|Search|Dinosaurs|A|Timescale|
|Late Triassic|Map|Early Jurassic|Map|Middle Jurassic|Map|Late Jurassic|Map|Early Cretaceous|Map|Late Cretaceous|Map|
|Ca|No|Rh|He|Si|Pl|To|Aa|Ba|Ba|Ca|Ox|Ki|Ti|Be|Va|Ha|Ba|Ap|Al|Ce|Tu|Co|Sa|Ca|Ma|
 
Nomina Dubia Misspelling No Dinosaur Illustration Inc. Sedis Type species Eggs Skin Sail Skull Genera


Dinosaurs A

ANTARCTOSAURUS
   
DESCRIBER Huene,1927
TIME Cretaceous Late
Campanian Maastrichtian
CLASSIFICATION Saurischia Sauropodomorpha Sauropoda Titanosauria 
DIET Herbivore
FOSSILSITE Argentina Uruguay Chile Brazil 
TYPE SPECIES ANTARCTOSAURUS wichmannianus
LENGTH 18 meter
INFO Antarctosaurus > A.wichmannianus (Huene,1927) A.giganteus (Huene,1927) > A.brasiliensis (Arid & Vizotto,1972)   

A.wichmannianus is known from a supposedly associated partial skeleton of a very large animal, consisting of a cranium, partial mandible, fragmentary cervical, scapula, incomplete humerus, metacarpus, incomplete ischium , femur, tibia, fibula, metatarsus, and fragments. Other specimens of a large animal (Bonaparte and Bossi,1967) have been referred to this genus. 

Among the distinguishing features of the skull fragment are the very slender parasphenoid ( in sharp contrast to those of Camarasaurus and especially Quaesitosaurus) and the large prefrontal, whose articular surface with the frontal occupies more than half of the rostral margin of that element and suggests that the missing nasal must be quite different from that of either Diplodocus or Camarasaurus

The mandible is square in front like that of Diplodocus. Largely on the basis of the similarities in the mandible and weak dentition, Huene,1929 has restored the skull along the lines of Diplodocus, but much of this restoration is hypothetical. A single badly preserved cervical is of no diagnostic value.

 

 

 

 

 

 

 

Hosted by uCoz