Plesiosaurus dolichodeirus

Species

Plesiosaurus dolichodeirus

Author

Conybeare,1824

Classification

• Sauropterygia
  • Eosauropterygia
    • Eusauropterygia
      • Pistosauroidea
        • Pistosauria
          • Plesiosauria
            • Plesiosauroidea
              • Plesiosauridae

Age

Early Jurassic, Sinemurian

Type location

Lyme Regis, Dorset, UK

Geological formation

Black Ven Marl Formation, Lower Lias

Type specimen

NHMUK PV OR 22656

Referred material

BMNH 28332,33287 (Owen, 1865:Plate4,Figures1and 2), 36183(Owen, 1865:Plates1and2), 39490(Owen, 1865:Plate3, Figures1and 3), 39491 (Owen, 1865:Plate3, Figure 2), 41101 (Andrews, 1896:Figure1), R.255 (acompletejaw purchasedfrom theEdgertoncollectionin 1882),R.1313(collected by Mary Anning, 1829; Buckland'sGeology and Mineralogy, "The Bridgewater Treatise," 1837:Plate 16, Figure 2), R.1314 (a well-preservedright forelimb), ?R.1315,R. 1316(Owen, 1865:Plate3, Figures4 and6), R. 1316b(Owen, 1865:Plate 4, Figures 3 and 8), ?R.1330,R.1756 (a partial skeletonwith good right limbs; Lydekker, 1890:277), ?BRSMG Ce17972 (the smallest potential Plesiosaurus skeletonknown; Storrs, in press),JMM FC M 032, NMHN A.-C. 8592, NMING F:8758, OXFUM J.10304,J.13809,J.28586(typical dentariesfrom the Philpott collection,measuredby Owen, 1840a:61),J.28587,TM 13286(Winkler, 1873:Plate 7), YPM 1654 (an isolatedpair of dentarieswith well-preservedteeth), YPM-PU 3 3 5 2 ( a j u v e n i l e s p e c i m e n ) , a n d n u m e r o u si s o l a t e d , b u t f r e q u e n t l y n o n d i a g n o s t i c , bonesassignedto P. dolichodeirusarecontainedin virtually all collectionsof Lias material.