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New publications



Clarke, J. A. & Norell, M. 2004. New Avialan Remains and a Review of the Known Avifauna from the Late
Cretaceous Nemegt Formation of Mongolia. American Museum Notitates 3447:1-12.


ABSTRACT: Small vertebrates have remained relatively poorly known from the Nemegt Formation, although
it has produced abundant and well-preserved large dinosaur remains. Here we report
three new avialan specimens from the Late Cretaceous (Maastrichtian) of Omnogov Aimag,
Mongolia. These fossils were collected from the Nemegt Formation exposed at the locality of
Tsaagan Khushu in the southern Gobi Desert. All of the new finds are partial isolated bones
with a limited number of preserved morphologies; however, they further understanding of
dinosaur diversity in the Late Cretaceous of Mongolia and, specifically, from the Nemegt
Formation. The new specimens are described and evaluated in phylogenetic analyses. These
analyses indicate that all three fossils are placed as part of the clade Ornithurae.
Avialan diversity of the Nemegt Formation is reviewed and briefly compared with that of
the underlying Djadokhta and Barun Goyot Formations. These formations have been considered
to represent at least two distinct Late Cretaceous environments, with the Nemegt typically
interpreted as representing more humid conditions. Ornithurine and enantiornithine birds are
known from the Nemegt as well as the Djadokhta and Barun Goyot Formations, although
ornithurine remains are more common in the Nemegt. No avialan species known from the
Djadokhta, or Barun Goyot, are also known from the Nemegt Formation and, overall, the
avialan taxa from these formations do not appear more closely related to each other than to
other avialans. Whether these faunal differences are best interpreted as environmental, temporal,
or sampling/preservational should be further investigated.


Available at: http://diglib1.amnh.org/novitates/i0003-0082-3447-01-0001.pdf



The Abstract book of the 2nd WEAVP is now available at: http://eavp.alettra.de/abstracts/2ndWEAVPabstracts.pdf

It contains several interesting things, among other things that the hungarian pterosaur mentioned in a recent thread is Azdarcho aff lancicollis: "Attila Ösi: New azhdarchid pterosaur remains from the Late Cretaceous of Hungary"

Also:

Dinosaurs from the Early Cretaceous Ilek Formation in West Siberia, Russia

New sauropod remains from the Villar del Arzobispo Formation (Upper Jurassic-
Lower Cretaceous transition) of Galve (Teruel, Spain)

First dinosaur from the Shan-Thai Block of South-East Asia : a Jurassic
sauropod from the southern peninsula of Thailand

Maastrichtian sauropods of the Hateg Basin, Romania

Marine reptiles from the Middle Jurassic of Northwestern Switzerland

A brick in a wall: the first nyctosaurid pterosaur from the Coniacian of NE
Mexico and its impact on the pterosaurian wing anatomy

Telmatosaurus hatchlings and embryos from Tustea (Hateg Basin, Romania)

Therizinosauroid Affinities Within Maniraptoriform Theropods Based On
Embryonic Data

The first dinosaur footprints from the Middle Jurassic (Bathonian ? Callovian) of
the Middle Atlas mountains (Morocco)


A plant-eating crocodyliform from the Late Cretaceous of Hungary

Feeding the Mechanical Mosasaur: what did Carinodens eat?

The inflated sauropod ? distribution and development of pneumatic structures in
the cervical vertebrae of Diplodocus (Sauropodomorpha)

Upper Jurassic (Kimmeridgian and Tithonian) marine reptiles in the collections
of the Universidad Autónoma de Nuevo León, Facultad de Ciencias de la Tierra,
Linares, Mexico

A big theropod from the Jurassic-Cretaceous boundary (Tithonian-Berriasian,
Villar del Arzobispo Formation) of Galve sub-basin (Teruel, Spain)

Two new ornithopod dinosaurs from the Lower Cretaceous (lower Barremian,
Camarillas Formation) of Galve (Teruel, Spain)





Tommy Tyrberg