[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
RE: Theropod Database Christmas update
(a month ago, before getting lost in my inbox) Tim Williams wrote-
BTW, what's the source/citation for putting _Yaverlandia_ in the
Nothing published. Sullivan (2006) noted "Presently, Yaverlandia bitholus
is being restudied by Darren Naish, who believes it to be a theropod, based
on a number of characters seen in the holotype, including: (1) bilobed
cerebral concavity; (2) narrow olfactory tract; (3) ventral concave orbital
margins; (4) small, closely appressed olfactory bulbs, among other features
(D. Naish, pers. communication, 2004)." I added it to my coelurosaur
analysis (as the small olfactory lobes are a coelurosaurian character) and
it came out next to Saurornithoides junior, largely because both taxa seem
to have rugose postorbitals. But that's pretty weak evidence.
Also, I'm curious about whatever happened to "Tonouchisaurus", an
undescribed taxon (nomen > nudum) that was said to be a primitive
tyrannosaur. Is there a specimen number?
Still undescribed. No specimen number that I know. Barsbold did tell me it
is now known to have three manual digits, so there goes the original reason
for placing it in Tyrannosauroidea. Of course, we now know basal
tyrannosauroids (Dilong, Guanlong, Tanycolagreus?) were tridactyl too.