Family
Valid Extinct

Cryptoclididae

Williston 1925

Cryptoclididae is a family of medium-sized plesiosaurs that existed from the Middle Jurassic to the Early Cretaceous. They had long necks, broad and short skulls and densely packed teeth. They fed on small soft-bodied preys such as small fish and crustaceans. The earliest members of the family appeared during the early Bajocian, and they represented the dominant group of long-necked plesiosaurs during the latter half of the Jurassic.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
72
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
Cryptoclididae
click to enlarge
Muraenosaurus leedsi © Dmitry Bogdanov · CC BY 3.0 · Wikimedia
PBDB Wikipedia
Classification
Sauropterygia Suborder
Plesiosauria Order
Plesiosauroidea Superfamily
Cryptoclididae Family
Fossil sites 72 geolocated sites
Distribution
Top countries
🇬🇧 United Kingdom
41
🇺🇸 United States
9
🇳🇴 Norway
8
🇫🇷 France
3
🇦🇷 Argentina
2
🇷🇺 Russia
2
🇨🇱 Chile
2
🇨🇺 Cuba
2
🇬🇱 Greenland
1
🇮🇳 India
1
Geological formations
Sundance
9
Agardhfjellet
7
Portland Stone
4
Lajas
2
Jagua
2
Lealt Shale
1
Argiles de Montaubert
1
Katrol
1
Temporal distribution
Aptian (121.4–113.2 Ma)
1
Hauterivian (132.6–125.77 Ma)
1
Tithonian (149.2–143.1 Ma)
15
Kimmeridgian (154.8–149.2 Ma)
12
Oxfordian (161.5–154.8 Ma)
17
Callovian (165.3–161.5 Ma)
24
Bathonian (168.2–165.3 Ma)
1
Bajocian (170.9–168.2 Ma)
1
Synonyms (1)
Cryptoclidus aldingeri nomen dubium, species not entered Cryptoclididae
Images 3
Bibliography
Original description
R. L. Carroll. 1988. Vertebrate Paleontology and Evolution.
Bibliography (44)
D. Madzia, T. Szczygielski, and A. S. Wolniewicz. 2021. The giant pliosaurid that wasn’t—revising the marine reptiles from the Kimmeridgian, Upper Jurassic, of Krzyżanowice, Poland. Acta Palaeontologica Polonica 66:1-31 DOI ↗
A. J. Roberts, P. S. Druckenmiller, and B. Cordonnier, L. L. Delsett, J. H. Hurum. 2020. A new plesiosaurian from the Jurassic-Cretaceous transitional interval of the Slottsmøya Member (Volgian), with insights into the cranial anatomy of cryptoclidids using computed tomography. PeerJ 8:e8652 DOI ↗
R. A. Otero, S. Soto-Acuña, and D. Rubilar-Rogers. 2015. El registro fósil de plesiosaurios (Sauropterigia) en Chile. Publicación Ocasional del Museo Nacional de Historia Natural, Chile 63:151-188
E. M. Knutsen, P. S. Druckenmiller, and J. H. Hurum. 2012. A new plesiosauroid (Reptilia: Sauropterygia) from the Agardhfjellet Formation (Middle Volgian) of central Spitsbergen, Norway. Norwegian Journal of Geology 92:213-234
E. M. Knutsen, P. S. Druckenmiller, and J. Hurum. 2012. Redescription and taxonomic clarification of ‘Tricleidus’ svalbardensis based on new material from the Agardhfjellet Formation (Middle Volgian). Norwegian Journal of Geology 92:175-186
E. M. Knutsen, P. S. Druckenmiller, and J. H. Hurum. 2012. Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen. Norwegian Journal of Geology 92:187-212
A. Y. Berezin. 2011. A new plesiosaur of the family Aristonectidae from the Early Cretaceous of the center of the Russian Platform. Paleontological Journal 45(6):648-660 DOI ↗
F. R. O'Keefe, H. P. Street, and B. C. Wilhelm, C. D. Richards, H. Zhu. 2011. A new skeleton of the cryptoclidid plesiosaur Tatanectes laramiensis reveals a novel body shape among plesiosaurs. Journal of Vertebrate Paleontology 31(2):330-339 DOI ↗
