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Paleontologists have found a strange hunchback dinosaur

13 Sep

strange, hunchback ,dinosaurSpanish paleontologists have discovered the remains of a new teropodnogo dinosaur of the Cretaceous period, whose age is estimated at 125 million years.
Animal received the scientific name Concavenator corcovatus. His almost complete skeleton was in the limestone; discovery was made back in 2003 in central Spain. In the early Cretaceous period, this area was probably a swampy area and resembled the Everglades in southern Florida.
The total length of the body C. corcovatus – about six meters. In the study of his remains, scientists noted an increase in upper arch of the eleventh and twelfth vertebrae, but to determine what functions were performed by forming a “hump”, they still can not: it is necessary to find other skeletons with similar changes in the vertebrae. “It is safe to say only that it is very unusual,” – says paleontologist at Cambridge University, Roger Benson (Roger Benson).

No less strange appearance has ulna dinosaur on which the number of spines. They resemble the flapping mounds of modern birds, serving for attachment of feathers.
Scientists have identified a C. corcovatus in the family and superfamily karharodontozavridov Allosauroidea. Not one representative Allosauroidea traces of feathers (or something similar) has not previously been found, whereas in the neighboring branch of the evolutionary tree – in the group Coelurosauria (Coelurosauria) – Ā«feathered” type are available. The probability that during the evolution of two independent branches have evolved similar structures, is small, hence some of their seeds have been born in the ancestors Coelurosauria and Allosauroidea of the group Neotetanurae. This removes a possible moment of the feathers in the middle of the Jurassic period, to mark the age of 175-161 million years.
It should also be noted that the remains of C. corcovatus were found on land belonging to Laurasia, the northern supercontinent. The vast majority of known skeletons karharodontozavridov discovered in southern areas, while the age of the samples was generally 100-90 million years old.

 
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Posted by on September 13, 2010 in Dinosaurs

 

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