Soon afterwards, the morphology became much better known. In 1823, Thomas Clark reported an almost complete skull, probably belonging to "Thalassiodracon", which is now preserved by the British Geological Survey as specimen BGS GSM 26035. The same year, commercial fossil collector Mary Anning and her family uncovered an almost complete skeleton at Lyme Regis in Dorset, England, on what is today called the Jurassic Coast. It was acquired by the Duke of Buckingham, who made it available to the geologist William Buckland. He in turn let it be described by Conybeare on 24 February 1824 in a lecture to the Geological Society of London, during the same meeting in which for the first time a dinosaur was named, "Megalosaurus". The two finds revealed the unique and bizarre build of the animals, in 1832 by Professor Buckland likened to "a sea serpent run through a turtle". In 1824, Conybeare also provided a specific name to "Plesiosaurus": "dolichodeirus", meaning "longneck". In 1848, the skeleton was bought by the British Museum of Natural History and catalogued as specimen BMNH 22656. When the lecture was published, Conybeare also named a second species: "Plesiosaurus giganteus". This was a short-necked form later assigned to the Pliosauroidea.