Acid preparation of samples of a bonebed from the Cenomanian of central Canada yielded
several thousand well‐preserved chondrichthyan teeth, in addition to numerous other …

Fossiliferous deposits of the Greenhorn Limestone (Upper Cretaceous) are found on the
Comanche National Grassland in southeastern Colorado. The lowest portion of the …

The Western Interior Seaway (WIS) was an epicontinental sea that extended north–south
through the middle of North America during the last half of the Cretaceous, linking the Tethys …

The type species of the extinct lamniform genus Cretalamna, C. appendiculata, has been
assigned a 50 Ma range (Albian—Ypresian) by a majority of previous authors. Analysis of a …

Bulk-sampling of 22 phosphatic horizons from the Upper Cretaceous of northern France and
the UK has yielded very rich selachian faunas dominated by shark taxa. These samples …

The paleobiology of the Cretaceous neoselachian shark, Squalicorax, has largely been
based on isolated teeth. We examined partial and nearly complete skeletons of three …

ABSTRACT A new mesoeucrocodylian, Pachycheilosuchus trinquei, from the Lower
Cretaceous (Albian) Glen Rose Formation, exhibits progressive caudal-to-cranial vertebral …

Some specimens of the Late Cretaceous lamniform shark, Cretoxyrhina mantelli (Agassiz),
from the Niobrara Chalk in Kansas are represented by partial skeletons. The vertebral and …

Erosion of the upper Arkadelphia Formation by the Ouachita River in Hot Spring County,
Arkansas, has revealed a diverse and abundant, late Maastrichtian chondrichthyan fauna …

Some specimens of the Late Cretaceous shark, Cretoxyrhina mantelli (Agassiz), from the
Niobrara Chalk in Kansas have been found with partial or nearly complete sets of teeth …