Two New Plioplatecarpine (Squamata, Mosasauridae) Genera from the Upper Cretaceous of North America, and a Global Phylogenetic Analysis of Plioplatecarpines

@inproceedings{Konishi2011TwoNP,
  title={Two New Plioplatecarpine (Squamata, Mosasauridae) Genera from the Upper Cretaceous of North America, and a Global Phylogenetic Analysis of Plioplatecarpines},
  author={Takuya Konishi and Michael Wayne Caldwell},
  year={2011}
}
ABSTRACT A new plioplatecarpine taxon, Latoplatecarpus, gen. nov., is proposed here to incorporate two species, L. willistoni, sp. nov., and L. nichollsae (comb. nov.). The new genus is currently restricted in distribution to the lower middle Campanian of North America. Phylogenetic analysis incorporating 97 morphological characters and 17 ingroup taxa indicates that (1) Ectenosaurus clidastoides is the basal-most member within the Plioplatecarpinae; (2) Platecarpus planifrons is generically… 
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.
A New Species of Plioplatecarpus (Mosasauridae, Plioplatecarpinae) from the Bearpaw Formation (Campanian, Upper Cretaceous) of Montana, U.S.A.
TLDR
The specimen, collected from Upper Cretaceous (Campanian) deposits of northeast Montana, exhibits a pristine level of preservation, yielding morphological details not typically observed.
A mosasaur fauna (Squamata: Mosasauridae) from the Campanian (Upper Cretaceous) of Hannover, northern Germany
Hornung, J.J., Reich, M. & Frerichs, U., February 2018. The mosasaur fauna (Squamata: Mosasauridae) from the Campanian (Upper Cretaceous) of Hannover, northern Germany. Alcheringa 42, 543-559. ISSN
A new species of tylosaurine mosasaur from the upper Campanian Bearpaw Formation of Saskatchewan, Canada
TLDR
The new species represents the most northern occurrence of the genus and the subfamily and extends the stratigraphical distribution of the the genus Tylosaurus in North America, occupying the northern Western Interior Seaway during the late Campanian.
Late Cretaceous mosasauroids (Reptilia, Squamata) of the Big Bend region in Texas, USA
  • G. L. Bell, K. Barnes, M. Polcyn
  • Environmental Science, Geography
    Earth and Environmental Science Transactions of the Royal Society of Edinburgh
  • 2012
ABSTRACT Upper Cretaceous marine rocks of the Big Bend Region of trans-Pecos Texas preserve a number of marine-adapted mosasauroids. At least three unnamed taxa of basal mosasauroids are represented
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.
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 Italy
Sclerotic Rings in Mosasaurs (Squamata: Mosasauridae): Structures and Taxonomic Diversity
TLDR
It is suggested that neither the ossicle count nor their arrangement played major roles in the aquatic adaptation in mosasaur eyes, and further quantitative study of extant reptilian clades containing both terrestrial and aquatic taxa is critical in order to understand possible adaptive significances of such osteological features.
A new halisaurine mosasaur (Squamata: Halisaurinae) from Japan: the first record in the western Pacific realm and the first documented insights into binocular vision in mosasaurs
A specimen of a halisaurine mosasaur is reported from Japan for the first time, closing the pre-existing biogeographical gap between the Middle East and the eastern Pacific. Phosphorosaurus
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References

SHOWING 1-10 OF 173 REFERENCES
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.
A new species of mosasaur (Squamata: Mosasauridae) from the Pierre Shale (lower Campanian) of Manitoba
Plioplatecarpus nichollsae, sp. nov., from the lower Campanian (Pembina Member, Pierre Shale Formation) is diagnosed by the following: a thickened ventral rim of the external naris, a short
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.
PLIOPLATECARPUS PRIMAEVUS (MOSASAURIDAE) FROM THE BEARPAW FORMATION (CAMPANIAN, UPPER CRETACEOUS) OF THE NORTH AMERICAN WESTERN INTERIOR SEAWAY
ABSTRACT One almost complete mosasaur skeleton and much additional material from the Upper Cretaceous Bearpaw Formation of South Central Saskatchewan permits the first adequate description and
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.
NEW SPECIMENS OF PLATECARPUS PLANIFRONS (COPE, 1874) (SQUAMATA: MOSASAURIDAE) AND A REVISED TAXONOMY OF THE GENUS
TLDR
The unexpected preservation of paired septomaxillae and the presence of a clear and well-defined vomer-pterygoid contact in UALVP 24240 are reported, allowing re-evaluation of the species composition of the genus.
A Redescription of Aigialosaurus (= Opetiosaurus) Bucchichi (Kornhuber, 1901) (Squamata: Aigialosauridae) with Comments on Mosasauroid Systematics
ABSTRACT Previous works discussing interrelationships of squamates, mosasauroids, and aigialosaurs have alternately suggested Opetiosaurus bucchichi and Aigialosaurus dalmaticus to be accurately
Redescription of the Holotype of Platecarpus tympaniticus Cope, 1869 (Mosasauridae: Plioplatecarpinae), and its Implications for the Alpha Taxonomy of the Genus
TLDR
Re-characterization of the holotype reveals the following similarities to Platecarpus ictericus: exoccipitals-basioccipital suture transversely oriented in condylar view; basal tubera not inflated and widely separated along ventral midline; cervical intervertebral joint surface strongly curved; seventh cervical vertebra lacking articulating intercentrum.
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