types. He also published an account of the geology of the island of Cyprus (''Mém. Soc. Géol. de France'', 1862). In 1853, while still in Cyprus, he was appointed assistant to A d'Orbigny, who was the first to hold the chair of palaeontology in the museum of natural history at Paris. In 1872 he succeeded to this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1885 In Paleontology
Archosaurs Newly named basal archosauromorphs Newly named non-avian dinosaurs Synapsids {, class="wikitable" !Name !Authors !Age !Location !Notes !Images , - , '' Cyonasua'' , Ameghino , 5 Million years ago , * * {{Flag, Venezuela , It was one of the first placental mammals that came from North America. , References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich August Von Quenstedt
Friedrich August von Quenstedt (10 July 1809 – 21 December 1889) was a German geologist and palaeontologist. Life Von Quenstedt was born at Eisleben in Saxony, and educated at the Humboldt University of Berlin. After a period as assistant in the mineralogical museum, he was appointed associate professor (1837) and then professor (1841) of mineralogy and geognosy at the Eberhard Karls Universität Tübingen. Work His earlier work related chiefly to crystallography and mineralogy, on which subjects he published text-books that were widely used. However, he also became distinguished for his researches on palaeontology, and especially for those on the fossils of the Jurassic system. In 1845, he devised a trinomial system of nomenclature for Jurassic ammonites, which has caused some difficulty for later taxonomists.J.H. Callomon, D. T. Donovan, & M. K. Howarth "F. A. Quenstedt's Trinominal Nomenclature of Jurassic Ammonites" ''Palaeontology'' 47 (4) 1063 (2004) He investigated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1854 In Paleontology ...
1850s in paleontology Paleontology Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1902 In Paleontology
Plants Ferns and allies Conifers Angiosperms Turtles New turtle taxa Archosauromorphs Dinosaurs New dinosaur taxa Phytosaurs New phytosaur taxa Protorosaurs Mammals New mammal taxa Fish New fish taxa References {{portal, Paleontology [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
