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Bothriospondylus Magnus
''Ornithopsis'' (meaning "bird-likeness") was a medium-sized Early Cretaceous sauropod dinosaur, from England. The type species, which is the only species seen as valid today, is ''O. hulkei''. History of discovery Gideon Algernon Mantell described many fossils that had been previously collected from the Tilgate Forest of the Early Cretaceous Wealden Formation in his 1833 paper on the geology of southeast England, including a bone he considered to be the of ''Iguanodon'', otherwise only known definitively from teeth that had been found in the area since 1822. The bone was redescribed by Richard Owen in 1854, who reaffirmed its referral as a quadrate of ''Iguanodon'', but also suggested it could be the same bone of ''Streptospondylus'' or ''Cetiosaurus'' as it was not directly associated with the characteristic teeth of ''Iguanodon''. This specimen is stored as British Museum of Natural History R2239, having been purchased from Mantell in 1838. BMNH R28632, a similar bone to BMN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous ( geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java-Manihiki-Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kerguelen P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptospondylus
''Streptospondylus'' (meaning "reversed vertebra") is a genus of tetanuran theropod dinosaur known from the Late Jurassic period of France, 161 million years ago. It was a medium-sized predator with an estimated length of 6 meters (19.5 ft) and a weight of 500 kg (1,100 lbs). Discovery and naming ''Streptospondylus'' was one of the first dinosaurs collected and was the first described, though not the first dinosaur named. It was not recognised as a theropod dinosaur until 2001. In 1778, abbey Charles Bacheley, a Norman naturalist, reported the presence of fossil bones in the Callovo-Oxfordian formations, either the Marnes de Dives or the overlying Marnes de Villers, probably the former, exposed at the foot of the Vaches Noires cliffs between Villers-sur-Mer and Houlgate.Brignon, A. (2016) Abbé Bacheley and the discovery of the first dinosaurs and marine crocodilians from the Jurassic of the Vaches Noires (Callovian/Oxfordian, Normandy, France). ''Comptes Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chondrosteosaurus
''Chondrosteosaurus'' (meaning "cartilage and bone lizard") was a sauropod dinosaur from Early Cretaceous England. The type species, ''Chondrosteosaurus gigas'', was described and named by Richard Owen in 1876. The fossils of ''Chondrosteosaurus'' were discovered in the Wessex Formation on the Isle of Wight, likely Brighstone or Brook. ''C. gigas'' is known only from two neck vertebrae (specimens BMNH 46869, the holotype, and BMNH 46870), with distinctive hollows and internal passages now interpreted as evidence of pneumatic air sacs. Paleontologist Harry Seeley had interpreted similar structures as pneumatic in his specimen of ''Ornithopsis''.Seeley, H.G. (1870). "On ''Ornithopsis'', a gigantic animal of the pterodactyle kind from the Wealden." ''Annals and Magazine of Natural History'', Series 4, 5: 279-283. Owen disagreed with Seeley's concept of a giant creature bridging the gap between birds or pterosaurs (Owen considered sauropods to be whale-like marine reptiles), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bothriospondylus Elongatus
''Bothriospondylus'' ("excavated vertebra") is a dubious genus of neosauropod sauropod dinosaur. It lived during the Late Jurassic. Discovery and naming The type species, ''Bothriospondylus suffossus'', was described by Richard Owen in 1875. The specific epithet ''suffossus'' means "undermined" in Latin, a reference to the fact that pleurocoels had hollowed out the sides of the vertebra. It is often incorrectly spelled as "suffosus". Owen based the species on holotype NHMUK R.44592-5, a set of four dorsal vertebrae found in Wiltshire in stratum from the Kimmeridgian, the Kimmeridge Clay. Also three unfused sacral vertebrae were referred. At the same time Owen named three other species of ''Bothriospondylus''. ''B. robustus'' was based on NHMUK R.22428, a dorsal from the same location. ''B. elongatus'' was based on a vertebra from Sussex, NHMUK R.2239, an original syntype of ''Ornithopsis hulkei''. Finally, '' Bothriospondylus magnus'' was a new name for another syntype of ''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bothriospondylus Suffossus
''Bothriospondylus'' ("excavated vertebra") is a dubious genus of neosauropod sauropod dinosaur. It lived during the Late Jurassic. Discovery and naming The type species, ''Bothriospondylus suffossus'', was described by Richard Owen in 1875. The specific epithet ''suffossus'' means "undermined" in Latin, a reference to the fact that pleurocoels had hollowed out the sides of the vertebra. It is often incorrectly spelled as "suffosus". Owen based the species on holotype NHMUK R.44592-5, a set of four dorsal vertebrae found in Wiltshire in stratum from the Kimmeridgian, the Kimmeridge Clay. Also three unfused sacral vertebrae were referred. At the same time Owen named three other species of ''Bothriospondylus''. ''B. robustus'' was based on NHMUK R.22428, a dorsal from the same location. ''B. elongatus'' was based on a vertebra from Sussex, NHMUK R.2239, an original syntype of ''Ornithopsis hulkei''. Finally, '' Bothriospondylus magnus'' was a new name for another syntype of ''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bothriospondylus
