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Proganochelys is a genus of extinct, primitive stem-turtle.Proganochelys was named by Georg Baur in 1887 as the oldest turtle in existence at the time. The name Proganochelys comes from the Greek word ganos meaning 'brightness', combined with prefix pro, 'before', and Greek base chelys meaning 'turtle'.
This list of the prehistoric life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas. Precambrian [ edit ]
People first uncovered fossils around San Pedro High School in 1936. They were ancient shells belonging to snails and other mollusks from tens of thousands of years ago.
Mosasaur remains were also discovered in Africa and California. [10] In 1967 Dale Russell published a scientific monograph dedicated to mosasaurs. [11] Embryonic remains in the 1990s confirmed that mosasaurs gave live birth like in ichthyosaurs. [12]
Fossils of the species are rarely found in California. While the museum is working to date the fossil, the museum said it knows the specimen “was found in an Ice Age sediment deposit, placing it ...
Texas cooter (Pseudemys texana) left, and red-eared slider (Trachemys scripta) right, basking in the Colorado River, Travis County, Texas (12 April 2012). The Texas river cooter is a relatively large turtle, capable of growing to a shell length of 12+ inches (30.5 cm). They are green in color, with yellow and black markings that fade with age.
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The Texas spiny softshell turtle (Apalone spinifera emoryi) is a subspecies of the spiny softshell turtle in the family Trionychidae. The subspecies is native to the southwestern United States and adjacent northeastern Mexico .