Re: new papers

[jay nair <sappororaptor@yahoo.com>]

I had no idea that this paper existed.
 Apparantly it's quite a substantial report, 108 pages
of it and with 10 plates (large foldout ones in the
style of old) and a quarry map to go.
It's dated December 2004, which is also interesting in
that it wasn't mentioned for 6 months.

National Science Museum (National History Institute)
3-23-1 Hyakunincho
Shinjuku-ku, Tokyo 169-0073
Japan

Thanks to dino-pantheon for the info.

Sappororaptor


 <pantheon@dino-pantheon.com> announced: 

National Science Museum Monographs No.26
ISSN 1342-9574

A NEW SPECIMEN OF APATOSAURUS AJAX
(SAUROPODA: DIPLODOCIDAE) FROM
THE MORRISON FORMATION (UPPER JURASSIC)
OF WYOMING, USA

Paul Upchurch, Yukimitsu Tomida, and Paul M. Barrett
National Science Museum, Tokyo December, 2004

Abstract
 In 1993, a nearly complete postcranial skeleton of
Apatosaurus was recovered from the Morrison Formation
(Upper Jurassic: Kimmeridgian - Tithonian) near
Thermopolis, Wyoming (USA). This specimen was
purchased by the National Science Museum, Tokyo, where
it has been mounted for public display. Description of
this new Apatosaurus material has 
yielded additional anatomical data that have been used
to revise the generic diagnosis
and species-level taxonomy of the genus. A
specimen-level cladistic  analysis
of individuals referred to Apatosaurus identifies
hitherto unrecognized phylogenetic structure and
indicates the presence of four valid  species:
A. ajax (the type species), A.excelsus, A.louisae,
A.parvus (comb. 
nov.). The latter species is based on material of
?eElosaurus?f parvus from the
Morrison Formation of Sheep Creek, Wyoming (USA). The
cladistic analysis  indicates
that the Tokyo Apatosaurus can be referred to A. ajax,
which makes the current study the most detailed
description of this genotype species.
Revised generic and specific diagnoses have allowed
re-evaluation of 
various Specimens that have previously been assigned
to Apatosaurus, including juvenile material from
Oklahoma.





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