[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Dinosaur Genera List update #196



Dinogeorge@aol.com wrote:

> During 2002, the Dinosaur Genera List grew by 31 new names (#933 through
> 963), of which only 14 represented valid, scientifically described dinosaurs;
> eight were dinosaur nomina nuda published in non-scientific articles; two
> were names in publicly available dissertations; and seven at one time or
> another had been considered dinosaurian but are presently not "non-avian
> dinosaurs" (that is, they are non-non-avian dinosaurs):
>
> Scientifically described dinosaur genera (in the order added) [14]:
> Agnosphitys
> Megapnosaurus (replacement name for Syntarsus, preoccupied)
> Sinovenator
> Liaoceratops
> Hylosaurus (junior synonym of Hylaeosaurus)
> Shenzhouraptor
> Jeholornis
> Erliansaurus
> Cryptovolans
> Omnivoropteryx
> Scansoriopteryx
> Incisivosaurus
> Epidendrosaurus
> Crichtonsaurus

_Shenzhouraptor_ and _Jeholornis_ are described as birds (avian dinosaurs).
Jaime Headden suspects that they should perhaps be considered congeneric.  In
spite of cranial similarities to oviraptorosaurs, _Omnivoropteryx_ is also
described as an avian dinosaur (a bird).

If you knock these 3 "avian dinosaurs" from the list, and remove the two
nomenclatural exercises, there are but 9 new "non-non-avian" valid,
scientifically described dinosaur names for 2002.  You will note that 6 of the 9
came from Liaoning, China, and _Epidendrosaurus_ was excavated from Ningcheng
County nearby.  Make that 6 out of 10 if you want to include the scientifically
described _Aucasaurus_ George mentions.  Another remarkable year for eastern
Chinese vertebrate paleontology (especially if you include the birds).

Hey, how come _Cryptovolans pauli_ didn't make headlines in 2002?  It looks to 
be
what _Archaeovolans_ was purported to be.  Whether you fall in love with the
paper that describes _Cryptovolans_ or not, the specimens are crucial to an up 
to
date understanding of the early evolution of birds and are notable for providing
evidentiary support for Gregory S. Paul's secondarily flightless dromaeosaur
hypothesis.  Hopefully _Archaeovolans_ will get its due in mainstream
paleontological circles soon, and hopefully more wonderful finds will issue 
forth
from the astonishing fossil beds of China.

--------Ralph W. Miller III (feathered dinosaur enthusiast)
            ralph.miller@alumni.usc.edu

Non-non-non-non-non-non-non-non-non-non-non-avian.  Or not.