B. C. Wilhelm and F. R. O'Keefe. 2010. A new partial skeleton of a cryptocleidoid plesiosaur from the Upper Jurassic Sundance Formation of Wyoming. Journal of Vertebrate Paleontology 30(6):1736-1742 DOI ↗
F. R. O'Keefe, H. P. Street, and J. P. Cavigelli, J. J. Socha, R. D. O.'Keefe. 2009. A plesiosaur containing an ichthyosaur embryo as stomach contents from the Sundance Formation of the Bighorn Basin, Wyoming. Journal of Vertebrate Paleontology 29(4):1306-1310 DOI ↗
F. R. O'Keefe and H. P. Street. 2009. Osteology of the cryptocleidoid plesiosaur Tatenectes laramiensis, with comments on the taxonomic status of the Cimoliasauridae. Journal of Vertebrate Paleontology 29(1):48-57 DOI ↗
R. Araujo, A. S. Smith, and J. Liston. 2008. Alfred Leeds fossil vertebrate collection of the National Museum of Ireland - Natural History. Irish Journal of Earth Sciences 26:17-32 DOI ↗
A. S. Smith. 2007. The back-to-front plesiosaur Cryptoclidus (Apractocleidus) aldingeri from the Kimmeridgian of Milne Land, Greenland. Bulletin of the Geological Society of Denmark 55:1-7 DOI ↗
F. R. O'Keefe and W. Wahl, Jr. 2003. Current taxonomic status of the plesiosaur Pantosaurus striatus from the Upper Jurassic Sundance Formation, Wyoming. Paludicola 4(2):37-46
F. R. O'Keefe and W. Wahl. 2003. Current taxonomic status of the plesiosaur Pantosaurus striatus from the Upper Jurassic Sundance Formation, Wyoming. Paludicola 4(2):37-46
Z. Gasparini, N. Bardet, and M. Iturralde-Vinent. 2002. A new cryptoclidid plesiosaur from the Oxofrdian (Late Jurassic) of Cuba. Geobios 35:201-211 DOI ↗
M. Iturralde-Vinent and M. A. Norell. 1996. Synopsis of Late Jurassic marine reptiles from Cuba. American Museum Novitates 3164:1-17
M. J. Benton and P. S. Spencer. 1995. Fossil Reptiles of Great Britain. Chapman & Hall, London DOI ↗
J. B. Delair. 1993. Reptilia from the Portland Stone (Upper Jurassic) of England: a preliminary survey of the material and the literature. Modern Geology 18:331-348
Z. Gasparini and L. Spalletti. 1993. First Callovian plesiosaurs from the Neuquen Basin, Argentina. Ameghiniana 30(3):245-254
N. Bardet, J. -M. Mazin, and E. Cariou, R. Enay, J. Krishna. 1991. Les Plesiosauria du Jurassique supérieur de la province de Kachchh (Inde). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre 313(11):1343-1347
D. S. Brown, A. C. Milner, and M. A. Taylor. 1986. New material of the plesiosaur Kimmerosaurus langhami Brown from the Kimmeridge Clay of Dorset. Bulletin of the British Museum of Natural Histroy 40(5):225-234
D. M. Martill. 1986. The stratigraphic distribution and preservation of fossil vertebrates in the Oxford Clay of England. Mercian Geologist 10(3):161-186
A. Vadet and J. M. Rose. 1986. Catalogue commente des types et figures de dinosauriens, ichthyosauriens, sauropterygiens, pterosauriens et cheloninens du Musée d'Histoire Naturelle de Boulogne-sur-Mer [Annotated catalogue of the type and figured specimens of dinosaurs, ichthyosaurs, sauropterygians, pterosaurs, and turtles from the Musée d'Histoire Naturelle of Boulogne-sur-Mer]. In E. Buffetaut, J. M. Rose, & A. Vadet (eds.), Vértébrés Fossiles du Boulonnais. Mémoires de la Société Académique du Boulonnais 1(2):85-97
D. S. Brown. 1984. Discovery of a specimen of the plesiosaur Colymbosaurus trochanterius (Owen) on the Island of Portland. Proceedings of the Dorset Natural History and Archaeological Society 105:170
