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Jianchangnathus (Jurassic pterosaur) skull + Italian mosasaurines + hadrosauroid eggs from Catalonia



From: Ben Creisler
bcreisler@gmail.com

In the new issue of Journal of Vertebrate Paleontology:


Chang-Fu Zhou (2014)
Cranial morphology of a Scaphognathus-like pterosaur, Jianchangnathus
robustus, based on a new fossil from the Tiaojishan Formation of
western Liaoning, China.
Journal of Vertebrate Paleontology 34(3): 597-605
DOI:10.1080/02724634.2013.812100
http://www.tandfonline.com/doi/full/10.1080/02724634.2013.812100#.U2lYQPldXeI

A new pterosaur fossil with an articulated skull and fragmentary
postcranial skeleton was collected from the Jurassic Tiaojishan
Formation of Linglongta, western Liaoning, China. Its configuration
shows an affinity with the Scaphognathus-like Jianchangnathus
robustus, which was reported from the same region and horizon. The
fossil reveals new cranial morphology: a convex dorsal margin of the
skull, antorbital fenestra completely posterior to the naris, a long
maxillary process and short quadratojugal process of the jugal, and
jaw articulation above the midheight of the mandible; the first upper
tooth close to the snout tip, the two anterior-most upper teeth
tightly arranged, and the fifth upper tooth positioned at the level of
the anterior margin of the naris. Recent discoveries of
non-pterodactyloids from the Tiaojishan Formation of northeastern
China exhibit a high taxonomic diversity comparable to those in the
Solnhofen Limestone. Therefore, as a significant pterosaur assemblage
before the Solnhofen Limestone, the Tiaojishan Formation provides a
new perspective in understanding the evolution and diversity of the
non-pterodactyloids.

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Alessandro Palci, Michael W. Caldwell, Cesare A. Papazzoni & Eliana
Fornaciari (2014)
Mosasaurine mosasaurs (Squamata, Mosasauridae) from northern Italy.
Journal of Vertebrate Paleontology 34(3): 549-559
DOI:10.1080/02724634.2013.826235
http://www.tandfonline.com/doi/full/10.1080/02724634.2013.826235#.U2leB_ldXeI


A review of the remains of mosasaurine mosasaurs from the upper
Campanian–Maastrichtian of Italy is provided. The first discoveries of
mosasaur material from Italy are represented by a series of isolated
teeth from the Scaglia Rossa Formation north of Vittorio Veneto (late
Campanian). These teeth show some similarities to Prognathodon,
Liodon, and Eremiasaurus, but are not identical and probably represent
a new taxon. A partial mosasaur skull found south of Reggio Emilia in
1886 is potentially a new species of Mosasaurus, although more
material is needed to support this possibility. This specimen is
temporarily referred to M. cf. hoffmanni. A second fragmentary
mosasaur skull was accidentally discovered in 1892 north of Verona
during the demolition of a school (inside one of the building stones).
Based on its general morphology, size, and dentition, this second
specimen can be considered as very closely related to M. hoffmanni,
but its older age (early–middle Maastrichtian) suggests that it likely
represents a new species of Mosasaurus. We refrain from erecting new
taxonomic names for these specimens pending the discovery of new, more
complete material upon which satisfactory diagnoses can be based. The
paleobiogeographic distribution of Mosasaurus hoffmanni, M. cf.
hoffmanni, M. beaugei, Liodon, and Prognathodon is reviewed briefly.

==

Albert G. Sellés, Bernat Via & Àngel Galobart (2014)
Spheroolithus europaeus, oosp. nov. (late Maastrichtian, Catalonia),
the youngest oological record of hadrosauroids in Eurasia.
Journal of Vertebrate Paleontology 34(3):725-729
DOI:10.1080/02724634.2013.819360
http://www.tandfonline.com/doi/full/10.1080/02724634.2013.819360#.U2ldw_ldXeI

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