Drepanosaurus ("Sickle lizard") is a genus of tree-dwelling reptile from the Triassic period of Italy and the United States. While it's skull remains unknown, it is theorized to have had a strangely bird-like head like that of its relatives. The animal is also known for its large back ridge, its spike-like tail, which may have been used to anchor it on trees while feeding, and the massive index claws on its front feet, which may have been used to dig into bark in search of its insect prey.

In The Land Before Time

A Drepanosaurus briefly appears in The Land Before Time IV: Journey through the Mists, where it is seen eyeing a dragonfly before being distracted by Petrie passing by.

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