Genus: Hainosaurus DOLLO, 1885
Etymology:

Species: bernardi DOLLO, 1885
Etymology:

Holotype: IRSNB R23 (old no. R1564)

Locality: 'La Malogne", near the town of Mesvin, Belgium.

Horizon: Ciply Phosphatic Chalk.

Biostratigraphy:

Age: Upper Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.

Skull reconstruction after LINGHAM-SOLIAR, 1992. A) Dorsal and B) Laterial views.

Referred material:

 

Locality: Baudoir, Belgium.

Horizon: Phosphatic Chalk.

Biostratigraphy:

Age: Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

IRSNB 3672: Nearly complete skull and large number of vertebrae.

 

= ?Leiodon anceps DEPERET & RUSSO, 1925

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= ?Leiodon anceps PERSSON, 1959

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Hainosaurus cf. bernardi MULDER & MAI, 1999

Locality: Folx-les-caves, Eastern Brabant Massif, Belgium.

Horizon: Tuffeau jaunatre.

Biostratigraphy: Zone CC 22 of Sissigh 1977.

Age: Early Late Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

MB.R. 890: Parietal.

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Species: gaudryi (THEVENIN, 1886)
Etymology:
= Mosasaurus gaudryi THEVENIN, 1886
= Hainosaurus bernardi BARDET, 1990

Holotype: MNHN 1896-15

Locality: Eclusier-Vaux, near Peronne, Somme Department, France.

Horizon: Phosphatic Chalk.

Biostratigraphy:

Age: Upper Santonian Stage, Senonian Subepoch, Middle Gulf Epoch, Late Cretaceous.

Material: Fragmentary skull, premaxilla, dentaries, maxillaries, frontal and partial parietal.
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Species: lonzeensis DOLLO, 1904
Etymology:

Holotype:

Locality: Lonzee, near Gembloux, Namur Province, Belgium.

Horizon: Lower Senonian.

Biostratigraphy:

Age: Lower Senonian Subepoch, Middle Gulf Epoch, Late Cretaceous.

Material: Premaxilla and caudal vertebrae.