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New remains of Delapparentia from the Lower Barremian of Spain

Just published:

Gasca, J.M., J.I. Canudo, J.I. & M. Moreno-Azanza. 2014. On the
Iberian iguanodont dinosaur diversity: new fossils from the lower
Barremian, Teruel province, Spain. Cretaceous Research, 50, 264-272.


Abstract: New fossils from the lower Barremian (Lower Cretaceous) of
Spain increase the known occurrence of iguanodont dinosaurs (i.e.
members of the clade Iguanodontia) in the Iberian Peninsula. A partial
dentary and ischium from the fossil locality of La Cantalera 2 (Blesa
Formation, municipality of Josa, Teruel province) testify to the
presence of a new specimen in the early Barremian of Iberia, closely
related to Delapparentia turolensis, which was previously only known
in the type locality (La Maca-3, Camarillas Formation, municipality of
Galve, Teruel province). These new fossils are assigned to
Delapparentia turolensis (ischium) and cf. Delapparentia sp.
(dentary). Moreover, the description and comparison of some of the
characters of the ischium reveal that this bone is of previously
unnoticed relevance for iguanodont systematics. The differences in
overlapping postcranial material – observed by comparing ischial
material from the provinces of Teruel and Burgos – lead us to conclude
that late Hauterivian-early Barremian iguanodont diversity in Iberia
consists of at least two different taxa: Delapparentia turolensis and
another form closely related to Iguanodon. Additionally, dental
morphotypes from La Cantalera bonebed evince the presence of at least
three different iguanodonts in the lower Barremian of Iberia.

Keywords: Blesa Formation; Ornithopoda; Styracosterna; Delapparentia;
Ischium; Early Cretaceous