D. Martill. 1984. The occurrence of a dinosaurian phalanx in the Lower Oxford Clay of Peterborough, Cambridge. Mercian Geologist 9(4):209-211
D. S. Brown. 1981. The English Upper Jurassic Plesiosauroidea (Reptilia) and a review of the phylogeny and classification of the Plesiosauria. Bulletin of the British Museum (Natural History) 35(4):253-347
L.-D. Ginsberg and P. Janvier. 1976. Un nouveau gisement à Plésiosaures dans le Jurassique du Spitsbergen (Archipel du Svalbard) [A new locality with plesiosaurs in the Jurassic of Spitzbergen (Svalbard archipelago)]. Årbok Norsk Polarinstitutt 1974:262-265
R. L. Paton. 1975. A Catalogue of Fossil Vertebrates in the Royal Scottish Museum, Edinburgh. Part Four / Amphibia & Reptilia. Royal Scottish Museum Information Series. Geology 5
P. O. Persson. 1963. A revision of the classification of the Plesiosauria, with a synopsis of the stratigraphical and geographical distribution of the group. Lunds Universitets Arsskrift N. F. Serie 2 59(1):1-57
J. B. Delair. 1960. The Mesozoic reptiles of Dorset. Part two. Proceedings of the Dorset Natural History and Archaeological Society 80:52-90
W. R. Smellie. 1915. On a new plesiosaur from the Oxford Clay. Geological Magazine, decades 6 2:341-343 DOI ↗
H.-E. Sauvage. 1914. Catalogue des Reptiles Jurassiques du Boulonnais [Catalogue of Jurassic reptiles from the Boulonnais]. Bulletin de la société Academique de l'Arrondissement de Boulogne-sur-Mer 10:253-264
G. von Arthaber. 1906. Beiträge zur Kenntnis der Organisation und der Anpassungserscheinungen des genus Metriorhynchus. Beiträge zur Paläontologie und Geologie Österreich-Ungarns und des Orients 19(4):287-320
W. C. Knight. 1900. Some new Jurassic vertebrates. American Journal of Science, series 4 10:115-119 DOI ↗
H. G. Seeley. 1892. The Nature of the Shoulder Girdle and Clavicular Arch in Sauropterygia. Proceedings of the Royal Society of London 51:119-151
R. Lydekker. 1889. Catalogue of the Fossil Reptilia and Amphibia, Part II. Containing the orders Ichthyopterygia and Sauropterygia DOI ↗
H.-E. Sauvage. 1888. Sur les Reptiles trouvés dans le Portlandien supérieur de Boulogne-sur-Mer [On the reptiles found in the upper Portlandian of Boulogne-sur-Mer]. Bulletin de la Société Géologique de France, 3e série 16:623-632
H. G. Seeley. 1874. On Muraenosaurus leedsii, a plesiosaurian from the Oxford Clay, Part I. Quarterly Journal of the Geological Society of London 30:197-208 DOI ↗
J. Phillips. 1871. Geology of Oxford and the Valley of the Thames. Clarendon Press, Oxford DOI ↗
J. W. Hulke. 1870. Note on some plesiosaurian remains obtained by JC Mansel, Esq, FGS, in Kimmeridge Bay, Dorset. Quarterly Journal of the Geological Society 26:611-622 DOI ↗
R. Owen. 1869. Monographs on the British Fossil Reptilia from the Kimmeridge Clay III: contains Pliosaurus grandis, Pliosaurus trochanterius, and Pliosaurus portlandicus. Palaeontographical Society Monographs 22(98):1-12
H. G. Seeley. 1869. Index to the Fossil Remains of Aves, Ornithosauria, and Reptilia, from the Secondary System of Strata, Arranged in the Woodwardian Museum of the University of Cambridge. Deighton, Bell, and Co, Cambridge DOI ↗
R. Owen. 1840. Report on British fossil reptiles. Report of the British Association for the Advancement of Science 8:43-126