Re: Latest-Surviving Camarasaurs?

["Mickey_Mortimer" <Mickey_Mortimer@email.msn.com>]

Alan Coulson wrote-

> Hi- does anyone know how far into the Cretaceous Camarasaurs
> survived? I've seen a few described from the Early Cretaceous, but I know
> I've missed some of the African and/or Asian taxa. Thanks in advance for
> any information you can provide

Cretaceous camarasaurids are-

Aragosaurus Sanz, Buscalioni, Casanovas and Santafe 1987
A. ischiaticus Sanz, Buscalioni, Casanovas and Santafe 1987
Hauterivian, EC
Las Zabacheras Beds, Spain

Chondrosteosaurus Owen 1876
C. gigas Owen 1876
Barremian, EC
Upper Weald Clay, England

undescribed Camarasaurid (Britt, Stadtman, Scheetz and McIntosh 1997,
Kirkland, Lucas and Estep 1998)
Barremian, EC
Yellow Cat Member of Cedar Mountain Formation, Utah, US

undescribed Camarasaurid (De Klerk, Forster, Ross, Sampson and Chinsamy
1998)
Berriasian-Valanginian, EC
Kirkwood Formation, South Africa

unnamed Camarasaurid (Lee, Yang and Park 1997)
EC
Hasandong Formation, Korea

undescribed Camarasaurid (Azuma 1991)
Aptian, EC
Kitadani Formation of the Akaiwa Subgroup of the Tetori Group, Japan

The last two are only knon from teeth and I wouldn't be surprised if they
were actually euhelopodids.  Thus, I suppose Chondrosteosaurus and the Cedar
Mountain form are the youngest taxa that can be placed in the Camarasauridae
with a fair amount of certainty, both living in the Barremian.

Mickey Mortimer