Titanosaurs from Malawi

[Tim Williams <twilliams_alpha@hotmail.com>]

This is at the Palaeontologia Electronica website, so I don't know if it 
qualifies as a valid publication.  Therefore, I do not know if Karongasaurus 
gittelmani is a valid genus and species yet (I suspect not).

http://palaeo-electronica.org/2005_1/toc_main.htm#Articles

Sauropod Dinosaurs From The Early Cretaceous Of Malawi, Africa

Elizabeth Gomani

ABSTRACT

At least two titanosaurian sauropod taxa have been discovered in the Early 
Cretaceous Dinosaur Beds of northern Malawi, Africa. One of these, 
_Malawisaurus dixeyi_, is represented by cranial elements, 18 cervical 
vertebrae, 10 dorsal vertebrae, a sacrum, 51 caudal vertebrae, 24 chevrons, 
pectoral elements, pelvic elements, and dermal armor, all of which are 
described and illustrated. The cranial elements indicate that _Malawisaurus_ 
had a short, high macronarian skull. _Karongasaurus gittelmani_ gen. et sp. 
nov. is more derived than _Malawisaurus_ but is represented only by a 
dentary and isolated teeth. Some indeterminate vertebrae may also belong to 
_Karongasaurus_ or another taxon, but not to _Malawisaurus_. The shape of 
the teeth and jaw, and the restriction of teeth toward the anterior part of 
the jaw in _Karongasaurus_ are different from _Malawisaurus_ and suggest 
that _Karongasaurus_ had a long, low skull. Thus, the sauropods from the 
Malawi Dinosaur Beds demonstrate extreme morphological variation in 
titanosaurian jaws, teeth, and probably skull shape. Variation in tooth and 
skull morphology, because of its relevance to feeding, was likely of 
significance in resource partitioning among titanosaurian sauropods in the 
Early Cretaceous ecosystem.