Ancient Marine Reptiles by Jack M. Callaway (Editor), Elizabeth L. Nicholls (Editor)

By Jack M. Callaway (Editor), Elizabeth L. Nicholls (Editor)

Vertebrate evolution has resulted in the convergent visual appeal of many teams of initially terrestrial animals that now stay within the sea. between those teams are conventional mammals like whales, dolphins, and seals. There also are reptilian lineages (like plesiosaurs, ichthyosaurs, mosasaurs, thalattosaurs, and others) that experience develop into sea creatures. each one of these marine reptiles, usually wrongly known as "dinosaurs", are extinct. This edited booklet is dedicated to those extinct teams of marine reptiles. those reptilian analogs signify important versions of the myriad diversifications that allow tetrapods to reside within the ocean. Key positive factors* First publication in additional than eighty years dedicated completely to fossil marine reptiles* files the most up-tp-date learn on extinct marine reptiles* ready by way of the world's such a lot in demand specialists within the box* good illustrated

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S. , Vol. the popular mind was divided as to whether these images were inferior imitations, on a large scale, of certain animals at the Zoological Gardens ... creations of some eccentricperson's imagination... [or] placed there with the pious purpose of setting clearly before the eyes of the public, as a ? el Figure 5. e.. Mesozoic] Island" of c. 1855 at the Crystal Palace, south London; far from being confined to dinosaurs. these reconstructions included a much fuller range of fossil saurians, including several marine reptiles.

S. and J. B. Delair. 1980. An Irish naturalist in Cuvier's laboratory. The letters of Joseph Pentland 1820-1832. Bulletin of the British Museum (Natural History), Historical Series 6:245-319. Scott, P. and R. Rines. 1975. Naming the Loch Ness monster. Nature 258:466-467. Storrs, G. W. 1984. Elasmosaurusplatyurus and a page from the Cope-Marsh war. Discovery 17(2):25-27. Storrs, G. W. and M. A. Taylor. 1996. Cranial anatomy of a new plesiosaur genus from the lowermost Lias (Rhaetian/Hettangian) of Street, Somerset, England.

He erected a separate subclass, Parapsida, for reptiles with an upper temporal opening, other than sauropterygians and placodonts. The four orders included were Proganosauria (Mesosauria), Ichthyosauria, Protorosauria, and Squamata. The Protorosauria were placed here as presumed ancestors of the ichthyosaurs. Romer (1948) attempted to show a relationship between ophiacodont synapsids and ichthyosaurs based on a comparison of Ophiacodon with his own restoration of the Jurassic ichthyosaur Ophthalmosaurus suggesting an anapsid "pre-ophiacodont" as an ideal ichthyosaur ancestor.

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