As you probably already know, Sinopterus is a genus of tapejarid pterosaur from the Jiufotang Formation of China. The holotype of Sinopterus dongi was first named by Wang and Zhou (2003). Since then, a bunch of other species of tapejarid from the Jiufotang Formation have been named (incl. Li et al. 2003, Lü et al. … Continue reading Cladistic ontogeny of Jiufotang tapejarids
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?
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
As you probably know, a recent paper reports complex branched filaments in two anurognathid specimens (Yang et al. 2019). While this hasn't been the first time branched pycnofibres have been reported (Czerkas and Ji 2002, Cincotta et al. 2016), this is the most credible case yet. Since then I've seen a lot of discussion regarding … Continue reading Fuzzy anurognathids!
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”?
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, "Palaeornis" cliftii, Prejanopterus, Serradraco, Unwindia, Yixianopterus, the unnamed specimen BEXHM 2015.18, and an unpublished specimen nicknamed "Chang-e".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except Yixianopterus and allegedly Chang-e, are known from pretty fragmentary remains; and of those two, the latter is unpublished … Continue reading Lonchodectid lifestyle logic
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
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