Genus: Stenopterygius JAEKEL, 1904
Etymology: Greek, stenos, “narrow,” Greek, pterygion, “fin” +
us: Narrow fin.
= Chacaicosaurus FERNANDEZ, 1994
Etymology: Chacaio Sur, Department of Zapala, Neuquen Province, Northwestern
Patagonia, Argentina, refers to the area where the holotype was found, and saurus
in Greek, sauros, "lizard": Chacaico lizard.
Species: quadriscissus (QUENSTADT, 1858 emend FRAAS, 1891) JAEKEL, 1904
Etymology:
Lectotype: GPIT Q13
Locality: Holzmaden, Baden-Württemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias II (3), Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton poorly preserved.
Syntypes (as per HUNGERBUHLER, 1994)
Geologischich-Palaontologisches Institut Tubingen, GPIT 1491/8: Fragmentary skull.
GPIT 1491/6: Skull and skeleton with 1 large embryo.
GPIT 43/26/3: Complete juvenile skeleton.
GPIT 43/02119-1: Adult skeleton with embryo.
Paralectotype:
Locality: Ohmden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias epsilon II, lower Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
GPIT 1491/9: Skull.
GPIT 29/9/2: Subadult skeleton.
Locality: Frittlingen near Rottweil, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias III, Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
GPIT 29/9/7: Skull and mandible.
Referred material:
HUNGEERBUHLER, 1994
GPIT C 06:
Locality: Holzmaden, Baden-Württemberg State, Germany.
Horizon: Posidonienschiefer Formation.
Biostratigraphy:
Age: Lias II (3), Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
Staatliches Museum fur Naturkunde, Stuttgart: 6293: Female skeleton with 1 embryo being born and 3 more in body cavity.
3775: Skull and skeleton.
10460: Female skeleton with 1 embryo and remnants of a second with body cavity, and 2 embryos with remnants of a third outside of the body.
Forschungsinstitut Senckenberg, frankfurt, 4235: Skull and skeleton.
4131: Female skeleton with 1 embryo in body cavity.
R 4154: Skull and skeleton.
ROM 3180: Fragmentary skull and skeleton.
Bayerische Staatssammlung fur Palaontologie und Historische Geologie, Munch: Z07: A near complete skeleton.
Museum Hauff, Holzmaden, 393: Isolated skull with some cervical vertebrae.
Z21: Female skeleton with 4 or 5 embryos.
Museum National d'Histoire Naturelle, Paris, 1884-24: Female skeleton with remnants of a single embryo.
1933-5: Skull with cervical vertebrae and ribs.
FMNH P.14621: Skull, skeleton, improved skin impressions and real impressions.
LINGHAM-SOLIAR, 2001
PMU R435: Nearly complete specimen with skin impression.
= cf. Stenopterygius quadrissicus VALLON, 2012/KELLER, 1977
SMNS 15194: A small ichthyosaur.
Note: Possible regurgitalite.
Locality: Baden-Wurttemberg State, Germany.Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
Paleontologiska Museet Uppsala Universitet, Sweden, R 160: Skull and skeleton.
GODEFROIT, 1994
Locality: Luxembourgh.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
MNHNL "M1":
MNHNL "M2":
Locality: "Luxguard," Dudelange, Luxembourg.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
WAT3: Fragmentary skull.
Locality: Krakelshof, Bettembourg, Luxembourg.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
STR 1: Fragmentary skull.
HUNGEERBUHLER, 1994
Locality: Holzmaden near Kirchheim/Teck, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias II, Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
No. 75232:
SL IV-1:
QU 1858: 219:
Note: Paraloectotype.
= Stenopterygius cf. quadriscissus BURGIN, 2000
NWSW Nr. J 30: Nearly complete skeleton (180 cm).
Note: With a skeleton of a 30 cm long fish in the stomach area (Euthynotus cf. incognitus)Locality: Holzmaden near Kirchheim/Teck, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias II (10), Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Martial:
Unpublished Quenstidet’s catalogue, No. 9775:
Ner. 2 (KELLER, 1976):
GPITZ 04:
Note: Paraloectotype.
Locality: Holzmaden near Kirchheim/Teck, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias II (3), Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
BL IV-3 (HOFMANN, 1958):
No. 11 (KELLER 1976):
DEEMING, HALSTEAD, MANABE & UNWIN, 1993
Locality: Germany.
