A Turonian pterosaur turnover?

The early Cretaceous had a great diversity of pterosaurs. All four major groups of pterodactyloid - Archaeopterodactyloidea, Dsungaripteridae, Pteranodontoidea, and Azhdarchoidea - are present, and very diverse (Barrett et al., 2008). Even a few anurognathids were still present until at least the Aptian. By the end of the Cretaceous, this diversity had been reduced to … Continue reading A Turonian pterosaur turnover?

On the paratype of Santanadactylus brasiliensis

Santanadactylus brasiliensis is one of the many Romualdo Formation pterosaurs, named by P.H. de Buisonje (1980). The holotype is University of Amsterdam M 4894, an associated humerus and scapulocoracoid. The humerus looks pretty standard for Anhangueria, and it likely belongs to this clade (in fact I would not be surprised if it is within Anhanguera … Continue reading On the paratype of Santanadactylus brasiliensis

The Romanian azhdarchid mandible: the “missing piece”?

Vremir et al. recently published a paper on a new partial mandible of a large (+8 m wingspan) Azhdarchoid pterosaur from Romania. This specimen was collected in 1984 and is... not particularly well-preserved, but it is informative enough to give us an idea of its relations. The authors tentatively proposed a position as a primitive … Continue reading The Romanian azhdarchid mandible: the “missing piece”?

Lonchodectid lifestyle logic

Ah, Lonchodectids. One of the most obscure and little-known pterosaur clades. The clade could include Lonchodectes, Lonchodraco , "Palaeornis" cliftii, Prejanopterus, Serradraco, Unwindia, Yixianopterus, the unnamed specimen BEXHM 2015.18, and an unpublished specimen nicknamed "Chang-e". Most of these, except Yixianopterus and allegedly Chang-e, are known from pretty fragmentary remains; and of those two, the latter is unpublished … Continue reading Lonchodectid lifestyle logic

On Caupedactylus and Tupuxuara deliradamus

In 1988, Alexander Kellner and Diogenes de Almedeia Campos described a new species of pterosaur, Tupuxuara longicristatus, known from an anterior section of skull, mostly the front part of the nasoantorbital fenestra. Six years later, it was joined by T. leonardii, which is also fragmentary but distinguishable by a less extensive palatal ridge. Later, a … Continue reading On Caupedactylus and Tupuxuara deliradamus

Pterosaurs of the Kem Kem Beds

The Kem Kem Beds lie on the border of Morocco and Algeria. This formation produces fossils that date to the Cenomanian, which reveal a coastal deltaic wetland environment. It's most famous for the various large theropod dinosaurs such as Carcharodontosaurus and Spinosaurus (leading to the infamous Stromer's Riddle - why are there so many large predatory dinosaurs in … Continue reading Pterosaurs of the Kem Kem Beds