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Genuine Triassic Keichousaurus Fossil in Matrix #6
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Genuine Triassic Keichousaurus Fossil in Matrix #6
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We are not your only choice, but should be your best choice Genuine Triassic Reptile,Keichousaurus Fossil in Matrix #6 Origin: Guizhou,China Material: Fossil Fossil Dating: Triassic,230--195 million years ago Matrix Dimensions(inch): 7.9" Length*8.7"Width Keichousaurus Dimensions(inch): 9.1"length Total Weight: 4kg with package Payment instruction: We accept Paypal,Bank Transfer,Western Union,Money Order/Personal Check via register mail. NO POSTAL MONEY ORDER. Condition: Excellent as picture! About Keichousaurus: This is a fine example of a juvenile semiaquatic reptile from the Triasssic of China known as Keichousaurus. The Systematics of the Keichousaurus is Phylum Chordata,Subphylum Vertebrata,Class Reptilia,Subclass Sauropterygia.and as such were related to their contemporaries the Nothosaurs (indeed, at one point they were referred to the Nothosauridae). Usually it has small to medium (< ~1m) in size. Skull unusually small; jaws not elongated; pterygoids expanded to completely cover brain case ventrally; upper fenestra smaller than large orbit; strong upper bar; no lower fenestra; post-orbital skull short; quadrate embayed and slender stapes (impedence-matching ear for airborne vibrations and thus amphibious?); long (18 cervicals) neck; three sacral vertebrae; dorsoventral extension of vertebral spines near base of tail; dorsal verts have low neural spines, thickened and dense (pachyostosis); pachyostosis extends to ribs in more derived species; girdles poorly ossified (thus obligate marine?); limbs not highly derived for aquatic life; restricted to epicontinental & coastal areas.The neck is long but, unlike the Nothosauria the head is very small (like the eosuchian Claudiosaurus), so pachypleurosaurs probably fed on very small fish and crustacea.Relatively small dorsal temporal openings in the skull also clearly distinguish the Pachypleurosaurs from the Nothosaurian genera such as Lariosaurus, Ceresiosaurus, Corosaurus, Paranothosaurus and Simosaurus, in all of which the upper temporal openings are much larger than the orbits.The tail is deep and would have been used as a swimming organ. Item Description: is a Genuine Skeleton Rare Reptile,Keichousaurus Fossil, preserved well specimen was originally from Guizhou,China.This item kept a complete intact 100% original skeleton, complete Vertebra and Ribs,the claws is clearly seen.No REPAIR on the specimen itself though the slab has some splits,which does not influence the specimen.From the photos you will see the great details of the Keichousaurus bone structure from the head to the tip of its tail,with claws,the head is distorted to one side .Good item for your collection! Please be confident on your bidding! Shipping: We ship to worldwide.EMS cost to US is $71.00,4-6 business days to arrive.Please email me on the shipping cost if you are located in other areas. We offer discount on postage if you purchase one more merchandise from us. Terms and Conditions: 
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