Re: Morrison Dinosaurs

[Tim Williams <twilliams_alpha@hotmail.com>]

Ken Carpenter wrote:

> Sauropods
> Amphicoelias 58 m very rare
> Apatosaurus 27 m common
> Barosaurus 26 m  rare
> Brachiosaurus 23 m rare
> Camarasaurus 18 m very common
> Diplodocus 27 m very common
> Haplocanthosaurus 21 m rare
> Seismosaurus 33 m very rare
> Supersaurus 40 m very rare

There's also _Suuwassea_ (you'll kick yourself for forgetting that one).  
Plus some sauropod genera of controversial  validity, like  _Eobrontosaurus_ 
(?=_Camarasaurus_) and _Dystrophaeus_ (possibly a nomen dubium).  
_Dyslocosaurus_ might be from the Morrison.  I don't know what to make of 
_"Apatosaurus" minimus_.

Andrew McDonald wrote:

> I believe that Palaeopteryx has been omitted.

Probably a nomen dubium.  It's a shame that a potentially iconic name like 
"Palaeopteryx" was squandered on indeterminate material.  Interestingly, the 
name is not registered at Nomenclator Zoologicus.

> How many specimens of
> Marshosaurus are known beyond the type and the referred partial skeleton?

Just those two, AFAIK.

Cheers

Tim