Species: asthenodeirus OWEN, 1842 (nomen dubium)
Etymology:

Holotype:

Locality: Shotover, Oxfordshire County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material: 2 cervical vertebrae and a dermal scute.

Referred material:

OWEN, 1854

Locality: Shotover, Oxfordshire County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material:

ROYAL COLLEGE OF SURGEONS 28: Cervical vertebra.

ROYAL COLLEGE OF SURGEONS 29: Dorsal vertebra.

ROYAL COLLEGE OF SURGEONS 30; 2 dorsal vertebrae.

PHILLIPS, 1871

Refers to other specimens which 'give the form of the atlas and the anterior part of the axis conjoined with it'.

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Species: portlandi QUENSTEDT, 1852 (nomen dubium)
Etymology:

Holotype:

Locality: Baden-Wurttemberg State, Germany.

Horizon: Ornatenthon.

Biostratigraphy:

Age: Oxfordian Stage, Lower Malm Epoch, Late Jurassic.

Material: Tooth.
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Species: ornati QUENSTEDT, 1852 (nomen dubium)
Etymology:

Holotype:

Locality: Near St. Verena, Solothurn Canton, North-west Switzerland.

Horizon: Portlandian.

Biostratigraphy:

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

Material: Tooth.
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Species: ischnodon CHARLESWARTH, 1855 (nomen dubium)
Etymology:

Holotype:

Locality: Whitby, Yorkshire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Upper Lias Epoch, Upper Early Jurassic.

Material: Teeth.
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Species: lacunosae QUENSTEDT, 1858 (nomen dubium)
Etymology:

Holotype:

Locality: Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age:

Material: Teeth.
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Species: parkinsoni QUENSTEDT, 1858 (nomen dubium)
Etymology:

Holotype:

Locality: Ehningen, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age:

Material: 8 imperfect vertebrae.
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Species: oplites DESLONGCHAMPS, 1863 (nomen dubium)
Etymology:
= Steneosaurus oplites (DESLONGCHAMPS, 1863) (nomen dubium)
Etymology:

Holotype: Number not given.

Locality: Calvados Department, Normandy, France.

Horizon:

Biostratigraphy:

Age: Upper Lias Epoch, Upper Early Jurassic.

Material: 2 vertebrae and dermal armor.
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Species: atelestatus DESLONGCHAMPS, 1863 (nomen dubium)
Etymology:
= Steneosaurus atelestatus (DESLONGCHAMPS, 1863) (nomen dubium)

Holotype: Number not given.

Locality: Calvados Department, Normandy, France.

Horizon: Lower Oolite.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Late Jurassic.

Material: Poorly preserved vertebrae.
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Species: picteti DeTRIOBOLET, 1873
Etymology:
= Steneosaurus picteti (DeTRIOBOLET, 1873)

Holotype:

Locality: Neuchatel, Switzerland.

Horizon: Portlandian.

Biostratigraphy:

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

Material: Teeth, vertebrae, ribs, and dermal scutes.

Referred material:

HUENE, 1926

Locality: Solothurn near St. Verena, Solothurn Canton, Switzerland.

Horizon: Portlandian.

Biostratigraphy:

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

Material:

Number: Not given: Lower jaw material, vertebrae, an occiput, a femur and teeth.

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Species: latifrons OWEN, 1884
Etymology:
= Steneosaurus latifrons (OWEN, 1884)

Holotype:

Locality: Northamptonshire County, England, Southern United Kingdom.

Horizon: Great Oolite.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Imperfect skull and lower jaw.

Referred material:

LYDEKKER, 1888

Locality: Northamptonshire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Upper Lias Epoch, Upper Early Jurassic.

Material:

BMNH 47171: Imperfect skull.

BMNH 47474a: Tooth.

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