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New Triassic sauropod from Thailand
As promised (see
http://www.cmnh.org/fun/dinosaur-archive/2000Sep/msg00093.html), at least
one of the list of new taxa that Mike de Sosa asked about
(http://www.cmnh.org/fun/dinosaur-archive/2000Sep/msg00082.html) is now
Buffetaut, E., V. Suteethorn, G. Cuny, H. Tong, J. Le Loeuff, S. Khansubha &
S. Jongautchariyakul. 2000. The earliest known sauropod dinosaur. Nature
Describes _Isanosaurus attavipachi_ (after Isan, local name for northeaster
Thailand, and P. Attavipach, former Director General of the Thai Dept. of
Mineral Resources) from the Nam Phong Fm. (either late Norian or Rhaetian,
so Late Triassic). A cervical, dorsal, six caudals, neural arch of a
posterior dorsal, two chevrons, fragments of ribs, right sternal plate,
scapula, and femur are known.
Although no phylogenetic analysis is done here, it is considered a very
basal sauropod. Femur is 65 cm long, suggesting a 6.5 m long animal: lack
of neruocentral fusion suggests that it wasn't fully grown.
Thomas R. Holtz, Jr.
Department of Geology Director, Earth, Life & Time Program
University of Maryland College Park Scholars
College Park, MD 20742
Phone: 301-405-4084 Email: firstname.lastname@example.org
Fax (Geol): 301-314-9661 Fax (CPS-ELT): 301-405-0796