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Arsenic and Old Papers
Hi All! -
I was out for a week, so I'm glad others have filled in with citations
for the batch of new papers (_Gigantoraptor_, _Eocursor_, _Yunnanosaurus_,
etc.) that came in while I was out! I'll say this, though: if you're going
to be anywhere in the vicinity of Miami over the next year, pop in to the
Miami Science Museum (http://www.miamisci.org/) to see "The Dinosaurs of
China." Terrific opportunity to see some specimens you wouldn't get to see
otherwise without traveling to some far-flung places in China, including
"_Dilophosaurus_" _sinensis_, _Jingshanosaurus_, two _Lufengosaurus_
species, _Sinraptor hepingensis_, a couple of _Mamenchisaurus_ species,
_Omeisaurus_, _Huayangosaurus_, _Tuojiangosaurus_ (cast),
_Yangchuanosaurus_, _Shunosaurus_, _Tsintaosaurus_, and a bunch of Liaoning
specimens from the Beijing Museum of Natural History (some undescribed; some
possibly or probably not pertaining to the taxa to which they're
attributed -- hence the quotes below-- but still cool all the same),
including _Caudipteryx_, "_Sinornithosaurus_", _Confuciusornis_,
"_Chanchengornis_","_Longchengornis_", _Sinornis_ (cast), _Longirostravis_,
and "_Microraptor_", as well as some plants, insects, fish, and other
reptiles from the Jehol Group. A cast of one of the new _Gansus_ specimens
is there, too, as is a really fabulous Gary Staab restoration of the
quill-tailed _Psittacosaurus_.
I'm sure that there's a zillion posts on the list already about all the
new goodies in the new _JVP_, so I won't bother listing those here.
Instead, here's something interesting: a Pakistani theropod that has a
name...sort of. This paper:
Malkani, M.S. 2006. First rostrum of carnivorous Vitakridrinda (abelisaurid
theropod dinosaur) found from the latest Cretaceous Dinosaur Beds (Vitakri)
Member of Pab Formation, Alam Kali Kakor locality of Vitakri area, Barkhan
District, Balochistan, Pakistan. Sindh University Research Journal (Science
Series) 38(2):7-26.
ABSTRACT: The finding of rostrum of Vitakridrinda theropod dinosaur is the
first one from Pakistan. It is found from the the Latest Cretaceous Dinosaur
beds/Vitakri member of upper part of Pab Formation in Alam Kali Kakor
locality of Vitakri region, Barkhan District, Balochistan, Pakistan. The
newly discovered rostrum consists of articulated premaxilla alongwith
narial, dorsolateral and lateral processes; external naris; partial nasal,
palate and maxilla. The subterminal rostrocaudally subcircular nares, V
shape of anterior snout and teeth characters representing pleisiomorphies of
theropods. The ornamentation like pits and grooves on the surface of rostrum
is the synapomorphy of abelisaurids. Many autopomorphies and other different
useful characters of this rostrum are described here. The external nares
seem to be bounded by the premaxilla only. The palate is well exposed at
cross section. This snout is found in the site of previously reported
basioccipital condyle articulated with partial braincase and a pair of
proximal femur of Vitakridrinda. Although fragmentary these three masses
associate and belong to one animal. This specimen will facilitate
comparisons with the Gondwanan as well as Laurischian forms.
It has bite mark, puncture, teeth impression and the embedded teeth
revealing confrontation between Vitakridrinda and its combatant belonging to
same or different species. The skull parts of this theropod are found with
the partial skull of adult/subadult titanosaurs. Its occurrences with
adult/subadult titanosaur suggest that the theropod came to the titanosaur
animnal for feed subsequent fighting with other theropod cauld cause its
death. The discovery of Vitakridrinda abelisaurids, alongwith saltasaurids,
and baurusuchid from Pakistan broadens the distribution and indicates a
close affinity with South America, Madagascar and India of Gondwanaland.
These assemblages underscore many taxonomical features useful for
paleobiology, paleobiogeography, phylogeny, behaviour like fighting,
scavenging, predatory and, interaction among other species.
(available on-line at http://usindh.edu.pk/surj/vol_38_02_2006.pdf, though
you'll have to clip out all the extraneous pages -- also beware that the
formatting in the PDF is screwy) utilizes the name _Vitakridrinda_ for an
ostensible abelisaurid from the Pab Formation. However, it cites "Malkani
(2004)" as the paper that establishes the name, but that paper is cited in
the bibliography as "in review." So it's a _nomen nudum_ for now. The
biblio for the paper also lists a number of other Pakistani publications by
Malkani on dino material from this area (both Jurassic and Cretaceous); I'm
presently trying to get a hold of all of them, so more bulletins will come
as events warrant. At any rate, a species name (_sulaimani_) for this
animal does appear in a press story (where the genus name is misspelled --
at http://www.dawn.com/weekly/science/archive/060325/science5.htm), but it's
still a _nomen nudum_, AFAICT.
Kinda like "Laurischian," myself!
Along similar lines, the name (apparently of an armored titanosaur)
_Balochisaurus_ is mentioned alongside that of _Vitakridrinda_ in an annual
progress report for the Geological Survey of Pakistan (available at
http://www.gsp.gov.pk/achievements/pdfs/Annual_Progress_2004-2005.pdf);
again, no species name given, and this time, no citation, although I
wondered if it's one of the papers in the biblio of the _Vitakridrinda_
paper. Interestingly, the dawn.com story I cited above also lists the names
of this and three other sauropods from this unit: _Balochisaurus malkani_,
_Khateranisaurus barkhani_, _Marisaurus jeffi_ and _Sulaimansaurus
gingerichi_. If _Balochisaurus_ is indeed named in one of the Malkani
authored papers cited in the aforementioned biblio, then it was named after
the author...? Doing some further poking around, I found:
Malkani, M.S. 2006. Lithofacies and lateral extenstion of latest Cretaceous
Dinosaur Beds from Sulaiman Foldbelt, Pakistan. Sindh University Research
Journal (Science Series) 38(1):1-32.
(http://usindh.edu.pk/surj/vol_38_01_2006.pdf, a read-only file from which
the extraneous pages cannot be deleted or the relevant pages excised), which
also mentions _Vitakridrinda_ and these sauropods (calling one
_Khetranisaurus barkhani_, another _Sulaimanisaurus gingerichi_), as well as
a fifth (_Pakisaurus balochistani_), and another from the Late Jurassic
(_Brohisaurus kirthari_). The biblio of this seems to indicate all of these
names as being "in review" or "in process," so they're all _nomina nuda_,
sadly. Still, somethings to watch out for!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jerry D. Harris
Director of Paleontology
Dixie State College
Science Building
225 South 700 East
St. George, UT 84770 USA
Phone: (435) 652-7758
Fax: (435) 656-4022
E-mail: jharris@dixie.edu
and dinogami@gmail.com
http://cactus.dixie.edu/jharris/
"Trying to estimate the divergence times
of fungal, algal or prokaryotic groups on
the basis of a partial reptilian fossil and
protein sequences from mice and humans
is like trying to decipher Demotic Egyptian with
the help of an odometer and the Oxford
English Dictionary."
-- D. Graur & W. Martin (_Trends
in Genetics_ 20[2], 2004)