1. A large pterosaur femur from the Kimmeridgian, Upper Jurassic of Lusitanian Basin, Portugal.
- Author
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BERTOZZO, FILIPPO, CAMILO DA SILVA, BRUNO, MARTILL, DAVID, VORDERWUELBECKE, ELSA MARLENE, AURELIANO, TITO, SCHOUTEN, REMMERT, and AQUINO, PEDRO
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FEMUR , *FEMUR head , *FOSSILS , *SKELETAL maturity , *PTEROSAURIA , *FOSSIL hominids - Abstract
The pterosaur fossil record in Portugal is scarce, comprising mainly isolated teeth and rare postcranial material. Here, we describe a well-preserved right proximal femur of a pterodactyloid pterosaur from the Kimmeridgian, Upper Jurassic Praia da Amoreira-Porto Novo Formation of Peniche, Portugal. It is noteworthy for its relatively large size, compared to other Jurassic pterosaurs. It shows affinities with dsungaripteroids based on a combination of features including the bowing of the shaft, the mushroom-like cap of the femoral head, and the distinctly elevated greater trochanter. The femur has a relatively thinner bone wall compared to dsungaripterids, and is more similar to basal dsungaripteroids. A histological analysis of the bone cortex shows it had reached skeletal maturity. The preserved last growth period indicates fast, uninterrupted growth continued until the final asymptotic size was reached, a growth pattern which could best be compared to pterodactyloid femora from the Early Cretaceous. The specimen is the second confirmed report of a dsungaripteroid from the Jurassic, and it is the first record of this group from the Iberian Peninsula. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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