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New issue of Cretaceous Research
From: Ben Creisler firstname.lastname@example.org
New Cretaceous Research articles
The April 2002 (just available online) issue of Cretaceous
Research contains a couple of articles related to
Rauhut, Oliver W. M. 2002. Dinosaur teeth from the
Barremian of Uña, Province of Cuenca, Spain. Cretaceous
Research 23: 255-263.
The dinosaur fauna from the Barremian locality of Uña,
east-central Spain, is described on the basis of isolated
teeth. Apart from an unidentified sauropod and a probably
new basal euornithopod, the fauna is noteworthy for its
high diversity of theropods. The latter clade is
represented by teeth of velociraptorine and dromaeosaurine
dromaeosaurids, as well as Richardoestesia-like and
Paronychodon-like teeth, making the theropod tooth fauna
from Europe strikingly similar to the Late Cretaceous
faunas from North America. However, the reported presence
of more basal theropods from other Early Cretaceous
localities in Europe indicate that this was a transitional
fauna between the typical Late Jurassic and the typical
Late Cretaceous theropod faunas of the Northern
[Suggests that teeth very similar to Richardoestesia
isosceles found in Spain and elsewhere and over a range of
time periods (Upper Jurassic to Late Cretaceous) indicate
that species should be considered a nomen dubium.
Richardoestesia-like teeth may possibly be juvenile teeth
of some better-known group of theropods.]
The genus Patricosaurus has been considered a dinosaur in
Barrett, Paul M.& Susan E. Evans. 2002. A reassessment of
the Early Cretaceous reptile `Patricosaurus merocratus'
Seeley from the Cambridge Greensand, Cambridgeshire, UK.
Cretaceous Research 23: 231-240.
The Cambridge Greensand has yielded a diverse fauna of
terrestrial and marine vertebrates, including various
fish, birds, dinosaurs and marine reptiles. However, this
important late Early Cretaceous biome has been severely
neglected and the taxonomy and systematics of most of
these animals are in need of urgent revision. The small
reptile `Patricosaurus merocratus' was named on the basis
of a partial femur and sacral vertebra and referred to the
Squamata. Re-examination of the type material indicates
that `Patricosaurus' represents a chimera composed of
indeterminate lepidosaurian and archosaurian elements and
that it should be regarded as a nomen dubium.
Nevertheless, the syntype femur represents the only
material of a terrestrial lepidosaur to be recovered from
the Cambridge Greensand. Moreover, this element is
currently the largest known terrestrial lepidosaur, living
or extinct, to have been recovered from the British Isles.