Genus: Macropterygius HUENE, 1923
Etymology: Greek, makros, “long”, Greek, pterygion, “fin” + us: Long fin.

Species: trigonus (OWEN, 1840) HUENE, 1923
Etymology:
= Ichthyosaurus trigonus OWEN, 1840

Holotype: Benett collection at the Academy of Natural Sciences of Philadelphia, ANSP 10124.

Locality: Westbrook, in Bromham, Wiltshire County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material: Vertebral centrum.

Referred material:

MOON & KIRTON, 2018

OUMNH J12-64, J12483, J.12491: Dorsal vertebra, ankyloses atlas-axis complex and caudal vertebra respectively.

Neotype: Now lost

Locality:? Swindon, Wiltshire and Shotover, Oxford, Respectively, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material: Cervical, dorsal and caudal vertebrae.

Referred material:

BENTON & SPENCER, 1995

Locality: Roswell Pits, Ely, (TL 555808, TL 552807), Cambridgeshire County, England, Southern United Kingdom.

Horizon: Lower Kimmeridge Clay.

Biostratigraphy:

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

Material:

Number: Not given:

 

Locality: Kimmeridge Bay, Gaulter Gap-Broad Bench, Dorset County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material:

Number: Not given:

 

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

Material:

Number: Not given:

 

DELAIR, 1960

Locality: Weymouth and Kimmeridge Bay, Dorset County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material:

NHMUK PF (old BMNH) 417756, 41776d, 47506: Middle and late dorsal vertebrae.

 

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

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material:

NHMUK PF (old BMNH) 41776a: Late dorsal vertebrae.

NHMUK PF (old BMNH) 41776b: A caudal centrum.

NHMUK PF (old BMNH) 41958: A left coracoid.

NHMUK PF (old BMNH) 42283:

 


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

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material:

NHMUK PF (old BMNH) 42283-6: Humeri.

 

Locality: Stokes Wake, Dorset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

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

Material:

Dorset County Museum G.145, B.146: Vertebrae.

 

DELAIR, 1966

Locality: Beach at Freshwater Point, near Encombe, Dorset County, England, Southern United Kingdom.

Horizon: Kimmeridge Clay.

Biostratigraphy:

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

Material:

Number: Vertebrae and rib fragments.

V 1225 HMG: Vertebra.

 

DELAIR & WIMBLEDON, 1993

Locality: Okus Quarry, Swindon, Wiltshire County, England, Southern United Kingdom.

Horizon: ‘oolite’, Portland Stone.

Biostratigraphy:

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

Material:

SwM: Centa.

CRYNH: Humerus.

 

SAUVAGE, 1894

Locality: Boulannais, France.

Horizon: Portlandian.

Biostratigraphy:

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

Material:

Number: Not given:

 

= Ichthyosaurus posthumus WAGNER, 1852 (nomen dubium)
Etymology:
= Macropterygius posthumus (WAGNER, 1852) (nomen dubium)
= Ichthyosaurus trigonus var posthumus (WAGNER, 1852) (sic)

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.

 

= Ichthyosaurus leptospondylus FRAAS, 1891

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

Horizon: Solnhofen limestone.

Biostratigraphy:

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

Material:

Munich State Museum: Vertebra.

 

= Ichthyosaurus cuvieri VALENCIENNES, 1861 (nomen dubium)
Etymology:
= Opthalmosaurus cuvieri (VALENCIENNES, 1861) (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.

 

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

_____________________________________________________________________________________

Species: thyreospondylus (OWEN, 1849) (nomen dubium)
Etymology:
= Opthalmosaurus? thyreospondylus (OWEN, 1849) (nomen dubium)
= Ichthyosaurus thyreospondylus OWEN, 1849 (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.

 

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.