New Exceptional Specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the Upper Campanian of Alberta, Canada, and the Systematics and Ecology of the Genus

@inproceedings{Konishi2011NewES,
  title={New Exceptional Specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the Upper Campanian of Alberta, Canada, and the Systematics and Ecology of the Genus},
  author={Takuya Konishi and Donald B. Brinkman and Judy A. Massare and Michael Wayne Caldwell},
  year={2011}
}
ABSTRACT Currently known from the early Campanian to late Maastrichtian, Prognathodon constitutes a group of mosasaurine mosasaurs that typically possessed massive jaws. Only four articulated skulls are known to date and the information concerning their postcrania remains minimal. Moreover, the early to middle Campanian specimens of the taxon are extremely rare and fragmentary. Two new specimens of Prognathodon overtoni from the early late Campanian (ca. 74.5 Ma) Bearpaw Formation exposed near… Expand
A Small, Exquisitely Preserved Specimen of Mosasaurus missouriensis (Squamata, Mosasauridae) from the Upper Campanian of the Bearpaw Formation, Western Canada, and the First Stomach Contents for the Genus
TLDR
A new, exquisitely preserved specimen of a small mosasaur, referable to Mosasaurus missouriensis, is reported from the Bearpaw Formation of southern Alberta, Canada, and it is hypothesized that coexistence of these apex predators in theBearpaw Sea was possible because of niche partitioning. Expand
A giant mosasaur (Reptilia, Squamata) with an unusually twisted dentition from the Argille Scagliose Complex (late Campanian) of Northern Italy
Abstract A snout of a large-sized mosasaur from the Upper Cretaceous pelagic-turbiditic deposits of the Argille Scagliose Complex of Northern Italy is described. Nannofossil assemblages from theExpand
A new species of tylosaurine mosasaur from the upper Campanian Bearpaw Formation of Saskatchewan, Canada
Mosasaurs assigned to the genus Tylosaurus have been reported from the North Atlantic Circle Basin, including the Western Interior Seaway in North America and Europe, from the Turonian of Chihuahua,Expand
The northernmost occurrence of Prognathodon (Squamata: Mosasauridae) from the Western Interior Seaway of North America
The marine reptile Prognathodon (Squamata: Mosasauridae), a mosasaurine mosasaur exhibiting a characteristically robust skull and dentition, lived during the last two ages of the Late Cretaceous.Expand
Tylosaurine mosasaurs (Squamata) from the Late Cretaceous of northern Germany
Abstract Two genera of tylosaurine mosasaurs, Tylosaurus and Hainosaurus, are recorded for the first time from Germany. Tylosaurus sp. is represented by two isolated tooth crowns, originallyExpand
A Large Mosasaurine (Squamata: Mosasauridae) from the Latest Cretaceous of Osaka Prefecture (Sw Japan)
Abstract. A jaw fragment of a large mosasaurine (Squamata, Mosasauridae) was discovered from the uppermost Cretaceous Izumi Group in Sennan City, Osaka Prefecture, Southwest Japan as aExpand
A New Genus and Subfamily of Mosasaurs from the Upper Cretaceous of Northern Italy
ABSTRACT A new genus and two new species of mosasaurs are described from five specimens collected during quarrying operations in the ‘Lastame’ lithotype located in the mountains of northern ItalyExpand
Rediagnosis and redescription of Mosasaurus hoffmannii (Squamata: Mosasauridae) and an assessment of species assigned to the genus Mosasaurus
TLDR
It is shown that M. hoffmannii is distinguished from other species assignable to the genus by the anteroventral corner formed on the tympanic rim of the quadrate, the asymmetric carinae of the anterior marginal teeth dividing the tooth circumference into short labial and long lingual segments, and the proximal and distal expansion of the femur. Expand
A new species of longirostrine plioplatecarpine mosasaur (Squamata: Mosasauridae) from the Late Cretaceous of Morocco, with a re-evaluation of the problematic taxon ‘Platecarpus’ ptychodon
TLDR
A new mosasaur from Morocco described, Gavialimimus almaghribensis, is characterized by a highly elongate snout, highly retracted nares and large supratemporal fenestrae, among other features, and provides new insight into several aspects of mosasaurus evolution and comparative anatomy. Expand
