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Dinosaurs A

ALWALKERIA
 
DESCRIBER Chatterjee & Creisler, 1994
TIME Triassic Late
Carnian Norian 
CLASSIFICATION Saurischia Theropoda  
DIET Carnivore
FOSSILSITE India
TYPE SPECIES ALWALKERIA maleriensis
LENGTH  
INFO Alwalkeria (Chatterjee & Creisler, 1994) > Alwalkeria maleriensis (Chatterjee, 1987) >>Walkeria >(Chatterjee,1968) W.maleriensis (Chatterjee, 1968)

Partial skull, the remains of 28 vertebrae, partial femora and an astragalus. The skull is 4 cm long and consists of a partial left maxilla with the distal ends of both dentaries attached. A fragmentary premaxilla lies adjecent to the distal tip of the maxilla. The rostroventral margin of the antorbital fenestra lacks a well-marked ventral margin. The dentary rami and slander, and the teeth are slender and conical mesially and larger and laterally compressed distally; there appear to be no marginal serrations, as so commonly seen on theropod teeth. The vertebrae are poorly preserved, similar in form to other theropods. The dorsals are small, cylindrical, and amphiplatyan, and the bases of the neural arches are excavated but lack pleurocoels. Two caudals are described and indentified becoase of their chevron facets. The femoral head is strongly inturned, the lesser trochanter is positioned low (one quarter of the way down shaft), and the fourth trochanter is large and crested. lying on the mediocaudal side of the shaft. The astragalus is low and hemicylindral, with a low ascending process.

 

 

 

 

 

 

 

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