Cryptocleidus eurymerus     PHILLIPS 1871   

Genus


Diagnosis    BROWN 1981b


Members of the genus Cryptoclidus in which the teeth have a characteristic ornament of longitudinal ridges: two opposing axial ridges (mesial and distal) rise from the base of the crown and almost meet at the tip,and between them rise 4 to 7 lingual ridges which extend from the base to approximately one-third of the height of the crown; there are no bucal ridges. The humerus is greatly expanded distally by an anterior expansion of the portion bearing the radial facet. The radius is enlarged by anterior expansion of the portion bearing the humeral facet, which may be up to twice as long as the facet for the radiale, so causing the anterior margin to describe a sigmoid curve. The ulna is much wider than long.

Specimens


British Geological Survey Collection
BGS 4646left humerus
Museum of Le Havre - coll. Le Brun
MLH(RB) 1005 Left humerus.
National Museum of Wales
NMW J19.96.G5Left and right humeri; left and right femora
NMW J21.44.G1left and right femora; left humerus
NMW Jno#Left humerus
New Walk Museum, Leicester
LEICT G.418.1956/8.e.1&2left Femur
LEICT G2.1998.1left Humerus
LEICT G2.1998.13right Humerus
LEICT G2.1998.14left Humerus
LEICT G2.1998.15right Femur
LEICT G2.1998.17right humerus
LEICT G2.1998.21right Femur
LEICT G2.1998.4Right femur?
LEICT G2.1998.6right humerus or femur
LEICT G2.1998.9right Femur
LEICT G418.1956./8.d.1-18/right Femur
LEICT G418.1956.39right Femur
LEICT G418.1956.42left Femur
LEICT G418.1956.46left Humerus
LEICT G418.1956.57left Femur
LEICT G418.1956.65Left humerus
LEICT G418.1956.66right Humerus
LEICT G418.1956.75right Femur
LEICT G418.1956.8Left and right femur
LEICT G418.1956.86right Humerus
Peterborough Museum and Art Gallery
PET R.102right Femur
PET R.104right Humerus
PET R.246left and right femora, right humerus
PET R.26left humerus
PET R.283.412An almost complete skull and associated skeleton.
PET R.45left Humerus
PET R.50left Humerus
PET R.61femur
PET R.92right Femur
PET R100femur
PET R12femur
PET R277Left humerus
PET R287Left humerus
PET R311left and right femora
Scunthorpe Museum
SCM P.2889disarticulated skull bone, several detached teeth, most of the neck including at least 26 of the 32 centra, less than half the dorsal and sacral vertebrae; 8 caudal vertebrae, an incomplete pectoral girdle, the left femur, numerous ribs, gastralia and phalanges
Sedgwick Museum, Cambridge
SMC C10Right humerus
SMC C11Left humerus
SMC C12Right humerus
SMC C13Left humerus
SMC C6Right humerus
SMC C7Right femur
SMC C8Right femur
SMC C9Right femur
SMC J65396Right humerus
SMC J65397Left humerus
SMC J65495Left femur
SMC J65496Right humerus
SMC J65505Right femur
SMC J65866Left humerus
SMC J65870aRight humerus
SMC J65901Left humerus
SMC J66297Right femur
SMC J66334Right femur
SMC J66410Left humerus
SMC J66418Right femur
SMC J66620Left femur
SMC J66786Right humerus
SMC J66787Right femur
SMC J67072Right humerus
SMC J67074Left humerus
SMC J67092Right femur
SMC J67336Right femur
SMC J67337Left femur
SMC J68335Right femur
SMC J68352Left humerus
SMC noneRight humerus
SMC uncataloguedforelimb, misidentified by Phillips (1871) as a hind limb
SMC X1Left femur
SMC X39340Left femur
The Hunterian Museum, Glasgow
HMG V1091Postcranial skelton of old 'adult'; lacking a tail (mounted with the tail of V.1104) Figured by Smellie (1915) as the holotype of Apractolcleides teretipes ;pectoral girdle (Davdson 1997)
HMG V1104Postcranial skelton of an old 'adult (Brown 1981); pectoral girdle (Davidson 1997)
HMG V1104pectoral girdle of juvenile
HMG V1614pectoral girdle
HMG V1705Right femur
HMG V1708right and left femora
HMG V1717right femur
HMG V1737Left humerus
HMG V1753left and right femora; left and right humeri
HMG V1793Right humerus
HMG V1799pectoral girdle
HMG V1806Left femur
HMG V1807Coracoids, scapulae and humerus of an 'old adult' (Brown 1981)
HMG V1809Right humerus of 'old adult' (Brown 1981)
HMG V1809Right forelimb of 'old adult' (Brown 1981)
HMG V1810right femur, left humerus
HMG V1813pectoral girdle
HMG V1817right femur
HMG V1818right femur
HMG V1819right femur
HMG V1820right femur
HMG V1822right femur
HMG V1823Left femur
HMG V1825Left femur
HMG V1826Left femur
HMG V1827Right humerus
HMG V1828Left humerus
HMG V1829Right femur
HMG V1830Right humerus
HMG V1834Right femur
HMG V1835Right humerus of an old adult.
HMG V1838Left femur
HMG V1839Right femur
HMG V1840Left humerus
The Natural History Museum, London
BMNH R 10134adult paddles, front and rear limbs
BMNH R 241218 cervical vertebrae, with fused arches and ribs, 2 pectorals, a dorsal, 2 sacral and 22 caudal vertebrae, ribs, abdominal ribs, shoulder-girdle somewhat imperfect, especially posteriorly with only portions of the clavicles preserved, right fore paddle. incomplete 'adult' postcranial skeleton, partly fugured by Seeley (1892) as the holotype of Muraeonsaurus (Crytoclidus) platymerus, and by Andrews (1910) as C.oxoniensis (Brown 1981); adult paddles, front and rear limbs (Caldwell1997), pectoral girdle (Davidson 1997)