A New Lizardfish (Teleostei, Aulopiformes) from the Late Cretaceous Bearpaw Formation of Alberta, Canada, with a Revised Diagnosis of Apateodus (Aulopiformes, Ichthyotringoidei)
TLDR
This report shows promise for additional fish material preserved in mosasaur skeletons because they are relatively more commonly preserved than fish skeletons, and emends the diagnosis for Apateodus to include more cranial characteristics. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 76 REFERENCES
A NEW SPECIES OF GIGANTIC MOSASAUR FROM THE LATE CRETACEOUS OF ISRAEL
TLDR
The present specimen extends the size range of known globidensine mosasaurines by around a factor two, and is one of the largest skulls ever discovered. Expand
New Data on Cranial Measurements and Body Length of the Mosasaur, Tylosaurus nepaeolicus (Squamata; Mosasauridae), from the Niobrara Formation of Western Kansas
TLDR
Tylosaurus nepaeolicus is one of the least well known of the five species of mosasaurs that are recognized from the lower Smoky Hill Chalk Member (upper Coniacian) of the Niobrara Formation in western Kansas but the two species are closer in size than previously reported. Expand
A NEW BASAL MOSASAUROID FROM THE CENOMANIAN (U. CRETACEOUS) OF SLOVENIA WITH A REVIEW OF MOSASAUROID PHYLOGENY AND EVOLUTION
TLDR
Arguments supporting the importance of pelvic evolution to the aquatic adaptations of mosasaurs are given along with a discussion of recent hypotheses of limb evolution in mosasauroids. Expand
A new species of Prognathodon (Squamata, Mosasauridae) from the Maastrichtian of Angola, and the affinities of the mosasaur genus Liodon
TLDR
The tooth morphology in the new taxon is reminiscent of some species of the genus Liod on, allowing association of Liodon-like dentition with otherwise Prognathodon-like crania, and thus resolves the long-standing question of the phylogenetic affinities of Loddon. Expand
Dallasaurus turneri, a new primitive mosasauroid from the Middle Turonian of Texas and comments on the phylogeny of Mosasauridae (Squamata)
TLDR
A new genus and species of primitive-limbed mosasauroid, Dallasaurus turneri, from the Middle Turonian of north-central Texas, is described on the basis of two incomplete skeletons and retains plesiomorphic characters but also exhibits certain characters shared with derived mosasaurs of the subfamily Mosasaurinae. Expand
New Material of the Mosasaur Plioplatecarpus nichollsae Cuthbertson et al., 2007, Clarifies Problematic Features of the Holotype Specimen
TLDR
Re-characterization of the species indicates its closest anatomical resemblance to descriptions given for the contemporary Platecarpus somenensis specimens (lower middle Campanian) from North America, which indicates that the current generic assignment for the latter taxon needs to be re-evaluated. Expand
Anatomy and functional morphology of the largest marine reptile known, Mosasaurus hoffmanni (Mosasauridae, Reptilia) from the Upper Cretaceous, Upper Maastrichtian of The Netherlands
TLDR
The skull is robustly constructed and is the least kinetic in the Mosasauridae and, with a tightly assembled palatal complex, provided greater cranial stability in this large-headed mosasaur. Expand
Description and phylogenetic relationships of Taniwhasaurus antarcticus (Mosasauridae, Tylosaurinae) from the upper Campanian (Cretaceous) of Antarctica
TLDR
Phylogenetic analysis indicates that T. antarcticus and T. oweni are sister taxa, confirming their assignment to the same generic entity, and the reexamination of this specimen reveals that it is clearly distinguishable by a set of skull features from other species of the genus. Expand
New Data on the Postcranial Anatomy of the California Mosasaur Plotosaurus bennisoni (Camp, 1942) (Upper Cretaceous: Maastrichtian), and the Taxonomic Status of P. tuckeri (Camp, 1942)
Abstract New axial and appendicular material permits a detailed re-description of the postcranial skeleton of the derived mid-Maastrichtian California mosasaur genus Plotosaurus. Centrum morphology,Expand
Dental and vertebral morphology of the enigmatic mosasaur Dollosaurus (Reptilia, Mosasauridae) from the lower Campanian (Upper Cretaceous) of southern Sweden
Teeth, jawbone fragments and vertebrae of an unusual mosasaurine mosasaur, Dollosaurns, have been collected from marine strata of latest early Campanian age in the Kristianstad Basin, southernExpand
...
1
2
3
4
5
...