Name:
Epidexipteryx
(Display feather).
Phonetic: Ep-ee-dex-teh-ricks.
Named By: Zhang Fucheng et al - 2008.
Classification: Chordata, Reptilia, Dinosauria,
Saurischia, Theropoda, Avialae, Scansoriopterygidae.
Species: E. hui (type).
Type: Carnivore.
Size: 25 centimetre body length, 44.5 centimetres
including the tail.
Known locations: China - Daohugou Beds.
Time period: Aalenian to Kimmeridgian of the
Jurassic.
Fossil representation: One specimen.
Epidexipteryx
was a very special find as not only is it one of the earliest
'dino-birds' it also had highly ornate tail feathers. These feathers
are thought to have been similar to those of a peacock, and as display
feathers, possibly only present in the males for the purpose of
attracting females. This precedent can be seen in hundreds of different
bird species that can be observed all over the world today.
Epidexipteryx also had a covering of smaller but
primitive feathers
over the rest of its body.
Similarities
in the skull of Epidexipteryx and later
oviraptosaurs, may suggest that
Epidexipteryx is indicative of the type of dinosaur
that was ancestral
to the oviraptosaurs. Part of this similarity is that the lower jaw
curved down and away from the upper jaw, especially towards the end.
This meant that the lower front teeth always pointed forwards instead
of up into the upper jaw. This was probably to facilitate prey capture
for a specific kind of prey.
Further reading
- A bizarre Jurassic maniraptoran from China with elongate ribbon-like
feathers. - Nature 455:1105-1108. - F. Zhang, Z. Zhou, X. Xu, X. Wang
& C. Sullivan - 2008.