Name:
Gegepterus
(ge ge wing).
Phonetic: Ge-jep-teh-rus.
Named By: Wang Xiaolin, Alexander Kellner, Zhou
Zhinge, & Diogenes de Almeida Campos - 2007.
Classification: Chordata, Reptilia, Pterosaur,
Pterodactyloidea, Ctenochasmatidae.
Species: G. changi (type).
Type: Filter feeder.
Size: Uncertain due to incomplete fossil material.
Known locations: China, Liaoning Province - Yixian
Formtation.
Time period: Barremian to Aptian of the Cretaceous.
Fossil representation: Initially just a skull and
partial post cranial remains. A second specimen discovered in 2011
filled in some of the gaps as well as revealing the presence of
pycnofibres.
If
you are confused by the name 'ge ge wing', 'ge ge' actually means
princess. Gegepterus was called this because of the
extremely gracile
nature of its build, looking fragile even for a pterosaur. The reason
for the long thin skull of Gegepterus is most
probably a specialisation
for filter feeding like other members of the Ctenochasmatidae. In fact
Gegepterus is the first confirmed member of this
group discovered in
China. Previously ctenochasmatids were only known from Europe and South
America, and although other pterosaur discoveries in China have been
thought to be attributable to the group, the skulls and dentition were
never preserved.
For
the purpose of filter feeding, Gegepterus had up to
one hundred and
fifty small and fine teeth. Gegepterus would have
sifted through mud
and silt, allowing it to drain out between the gaps in its teeth which
would have been two small for small invertebrates to pass through. Once
the invertebrates were trapped Gegepterus had its
meal.
Further reading
- A new pterosaur (Ctenochasmatidae, Archaeopterodactyloidea) from the
Lower Cretaceous Yixian Formation of China. Cretaceous Research
28:245-260. - X. Wang, A. W. A. Kellner, Z. Zhou & D. A. Campos
- 2007.
- Important features of Gegepterus changae (Pterosauria:
Archaeopterodactyloidea, Ctenochasmatidae) from a new specimen. -
Vertebrata PalAsiatica 49(2): 172-184. - Jiang Shun-Xing & Wang
Xiao-Lin - 2011.
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