MAKE A MEME
View Large Image
| View Original: | The_Quarterly_journal_of_the_Geological_Society_of_London_(13960243273).jpg (1166x2104) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: The Quarterly journal of the Geological Society of London (13960243273).jpg CHELOOTA AND A TOOTH OF ORNITHOPSIS 241 <br> the matrix containing the unfigured skull and associated bones leads <br> to the conclusion as suggested to me by M Dollo that the cara- <br> pace of this form consisted only of the median row of ossifications <br> together with a series of marginals M Dollo also states that al- <br> though the cranium is very like that of Psephophorus yet there are <br> certain differences and more especially the apparent absence in the <br> premaxillae of the descending process found in that genus and Der- <br> matochelys <br> Under these circumstances I am disposed to regard Chelone gigas <br> as indicating a new genus of Dermatochelyidse for which I pro- <br> pose the name Eosphargis and which may be briefly defined as <br> follows ” Skull and humerus of the general type of Psephophorus ; <br> carapace consisting of a median dorsal row of large carinated plates <br> of which the width largely exceeds the length and probably also of <br> a series of large marginals <br> 6 Dacochelys n gen from the London Clay <br> Among the numerous remains of Chelonians from the London Clay <br> in the British Museum is the imperfect anterior extremity of the man- <br> dible of a large form No 39257 hitherto placed with the Chelonidse <br> but which has evidently nothing to do with that group The whole of <br> the symphysis is nearly entire and affords very distinctive characters <br> The outer alveolar ridge is indeed somewhat broken but sufficient <br> remains to show that it was elevated mesially into a sharp point <br> Fig 6 ” Restoration of the Anterior Extremity of the Mandible of <br> Dacochelys Delabechei viewed from in front and from the right <br> from the London Clay § nat size <br> while laterally it had a number of tooth-like processes similar to <br> those in the Batagurs and in Testudo elephantina This character <br> at once distinguishes the specimen from all members of the Chelonidae <br> in which the alveolar borders of the jaws are invariably smooth <br> Within this alveolar ridge is a deep groove succeeded inwardly by a <br> second ridge which appears to have been likewise serrated and is <br> higher than the outer one In the middle line the inner ridge is <br> developed into a huge triangular process projecting far above the <br> t2 36940032 113696 51125 Page 239 Text 45 http //www biodiversitylibrary org/page/36940032 1889 Geological Society of London NameFound Chelone gigas NameConfirmed Chelone gigas Owen NameFound Chelonidae NameConfirmed Chelonidae Oppel 1811 EOLID 8123 NameFound Dacochelys NameConfirmed Dacochelys NameBankID 4135952 NameFound Eosphargis NameConfirmed Eosphargis EOLID 4519534 NameBankID 4157938 NameFound Ornithopsis NameConfirmed Ornithopsis NameBankID 4270321 NameFound Psephophorus NameConfirmed Psephophorus EOLID 4519537 NameBankID 4315736 NameFound Testudo elephantina NameConfirmed Testudo elephantina DUMÉRIL 1835 EOLID 795003 NameBankID 11068739 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 45 1889 Geology Periodicals Smithsonian Libraries bhl page 36940032 dc identifier http //biodiversitylibrary org/page/36940032 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-21 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13960243273 2015-08-26 06 50 53 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1889 Photos uploaded from Flickr by Fæ using a script | ||||
.jpg){kind=link}
