Oldest record of Machimosaurini (Thalattosuchia, Teleosauroidea): teeth and scavenging traces from the Middle Jurassic (Bajocian) of Switzerland [PDF]
Royal Society Open ScienceThe Jurassic period was a time of major diversification for Mesozoic marine reptiles, including Ichthyosauria, Plesiosauria and thalattosuchian Crocodylomorpha.
Torsten M. Scheyer +5 more
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Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in Late Cretaceous seas [PDF]
PeerJ, 2020 Observations of temporal overlap of niche occupation among Late Cretaceous marine amniotes suggest that the rise and diversification of mosasauroid squamates might have been influenced by competition with or disappearance of some plesiosaur taxa.
Daniel Madzia, Andrea Cau
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PROCEEDINGS OF THE ONLINE SCIENTIFIC SESSION dedicated to the 110th anniversary of the birth of Corresponding Member of the USSR Academy of Sciences Vladimir Nikolaevich Saks, 2021 The plesiosaur specimen NHMUK OR49202, from the Lias Group of Lyme Regis, consists of a complete skull, palate, and mandible, with eight associated cervical vertebrae, including the atlas-axis complex.
Benson, Roger, Vincent, Peggy
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Endocranial anatomy of plesiosaurians (Reptilia, Plesiosauria) from the Late Cretaceous (Turonian) of Goulmima (southern Morocco) [PDF]
Journal of Vertebrate Paleontology, 2019 Despite recent advances in noninvasive imaging, Plesiosauria remains one of the least explored clades of reptiles with respect to paleoneuroanatomy. Only partial endocasts, obtained from either latex casts or imprints left on the braincase, have been described.
Allemand, Rémi +3 more
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Determination of muscle strength and function in plesiosaur limbs: finite element structural analyses of Cryptoclidus eurymerus humerus and femur [PDF]
PeerJ, 2022 Background The Plesiosauria (Sauropterygia) are secondary marine diapsids. They are the only tetrapods to have evolved hydrofoil fore- and hindflippers. Once this specialization of locomotion had evolved, it remained essentially unchanged for 135 Ma.
Anna Krahl +3 more
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Ameghiniana, 2014 Abstract. Pliosaurus patagonicus sp. nov., from the middle Tithonian, Vaca Muerta Formation, Neuquen Province, Argentina, is described on an autapomorphic trait —i.e., the distance between the posterior functional alveolus and coronoid eminence (300 mm) equivalent to the last fourteen alveoli— and a unique combination of characters: short and robust ...
Brandoni, Zulma Nelida +1 more
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The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island [PDF]
Polar Research, 2012 Elasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian).
José P. O'Gorman
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A pliosaurid (Reptilia, Plesiosauria) from the Rosso Ammonitico Veronese Formation of Italy [PDF]
Acta Palaeontologica Polonica, 2013 Plesiosauria is a clade of medium to large bodied marine reptiles with a cosmopolitan distribution ranging from the latest Triassic to the end of the Cretaceous. In Europe, the fossil record of Plesiosauria is mainly known from the Northern latitudes, whereas it is much rarer from the Southern and Mediterranean areas.
CAU, ANDREA, FANTI, FEDERICO
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Journal of Vertebrate Paleontology, 2015 ABSTRACTWe provide a complete description of one of the oldest plesiosaurians, Stratesaurus taylori from the earliest Hettangian of the United Kingdom. At least 25 apomorphies distinguish S. taylori from the sympatric Thalassiodracon hawkinsii, to which all three specimens of S. taylori were originally referred.
B J. Benson, Roger +2 more
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AN UNEXPECTED SHORT TOOTH REPLACEMENT CYCLE PERIOD IN MARESAURUS COCCAI (PLESIOSAURIA; RHOMALEOSAURIDAE) FROM THE BAJOCIAN OF ARGENTINEAN PATAGONIA [PDF]
Rivista Italiana di Paleontologia e StratigrafiaThe Rhomaleosauridae were a clade of Jurassic plesiosaurians, characterized by triangular skulls, elongated preorbital region, marked premaxillary-maxillary constriction, and intermediate body proportions between pliosauromorphs and plesiosauromorphs ...
Gonzalo Matelo Mirco +2 more
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