''Bothriospondylus'' ("excavated vertebra") is a dubious genus of neosauropod sauropod dinosaur. It lived during the Late Jurassic. Discovery and naming The type species, ''Bothriospondylus suffossus'', was described by Richard Owen in 1875. The specific epithet ''suffossus'' means "undermined" in Latin, a reference to the fact that pleurocoels had hollowed out the sides of the vertebra. It is often incorrectly spelled as "suffosus". Owen based the species on holotype NHMUK R.44592-5, a set of four dorsal vertebrae found in Wiltshire in stratum from the Kimmeridgian, the Kimmeridge Clay. Also three unfused sacral vertebrae were referred. At the same time Owen named three other species of ''Bothriospondylus''. ''B. robustus'' was based on NHMUK R.22428, a dorsal from the same location. ''B. elongatus'' was based on a vertebra from Sussex, NHMUK R.2239, an original syntype of ''Ornithopsis hulkei''. Finally, '' Bothriospondylus magnus'' was a new name for another syntype of ''Ornit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Whitaker Hulke
John Whitaker Hulke FRCS FRS FGS (6 November 1830 – 19 February 1895) was a British surgeon, geologist and fossil collector. He was the son of a physician in Deal, who became a Huxleyite despite being deeply religious. Hulke became Huxley's colleague at the Royal College of Surgeons. He was a long-time collector from the Wealden cliffs of the Isle of Wight, and his work on vertebrate palaeontology included studies of ''Iguanodon'' and ''Hypsilophodon'' from the Wealden (Lower Cretaceous). He became president of the Geological Society (1882–84); and was awarded Wollaston Medal in 1888. He was president of the Pathological Society of London in 1883, and president of the Royal College of Surgeons from 1893 until his death. Life Hulke was born in Deal, Kent, the son of a general practitioner. He was educated partly at a boarding-school in England, partly at the Moravian College at Neuwied (1843–1845), where he gained an intimate knowledge of German and an interest in geolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterosaur
Pterosaurs (; from Greek ''pteron'' and ''sauros'', meaning "wing lizard") is an extinct clade of flying reptiles in the order, Pterosauria. They existed during most of the Mesozoic: from the Late Triassic to the end of the Cretaceous (228 to 66 million years ago). Pterosaurs are the earliest vertebrates known to have evolved powered flight. Their wings were formed by a membrane of skin, muscle, and other tissues stretching from the ankles to a dramatically lengthened fourth finger. There were two major types of pterosaurs. Basal pterosaurs (also called 'non-pterodactyloid pterosaurs' or 'rhamphorhynchoids') were smaller animals with fully toothed jaws and, typically, long tails. Their wide wing membranes probably included and connected the hind legs. On the ground, they would have had an awkward sprawling posture, but the anatomy of their joints and strong claws would have made them effective climbers, and some may have even lived in trees. Basal pterosaurs were insectiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanic Cavity
The tympanic cavity is a small cavity surrounding the bones of the middle ear. Within it sit the ossicles, three small bones that transmit vibrations used in the detection of sound. Structure On its lateral surface, it abuts the external auditory meatus ear canal from which it is separated by the tympanic membrane (eardrum). Walls The tympanic cavity is bounded by: * Facing the inner ear, the medial wall (or ''labyrinthic wall'', ''labyrinthine wall'') is vertical, and has the oval window and round window, the promontory, and the prominence of the facial canal. * Facing the outer ear, the lateral wall (or ''membranous wall''), is formed mainly by the tympanic membrane, partly by the ring of bone into which this membrane is inserted. This ring of bone is incomplete at its upper part, forming a notch (notch of Rivinus), close to which are three small apertures: the "iter chordæ posterius", the petrotympanic fissure, and the "iter chordæ anterius". The iter chordæ posterius (aper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isle Of Wight
The Isle of Wight ( ) is a county in the English Channel, off the coast of Hampshire, from which it is separated by the Solent. It is the largest and second-most populous island of England. Referred to as 'The Island' by residents, the Isle of Wight has resorts that have been popular holiday destinations since Victorian times. It is known for its mild climate, coastal scenery, and verdant landscape of fields, downland and chines. The island is historically part of Hampshire, and is designated a UNESCO Biosphere Reserve. The island has been home to the poets Algernon Charles Swinburne and Alfred, Lord Tennyson. Queen Victoria built her summer residence and final home, Osborne House at East Cowes, on the Isle. It has a maritime and industrial tradition of boat-building, sail-making, the manufacture of flying boats, hovercraft, and Britain's space rockets. The island hosts annual music festivals, including the Isle of Wight Festival, which in 1970 was the largest rock music ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Govier Seeley
Harry Govier Seeley (18 February 1839 – 8 January 1909) was a British paleontologist. Early life Seeley was born in London on 18 February 1839, the second son of Richard Hovill Seeley, a goldsmith, and his second wife Mary Govier. When his father was declared bankrupt, Seeley was sent to live with a family of piano makers. Between the ages of eleven and fourteen, he went to a day school and then spent the next two years learning to make pianos. He also attended lectures at the Royal School of Mines by Thomas Henry Huxley, Edward Forbes, and other notable scientists. In 1855, with the support of his uncle, Seeley began to study law but shortly gave it up to pursue a career as an actuary. In the late 1850s, he studied English and mathematics at the Working Men's College and served as a secretary for the college's museum. He also worked in the library of the British Museum, where Samuel Pickworth Woodward encouraged him to study geology. In 1859, Seeley began studies at Sidney S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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