BMNH R 2416Centra of 27 cervical vertebrae, 2 pectorals, 14 dorsals, and 3 caudals, a few of the neural arches and cervical ribs, in all cases free from the centra, the scapulae and coracoids, with the clavicle restored, humeri, radii, ulnae, pubes, ischia, and left. incomplete 'juvenile' postcranial skeleton, partly figured by Andrews (1895) as C.oxoniensis
BMNH R 2417'Juvenile' skeleton (mounted) figured by Andrews (1895) as C.oxoniensis (Brown 1981); juvenile paddles, front and rear limbs (Caldwell 1997); Skull, the occipital portion and the vassis cranii, mandible, which carried 20-22 teeth on each side, atlas, and axis, 30-31 cervical, 2-3 pectoral, 21-22 dorsals, 3-4 sacrals, and about 21 caudals, neural arches, cervical, dorsal, and caudal ribs, ventra
BMNH R 24182 cervical vertebrae, 2 pectorals, 18 dorsals, 11 sacrals, and anterior caudals, some portions of dorsal and caudal ribs, the left ilium.
BMNH R 24203 anterior dorsal vertebrae, 2 middle caudal centra, left humerus, left femur, some odd paddle-bones and portions of ribs.
BMNH R 2431Parietals, centra of 35 dorsal and caudal vertebrae with a few detached arches, coracoids, right scapula, some bones of the fore paddles, ilium, ischium, portions, of pubes, femur of a very young individual
BMNH R 2465Left scpaula of a half-grown individual.
BMNH R 2616Incomplete 'adult' postcranial skeleton partly figured by Andrews (1895) as C.oxoniensis. (Brown 1981) pectoral girdle (Davidson 1997).Some cervical vertebrae, mostly with the neural arches, with three just becoming fused to the centra, 1 sacral and 8 caudal vertebrae, the neural arches im most cases missing, nearly prefect shoulder-girdle and pelvis and a few odd paddle-bones.
BMNH R 2860adult paddles, front and rear limbs (CALDWELL 1997), pectoral girdle (Davidson 1997). One of the most complete 'adult' plesiosaur skeletons known (Brown 1981). Skull is broken and incomplete, basioccipital, exoccipital, opisthotic, supraoccipital, basisphenoid, parietals, frontals, quadrate and squamosal, premaxillae, portions of pterygoids, the mandible is nearly complete, atlas, axis, 30 cervicals, 2 or 3 pectorals
BMNH R 2862Basioccipital, part of the basisphenoid, atlas, axis, 28 cervical, 23 pectorals, and dorsals, and 30 sacrals, and caudals, scapulae, coracoids, clavicles, fore paddles wanting only a carpal and some distal phalanges, portions, of ilia, ischia and pubes, h Postcranial skeleton of an old adult (Brown 1981); gastralia figured by Andrews (1910) as C.oxoniensis; adult paddles, front and rear limbs (Caldwell 1997d), pectoral girdle (Davidson 1997)
BMNH R 3538A nearly complete and very slightly crushed shoulder-girdle of an adult. Pectoral girdle of 'adult' (Brown 1981); figured by Andrews (1910) as C.oxoniensis
BMNH R 3703Nearly complete left hind paddle of an adult. Incomplete 'adult' postcranial skeleton. Hindlimb figured by Andrews (1910) as C.oxoniensis; adult paddles, rear limbs only (Caldwell 1997)
BMNH R 370514 posterior caudal vertebrae of an adult individual.
BMNH R 3730Incomplete 'adult' skeleton. Jaws figured by Andrews (1910) as C. oxoniensis; adult paddles, front and rear limbs (Caldwell 1997) Imperfect skull, atlas, axis and 15 cervical vertebrae, the centra of the posterior caudal vertebrae still united with 1 another, 6 ribs, left clavicle, radius, ulna, and the greater part of 1 forepaddle, together with a number of odd bones of the other,
BMNH R 8575adult paddles, front and rear limbs
BMNH R 8621Lower jaw, 2 teeth and postcranial skeleton.
BMNH R 8622pectoral girdle of juvenile
BMNH R R10135Right humerus, left and right femora
BMNH R R2413left and right femora; left humerus
BMNH R R6702Right femur
University of Glasgow
UG 1105right femur, left humerus
UG 1127Left femur
UG V1090Right humerus
University of Liverpool
LIVUNI 4532parts of the skeleton of an individual of medium size. Bassioccipital, two squamosals, prootic, posterior portions of mandibular rami; 65 vertebral centra comprising 29 cervicals, 2 pectorals, 20 dorsals, 14 caudals together with several neural arches and dorsal ribs; right scapula and both coracoids; imperfect pubes and single partial ischium, both ilia; femur and some paddle bones
LIVUNI 4533Imperfect scapula of adult individual
LIVUNI 4534Portions of the skeleton of a smaller individual; 42 vertebral centra (10 cervical, 1 pectoral, 21 dorsal, 10 caudal); several neural arches; a number of dorsal and ventral ribs; both forelimbs together with portions of paddles; one ischium; one ilium; femur and paddle bones
LIVUNI 4535Various bones of an immature individual; 21 vertebral centra together with neural arches, 10 dorsal and 20 ventral ribs; left side of pelvic girdle; both femora; 9 tarsals, 12 phalanges
LIVUNI 4536Coracoid and pubis
LIVUNI 4537a number of vertebrae, the right half of the pelvis and right femur of a small individual
LIVUNI 4538humerus, radius and ulna of large individual
unknown
NMN R8575description not available
not known Vertebrae, hindlimb and pectoral girdle.
not knowndescription not available














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