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Acostasaurus
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Acostasaurus

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Acostasaurus (meaning "Acosta's lizard") is an extinct genus of possibly Thalassophonean pliosaurid known from the Barremian of the Paja Formation, Colombia. The type specimen, UNDG R-1000, is known from a near complete skull, and postcranial elements including a complete hindlimb and various vertebrae. The specimen has an estimated size of over in length.

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Acostasaurus cranial reconstruction.png
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5
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taxon name
Acostasaurus
start time
130000000-
end time
120000000-
Commons category
Acostasaurus
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  • Description
  • Classification
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Acostasaurus (meaning "Acosta's lizard") is an extinct genus of possibly Thalassophonean pliosaurid known from the Barremian of the Paja Formation, Colombia. The type specimen, UNDG R-1000, is known from a near complete skull, and postcranial elements including a complete hindlimb and various vertebrae. The specimen has an estimated size of over in length.

== Description == thumb|left|Reconstruction The type specimen is noted for possessing several features that pertain to a subadult individual: for example, the sagittal crest is not fully ossified, as well as possessing undeveloped palatine wings. It is possible however that Acostasaurus, like other plesiosaurs, was paedomorphic.

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