Bottom-Feeding Plesiosaurs

@article{McHenry2005BottomFeedingP,
  title={Bottom-Feeding Plesiosaurs},
  author={Colin McHenry and Alex G. Cook and Stephen Wroe},
  journal={Science},
  year={2005},
  volume={310},
  pages={75 - 75}
}
Elasmosaurid plesiosaurs were an important part of Cretaceous marine reptile communities and are generally considered to have been predators of small, agile, free-swimming fish and cephalopods. Two elasmosaurid specimens from Aptian and Albian deposits in Queensland, Australia, include fossilized gut contents dominated by benthic invertebrates: bivalves, gastropods, and crustaceans. Both specimens also contained large numbers of gastroliths (stomach stones). These finds point to a wider niche… 
Mosasaur bite marks on a plesiosaur propodial from the Campanian (Late Cretaceous) of southern Sweden
Although plesiosaurs and mosasaurs co-existed for about 35 million years at the end of the Cretaceous, the fossil record documenting interactions between these two groups of marine reptiles is
Regurgitalites – a window into the trophic ecology of fossil cephalopods
Fossil oral ejecta that exclusively contain bivalved calcitic lower jaws of ammonites (=aptychi) from Late Jurassic Solnhofen-type deposits of southern Germany are described. Based on the symphysis
Varför svalde svanödlor (Reptilia, Plesiosauria) stenar?
Plesiosaurs are an extinct group of marine reptiles with a global distribution. During the Late Cretaceous they inhabited the Kristianstad Basin in northeastern Skane, which at the time was part of a
Late Cretaceous reptilian biota of the La Colonia Formation, central Patagonia, Argentina: Occurrences, preservation and paleoenvironments
Abstract Cropping out on the southeastern margin of the Somun Cura Plateau, the La Colonia Formation (Campanian–Maastrichtian) has yielded, over the last several decades, a varied fossil tetrapod
THE OCCURRENCE OF ELASMOSAURIDS (REPTILIA: PLESIOSAURIA) IN THE NIOBRARA CHALK OF WESTERN KANSAS
The Niobrara Chalk, including the Fort Hays Limestone and Smoky Hill Chalk, was deposited during a period of high sea levels (Coniacian – Lower Campanian). Although the Fort Hays Limestone is
A NEW OXFORDIAN PLIOSAURID (PLESIOSAURIA, PLIOSAURIDAE) IN THE CARIBBEAN SEAWAY
TLDR
A phylogenetic analysis suggests that Gallardosaurus forms a clade with Peloneustes, the most common pliosaurid genus occurring in the Oxford Clay, and that it would have played the role of an active predator taking advantage of nectonic fish recorded in the area.
Exceptionally prolonged tooth formation in elasmosaurid plesiosaurians
TLDR
The first plesiosaurian tooth formation rates as a mechanism for servicing the functional dentition are reported, infering a remarkably protracted tooth formation cycle of about 2–3 years–other polyphyodont amniotes normally take ~1–2 years to form their teeth.
6.09 – High-Trophic-Level Consumers: Trophic Relationships of Reptiles and Amphibians of Coastal and Estuarine Ecosystems
This chapter briefly considers the trophic relationships of Mesozoic coastal reptiles (ichthyosaurs, plesiosaurs, mosasaurs, pterosaurs, and placodonts). The few amphibian species that exploit
Elasmosaur (Reptilia: Sauropterygia) neck flexibility: implications for feeding strategies.
TLDR
Two-dimensional models based on a complete specimen of the Late Cretaceous elasmosaur Aphrosaurus furlongi suggest that maintenance of a straight neck while swimming, together with considerable lateral and/or ventral movement during prey capture and feeding are feasible.
Gastroliths associated with an Aristonectes specimen (Plesiosauria, Elasmosauridae), López de Bertodano Formation (upper Maastrichtian) Seymour Island (Is. Marambio), Antarctic Peninsula
Abstract The occurrence of a large gastrolith set associated with a specimen referred to Aristonectes sp. is reported here for the first time. The specimen MLP 89-III-3-1 comes from Seymour Island (
...
1
2
3
4
5
...

References

SHOWING 1-9 OF 9 REFERENCES
Tooth morphology and prey preference of Mesozoic marine reptiles
TLDR
The guilds present in six well-preserved faunas of the Jurassic and Cretaceous illustrate the structure of and changes in the large marine predator adaptive zone.
Early Triassic coprolites from Australia and their palaeobiological significance.
:  Coprolites from the Arcadia Formation, Queensland, Australia, were studied in conjunction with the vertebrate fossil assemblages from two localities to maximize our understanding of the
An Elasmosaur with Stomach Contents and Gastroliths from the Pierre Shale (Late Cretaceous) of Kansas
Abstract A nearly complete skeleton of an elasmosaurid plesiosaur (NJSM 15435) from the Sharon Springs Member (Middle Campanian) of the Pierre Shale, Logan County, Kansas, is associated intimately
Ontogenetic evolution of bone structurein Late Cretaceous Plesiosauria from New Zealand
TLDR
It suggests that juvenile plesiosaurs kept a conservative (plesiomorphic) ecology for sauropterygians, as poorly mobile, lagoon or shore dwellers while, in contrast, the adults would shift towards much more active locomotory behaviors in the open sea.
Effects of stomach stones on the buoyancy and equilibrium of a floating crocodilian: a computational analysis
A three-dimensional mathematical/computational model of the crocodilian Alligator mississippiensis has been developed to investigate the influence of gastroliths on crocodilian buoyancy. The model ...
STOMACH STONES AND FOOD OF PLESIOSAURS.
THE STOMACH STONES OF THE PLESIOSAURS.