Genus: Gnathosaurus MEYER, 1834
Etymology: Greek, gnathos, “jaw” and Greek, sauros, "lizard."

Species: subulatus MEYER, 1834
Etymology: Latin, subula, “awl”; i.e. awl shape.
= Crocodilus multidens MÜNSTER, 1832
Etymology: Latin, multus, “many” and Latin, dentatus, “toothed”; Many toothed.
= Gnathosaurus multidens (MÜNSTER, 1832) 1832) WALTHER, 1904 (nomen nudum)
= Gavialis priscus QUENSTEDT, 1855 (nomen dubium)

Holotype: Bayer. Statssammlung Munchen, AS VII 369

Locality: Solnhofen, Bayern (Bavaria) State, Germany.

Horizon: Solnhofen, Malm Zeta.

Biostratigraphy:

Age: Upper Tithonian Stage, Upper Malm Epoch, Late Jurassic.

Material: Dentary.

Referred material:

MAYR, 1964

Locality: Eichstatt, Bayern (Bavaria) State, Germany.

Horizon: Solnhofen, Malm Zeta.

Biostratigraphy:

Age: Upper Tithonian Stage, Upper Malm Epoch, Late Jurassic.

Material:

Phil.-Theol. Hochschule Eichstatt, Nr. 1951.84: Skull.

After Wellenhofer, 1970.

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Species: macrurus (SEELEY, 1869) HOWSE & MILNER, 1995
Etymology: Greek, makros, “long” and Greek, oura, “tail”; long tail.
= Pterodactylus macrurus SEELEY, 1869 (nomen dubium)
= Doratorhynchus validus (OWEN) SEELEY, 1875 (partim) non OWEN, 1870)
= Doratorhynchus validum (OWEN) WOODS, 1891 (partim) non OWEN, 1870
Etymology: Latin, validus, “strong, powerful.”

Lectotype: SMC J5339

Locality: Quarry near Langton Matravers, Purbeck, (The precise locality is not known), Dorset County, England, Southern United Kingdom.

Horizon: Purbeck Limestone Formation.

Biostratigraphy:

Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic or Berriasian Stage, Lower Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Anterior region of mandible of a medium-sized pterodactylid.