Re:Abelisaur & Titanosaur migratory routes

[Fred Bervoets <bervoets@nrc.nl>]

>1) No Abelisaur or Titanosaurs have been found in the northern parts of
>North America and Asia with any certainity.  

Oke

>2) Assumption made that Abelisaurs & Titanosaurs originated in South >America.

Why this assumption the oldest Abelisaurid i know of is Tarascosaurus
salluvicus (Theropoda Neoceratosauria Abelisauridae)  from the Cretaceous
Late Campanian (83 74 MYA) found in the Fuvelian Beds, ?Bouche-du-Rhone,
France Europa. While Abelisaurus comahuensis    (Theropoda Neoceratosauria
Abelisauridae ) is from the Cretaceous Late Maastrichtian (74 65 MYA) of the
Allen Formation, Rio Negro, Argentina, so later. 

And the "oldest" Titanosauridae i know Atlantosaurus montanus, is from the
Late Jurassic Tithonian (152.1 145.6 MYA) from the US and Canada while all
the South American Titanosauridae are from the Late Cretaceous.

>Questions

>2)Is Titanosaurus falloti Hoffet, 1942 really a titanosaur or is it
something >else?

Newly discovered material (a complete hind limb and 30 caudal vertebrae)
from Tang-Val, Laos indicates that the species does not belong to the genus
Titanosaurus and may represent a new genus (Taquet, Ba

With regards
Fred Bervoets
fb@nrc.nl