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Pterosaurs from uppermost Maastrichtian of Spain (free pdf)

From: Ben Creisler

A new paper. The link here has the pdf in open access:

Fabio M. DALLA VECCHIA, Violeta RIERA, Josep Oriol OMS, Jaume
The Last Pterosaurs: First Record from the Uppermost Maastrichtian of
the Tremp Syncline (Northern Spain).
Acta Geologica Sinica (English Edition) 87(5): 1198-1127
DOI: 10.1111/1755-6724.12146

Pterosaur bones are for the first time reported from the Tremp
Syncline (Spain) and the southern Pyrenees. They come from the
Torrebilles-2 site (Isona, Lleida Province) in the upper Maastrichtian
part of the Tremp Formation, which falls within the C29r magnetochron.
Fragmentary long bones are referred to the Pterosauria based on their
cortical thinness, micro-architecture, and histological features. They
belong to very large to possibly giant individuals. The most complete
specimen is possibly a partial right femur. The review of the
Maastrichtian pterosaur record shows that only a few specimens can be
referred to the C29r (which contains the K/Pg boundary). The
identification of fragmentary remains could improve our knowledge
about the abundance and distribution of these flying sauropsids just
before the end-Cretaceous mass extinction.