Genus: Stenopterygius JAEKEL, 1904
Etymology: Greek, stenos, “narrow”, Greek, pterygion, “fin” + us: Narrow fin.

Species: quadriscissus (QUENSTADT, 1858 emend FRAAS, 1891) JAEKEL, 1904
Etymology:

Lectotype: GPIT Q13

Locality: Holzmaden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age: Toarcien Stage, Upper Lias Epoch, Late Early Jurassic.

Material:

Referred material:

FMNH P.14621: Skull, skeleton, improved skin impressions and real impressions.

LINGHAM-SOLIAR, 2001

PMU R435: Nearly complete specimen with skin impression.

 

DEEMING, HALSTEAD, MANABE & UNWIN, 1993

Locality: Germany.

Horizon:

Biostratigraphy:

Age: Toarcian, Upper Lias Epoch, Early Jurassic.

Material:

GPIT 1297/1: Intact specimen with skin impressions and muscle impressions..

LINGHAM-SOLIAR & REIF, 1998

SMF 457: Nearly complete specimen with skin impressions.

= Ichthyosaurus acustirostris WAGER, 1852
Etymology:

Referred material:

MATTHEW, 1908

Locality: Holzmaden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age: Lower Lias Epoch, Early Jurassic.

Material:

AMNH: Nearly complete specimen with body outline.

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Species: megacephalus (DERVERMAN, 1914) HUENE, 1922
Etymology:

Locality: Holzmaden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age: Upper Lias Epoch, Late Early Jurassic.

Referred material:

Skeleton with body outline.

OUM JZ263: Skull and skeleton with body outline.

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Species: macrophasma (HAUFF, 1953) McGOWAN, 1979
Etymology:

Holotype: SMNS 16811

Locality: Holzmaden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age: Upper Lias Epoch, Late Early Jurassic.

Material: Skull and skeleton with body outline.

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Sp

Locality: Holzmanden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy:

Age: Lower Lias Epoch, Late Early Jurassic.

Material:

CM 6003: Skeleton of a juvenile with skin impressions.

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KELLER, 1992

Locality: Holzmanden, Baden-Wurttemberg State, Germany.

Horizon:

Horizon:

Biostratigraphy: Epsilon II.

Age: Lower Lias, Early Jurassic.

Material:

SMNS 10013, 56851, 56849, 568453: Skulls, skeletons and skin impressions.

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MARTILL, 1993

Locality: Holzmaden, Baden-Wurttemberg State, Germany.

Horizon:

Biostratigraphy: Posidonia Shales.

Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.

Material:

OUMTZ.163: Skull, skeleton and skin impressions.

BMNH R4086: Skull, skeleton and skin impressions.