Allen Formation
| Allen Formation Stratigraphic range: Upper Cretaceous |
|
|---|---|
| Type | Geological formation |
| Unit of | Malargüe Group |
| Overlies | Anacleto Formation |
The Allen Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous (middle Campanian to early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation.
Dinosaur eggs are known from the formation.
Indeterminate
A. cabazai
L. australis
"Right coracoid with damaged sternal and omal extremities, and lacking acrocoracoidal process."
L. cholinoi
Elements of the axial and appendicular skeleton of a subadult individual.
L. araukanicus
L. patagonica
"Partial forelimb."
P. schroederi
"Five tail vertebrata, sacral vertebrae, left humerus and rib fragments."
P. powelli
"Dorsal and caudal vertebrae, partial femur."
Q. curriei
Femur and distal tibia.
R. muniozi
"Partial postcranial skeleton."
S. loricatus
W. salitralensis
Fragmentary fossils are known from the formation.
A. sudamericanus
The mammal fauna of the Allen Formation is known from seven teeth, which document the presence of several species.
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