 |
 |
 |
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mammal-like
reptile
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Medial Triassic |
|
Probainognathus
jenseni
|
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Probainognathus
jenseni
|
|
cast
of skull and jaw
( note double jaw joint) |
|
found in
Argentina, South America
8.7 x 6 x 2.8 cm |
