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Denazinemys Nodosa
''Denazinemys'' was a genus of baenid turtle that lived in the Late Cretaceous of New Mexico. The holotype specimen, which ''D. nodosa'' was based on, USNM 8345, consists of a partial carapace and plastron. It came from the De-na-zin Member of the Kirtland Formation, and therefore, ''Denazinemys'' lived in the Kirtlandian, Kirtlandian land-vertebrate age. Many specimens other than the holotype have been assigned to ''Denazinemys''. Distinguishing characteristics Previously, ''Scabremys, Scabremys ornata'' was assigned to ''Denazinemys'' as ''D. ornata''. Below are the features found in ''Denazinemys'' distinguishing the two genera: * a carapace that is sub-triangular with widest dimension posterior (anatomy), posteriorly; * pleural cavity, prepleurals present and touching the first vertebrae medial (anatomy), medially; * the first vertebrae an irregular hexagonal shape with the greatest width posteriorly, contacting anterior (anatomy), anterior second vertebrae; * extracervicals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Australia and Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
