Manuel Alfredo Araújo Medeiros
Departamento de Biologia, Campus Bacanga, Universidade Federal do Maranhão, São Luís (MA), Brazil
Elias F. A., Bertini R. J. and Medeiros M. A. A., 2007, Pterosaur teeth from
the Laje do Coringa, middle Cretaceous, São Luís-Grajaú basin, Maranhão
state, Northern-Northeastern Brazil. Revista Brasileira de Geociências.
37(4): 668-676
Abstract
This contribution presents the partial results of an
investigation plan of a reptile teeth set, collected
from one of the richest and most diversified fossil deposits from the middle
Cretaceous from the State
of Maranhão, Brazil: the Laje do Coringa. Situated in the Cajual Island,
Alcântara Municipality, it consists of
bone-bed with an expressive fossil record, late Albian/early Cenomanian in
age, belonging to the Alcântara
Formation, São Luís-Grajaú Basin. Analysis of morphologic parameters of
teeth crown suggests an association
of at least four morphotypes to Ornithocheiroidea pterosaurs. Based on this
interpretation, this group, which
has a diversified record in the middle Cretaceous deposits from the Santana
Formation, Araripe Basin, has now
its first occurrence demonstrated in the São Luís-Grajaú Basin.