Genus: Alligatorellus GERVAIS, 1871
Species: beaumonti GERVIAS, 1871
= Subspecies: beaumonti beaumonti (WELLNHOFER, 1971)
= Alligatorellus beaumonti beaumonti WELLNHOFER, 1971
= Alligatorium beaumonti (GERVAIS, 1871)
Holotype: MNHL 15639
Locality: Cerin, Ain Department, France.
Horizon: Unkonwn bed.
Age: Upper Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.
Material: Part and counterpart slabs comprising a near-complete and articulated skeleton, missing the distal-most caudal vertebrae (preserved as impressions) and part of the left forelimb. Parts of the skull roof and a large portion of the right maxilla, along with several axial fragments, are embeded into the counterpart slab.
MHN Nr. 15638: Part slab comparising a near-complete and articulated skull and skeleton, missing just the distal-most caudal vertebrae, the right forelimb, and the distal left forelimb, all of whiech ar epreserved as impressions.
Species: bavaricus WELLNHOFER, 1971 (emend TENNANT & MANNION, 2014)
= Subspecies: beaumonti bavaricus (WELLNHOFER, 1971)
Etymology: In reference to where the specimen was found, Bavaria.
= Alligatorellus beaumonti bavaricus WELLNHOFER, 1971
Holotype: LMU (old BSPHGM Nr.) 1937 I 26
Locality: Eichstatt, Bayern (Bavaria) State, Germany.
Biostratigraphy: Hybonoticeras hybonotum zone.
Age: Lower Upper Tithonian Stage, Upper Malm Epoch, Late Jurassic.
Material: A near-complete skeleton including the skull, lacking only the left forelimb, compressed onto a slab of lithographic limestone.
EDUARD SCHOPFEI private collection: Skull and skeleton.
Locality: Painten, Bayern (Bavaria) State, Germany.
Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic.
Jura-Museum, Eichstatt: A nearly complete specimen.