Genus: Ichthyosaurus non De la BECHE & CONYBEARE, 1821

Species: thyreospondylus OWEN, 1849 (nomen dubium)
Etymology:
= Opthalmosaurus? thyreospondylus (OWEN, 1849) HUENE, 1902 (nomen dubium)
= Macropterygius thyreospondylus (OWEN, 1849) DELAIR, 1959 (nomen dubium)

Holotype: Cb 2489

Locality: Unknown, England, Southern United Kingdom.

Horizon: Kimmeridge Clay?

Biostratigraphy:

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

Material: 5 vertebrae (now distroyed, KIRTON, 1983).

Referred material:

MOON & KIRTON, 2018

OUMNH J10479, J10492, J10508, J12066, J12306, J12307, J12423, J12426, J12454, J12467, J12469, J12472, J12474, J12478, J12485, J12492, J12495: Vertebral centra.

 

Locality: England, Southern United Kingdom.

Horizon: Oxford Clay Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Malm Epoch, Late Jurassic.

Material:

OUMNH J12496: Centrum.

 

BENTON & SPENCER, 1995

Locality: Chawley Brick Pit, Hurst Hill, Cumnor, National Grid reference SP 475 043, 2. 5 miles WSW of the centre of Oxfordshire County, England, Southern United Kingdom.

Horizon: Upper Lower Kimmeridge.

Biostratigraphy: Aulacostrephanus pseudomutablilis zone.

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

Material:

Number: Not given:

 

DELAIR, 1960

Locality: Smallmouth Sands, Weymouth, (SY 669764-SY 672772), Dorset County, England, Southern United Kingdom.

Horizon: Lower Kimmeridge Clay.

Biostratigraphy:

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

Material:

OUMNH J.12491/1-6: 6 associated vertebrae.

 

Locality: Isle of Portland, Dorset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

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

Material:

NHMUK PF (old BMNH) 41776c: Early posterior dorsal vertebrae.

 

LYDEKKER, 1890

Locality: Isle of Portland, Dorset County, England, Southern United Kingdom.

Horizon: Oolite.

Biostratigraphy:

Age: Late Jurassic.

Material:

NHMUK PF (old BMNH) R1684: Centrum of a caudal vertebra.

 

MOON & KIRTON, 2016

Locality: Whittlesey, Cambridgeshire, England, Southern United Kingdom.

Horizon: Oxford Clay Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Late Jurassic.

Material:

NHMUK 47428a: Caudal vertebral centrum.

NHMUK 47428: Anterior caudal centrum.

 

Locality: Isle of Portland, Dorset, England, Southern United Kingdom.

Horizon: Portlandian.

Biostratigraphy:

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

Material:

NHMUK R1684: Caudal vertebral centrum.

 

Locality: Weymouth, Dorset, England, Southern United Kingdom.

Horizon: Kimmeridge Clay Formation.

Biostratigraphy:

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

Material:

OUMNH J12491: 6 vertebral centra.

 

Locality: Wheatley, Oxfordshire, England, Southern United Kingdom.

Horizon: Kimmeridge Clay Formation.

Biostratigraphy:

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

Material:

OUMNH J12492: Posterior presacral vertebral centra.

 

Locality: Buckingham, Buckinghamshire, England, Southern United Kingdom.

Horizon: Oxford Clay Formation.

Biostratigraphy:

Age: Callovian Stage, Dogger Epoch, Middle Jurassic.

Material:

OUMNH J12496: Anterior presacral vertebral centrum.

 

Locality: Duncham, Nottinghamshire, England, Southern United Kingdom.

Horizon: Kimmeridge Clay Formation.

Biostratigraphy:

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

Material:

OUMNH J12495: Anterior presacral vertebral centrum.

 

OWEN, 1854

Locality: Bristol, Gloucestershire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Lias Epoch, Early Jurassic.

Material:

ROYAL COLLEGE OF SURGEONS 177: A vertebral column.

ROYAL COLLEGE OF SURGEONS 178: A dorsal centrum.

 

Locality: Unknown, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Unknown.

Material:

ROYAL COLLEGE OF SURGEONS 179: Tooth.

 

= Ichthyosaurus aff. thyreospondylus SAUVAGE, 1894

Locality: Boulogne-sur-Mer, Pas-De-Calais Department, France.

Horizon: Portland.

Biostratigraphy:

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

Material:

Number: Not given: 3 fragmentary vertebrae.

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Species: posthumus WAGNER, 1852 (nomen dubium)
Etymology:
= Macropterygius posthumus (WAGNER, 1852) BARTHEL, SWINBURNE & MORRIS, 1990 (nomen dubium)
= Ichthyosaurus trigonus var posthumus (WAGNER, 1852) WAGNER, 1899 (sic)
= Ichthyosaurus trigonus posthumus (WAGNER, 1852) MERRIAM, 1908 (nomen dubium)

Holotype: Munich Museum.

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

Horizon: Solnhofen limestone.

Biostratigraphy:

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

Material: Teeth.
Note: Destroyed during WWII.

Referred material:

FRAAS, 1891

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

Horizon: Solnhofen.

Biostratigraphy:

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

Material:

Munich State Museum : Tooth.

 

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

Horizon: Solnhofen.

Biostratigraphy:

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

Material:

Munich State Museum : Vertebra.

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Species: cuvieri VALENCIENNES, 1861 (nomen dubium)
Etymology:
= Opthalmosaurus cuvieri (VALENCIENNES, 1861) SAUVAGE, 1902 (nomen dubium)

Holotype:

Locality: Boulogne, Normandy, France.

Horizon:

Biostratigraphy:

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

Material: Skull fragments and teeth, vertebrae.

Referred material:

SAUVAGE, 1902

Locality: Fumel, Lot-et-Garonne Department, France.

Horizon:

Biostratigraphy:

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

Material:

Number: Not given: Dentary.

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Species: normanniae VALENCIENNES, 1861 (nomen dubium)
Etymology: In reference to Normandy, France.
= Opthalmosaurus normanniae (VALENCIENNES, 1861) HUENE, 1902 (nomen dubium)

Holotype:

Locality: Boulogne, Normandy, France.

Horizon:

Biostratigraphy:

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

Material: Basioccipital, a basisphenoid and associated vertebrae.
Note: Lennier noted that I. cuvieri and I. normanniae belong to the same specimen.

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= Ichthyosaurus brunsvicensis BROILI, 1909 (nomen dubium)
= Ichthyosaurus (Platypterygius) brunsvicensis (BROILI, 1909) KUHN, 1946 (nomen dubium)
Etymology:
= Cf. Acamptonectes brunsvicensis (BROILI, 1909) emend FISCHER, MAISCH, NAISH, KOSMA, LISTON, JOGER, KRÜGER, PEREZ, TAINSH & APPLEBY, 2012 (nomen dubium)

Holotype:

Locality: Behrenbostel near Hannover, Saschen (Saxony) State, Germany.

Horizon:

Biostratigraphy:

Age: Neocomian Substage, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Basioccipital, basisphenoid, opisthotic, stapes, quadrate and partial parietal, partial element described as an "Episternum".
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