Dyrosaurus phosphaticus (Thomas 1893; Early Eocene; 6m in length) nests at the base of the sea crocs, derived from Dyoplax in the LRT. Tall neural spines and a double-layered postorbital distinguish this taxon. The mandible lacks a fenestra and the retroarticular processes are the largest in the Tetrapoda. The scapula is dorsally expanded.

Teleosaurus cadomensis (Geoffroy 1825; 3m in length; Middle Jurassic) was a crocodyliform that swam the open seas. The forelimbs were tiny. The MNHN AC 8746 specimen seems to be younger and smaller than the holotype, which was destroyed in WW2.

Metriorhynchus jaeckeli (von Meyer 1830, Early to Late Jurassic, 10 ft (3m) long) was a marine crocodilian with flipper-like limbs and a downturned shark-like or ichthyosaur-like tail. Several specimens are known, with longer narrower snouts and shorter broader snouts.Adults had salt glands for getting rid of excess salt. Derived from a sister to Dibothrosuchus.

Dakosaurus maximus (Plieninger 1846, von Quenstedt 1856) D. andiniensis (Vignaud and Gasparini 1996; Pol and Gasparaini 2010; Late Jurassic; 4.5 m long; MOZ 6146P) was first known from isolated serrated teeth and considered a theropod dinosaur. Now it is known from a massive skull with long teeth and nests with the sea-crocs. It would have been the killer whale of its day.

Geoffroy Saint-Hilaire E 1825. Considérations générales sur la monstruosité, et description d'un genre nouveau observe dans l'espéce humaine, et nommé aspalasome [General Considerations on Monstrosities, and a Description of a New Type Observed in the Human Species, Named Aspalasome]. Paris: Imprimerie de C.L.F. Pancoucke.

Jouve S 1005. A review of Dyrosaurus phosphaticus (Thoms , 1893) (Mesoeucrocodylia; Dyrosauridae) from the Lower Eocene of North Africa. Canadian Journal of Earth Science 42:323–337.

Meyer H Von 1830. Achte Versammlung der Naturforscher und Aerzte zu Heidelberg im September 1829. Isis von Oken, 1830: 517-519.

Plieninger T 1846. Prof. Dr. Th. Plieninger hielt nachstehenden vortrag über ein neues Sauriergenus und die Einreihung der Saurier mit flachen, schneidenden Zähnen in eine Familie. Pp. 148-154 in: Zweite Generalversammlung am 1. Mai 1846 zu Tübingen. Württembergische naturwissenschaftliche Jahreshefte 2: 129-183.

Pol D and Gasparaini Z 2010. Skull anatomy of Dakosaurus andiniensis (Thalattosuchia: Crocodylomorpha) and the phylogenetic position of Thalattosuchia. Journal of Systematic Palaeontology 7:163-197.

Vignaud P and Gasparini ZB 1996. New Dakosaurus (Crocodylomorpha, Thalattosuchia) from the Upper Jurassic of Argentina. Comptes Rendus de l'Académie des Sciences, Paris, 2 322: 245-250.

Quenstedt FA 1856. Sonst und Jetzt: Populäre Vortäge über Geologie. Tübingen: Laupp, 131.

Steel R 1973. Crocodylia. Handbuch der Paläoherpetologie, Teil 16. Stuttgart: Gustav Fischer Verlag, 116 pp.

Thomas P 1893. Description de quelques fossiles nouveaux ou critiques des terrains tertiaires et secondaires de la Tunisie recueillis en 1885 et 1886 par M. Philippe Thomas. Exploration scientifique de la Tunisie, Paris, France.

wiki/Dakosaurus
wiki/Metriorhynchus
wiki/Teleosaurus