Horizon:
Biostratigraphy:Age: Toarcian, Upper Lias Epoch, Early Jurassic.
Material:
BSPM 1940 I 501: Intact.
BSPM 1960 I 36A: “Small associated”.
BSPM 1060 I 36: Intact.
BSPM 1972 V 5: Skull.
GPIT Hu. 1931S351: Intact.
GPIT 1297/1: Intact specimen with skin impressions and muscle impressions..
Hauff Z21A: “Small associated”
Hauff Z21: Intact.
Hauff 2: Skull.
Hauff 3: Skull.
SMNS 10460A: “Small associated”.
SMNS 10460B: “Small associated”.
SMNS 10460C: “Small associated”.
SMNS 10460: Intact.
SMNS 3775: Intact.
SMNS 52036A: “Small associated”.
SMNS 52036B: “Small associated”.
SMNS S52036C: “Small associated”.
SMNS 52036: Intact.
SMNS 54064A: “Small associated”. (Stage 4 postnatal, MIEDEMA & MAXWELL, 2022),
SMNS 54064B: “Small associated”.
SMNS 53816: Intact.
SMNS 6293A: “Small associated”.
SMNS 6293: Intact.
SMNS 7402A: “Small associated”.
LINGHAM-SOLIAR & REIF, 1998
SMF 457: Nearly complete specimen with skin impressions.
MIEDEMA & MAXWELL, 2022
SMNS 12821: Postnatal 1 skull and fragmentary skeleton.
SMNS 54026: Postnatal 1.
SMNS 54062: Stage 4 embryo.SMNS 80234: Stage 3 embryo.
SMNS 81958: Postnatal.
SMNS 50003: Postnatal 2.
SMNS 51139: Postnatal 1.
SMNS 51551: Mature specimen.
SMNS 51554: Mature specimen.
SMNS 50376: Mature specimen.
SMNS 81961: Mature specimen.
SMNS 82046: Postnatal 1.
SMNS 82046: Postnatal 1.
DICK, 2015
Locality: Kirshmann Quarry, near the town of Holzmaden, Baden-Wurttemberg State, Germany.
Horizon: Posidonia Shale.
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Upper Lower Jurassic.
Material:
SMNS 81841: Fragmentary skull and skeleton.
Note: Ichthyosaur fall specimen.
MARTILL, 1987
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
FMNH P.146 21: Skull and skeleton.
WEEDEN & CHAPMAN, 2022
Locality: Kettleness, Yorkshire County, England, Southern United Kingdom.
Horizon: Alum Shales.
Biostratigraphy: H. bifrons biozone.
Age: Toarcian Stage, Lias Epoch, Early Jurassic.
Material:
WMY 876S: Skeleton in left lateral view.
Note: Ichthyosaur Young & Bird, 1822, Stenoperygius acutirostris McGowan, 1974, Leptopterygius acutirostris Benton & Taylor, 1984, Stenopterygius quadriscissus McGowan & Motani, 2003, Lomax, 2918 (as WHITM SIM 876S) (from Weeden & Chapman, 2022).
Locality: Yorkshire County, England, Southern United Kingdom.
Horizon:
Biostratigraphy:
Age: Lias Epoch, Early Jurassic.
Material:
WMY 876S-H1: Skull with decurved rostrum.
Note: Stenopterygius scutirostris McGowan, 1974, Stenopterygius longifrons Motani, 2005 (as WM SIM 876.2), Stenopterygius triacissus (Stenopterygius longifrons synonym of Stenopterygius tricissus) Maisch, 2008, Stenpterygius sp Lomax, 2019 (as WHTM SIM 876.2) (from Weeden & Chapman, 2022).
= Ichthyosaurus acutirostris WAGNER, 1852
Etymology:Holotype:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Referred material:
WOODWARD
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material:
Number: Not given: Skull and skeleton showing embryos.
ANONOMYOUS, 1901
AMNH: Skull and skeleton with embryos.
MATTHEW, 1908
AMNH: Nearly complete specimen with body outline.
= Ichthyosaurus acutirostris var microdon WAGNER, 1852
Etymology:
= Ichthyosaurus microdon WAGNER, 1852Holotype: ?
Locality: Holzmaden and Ohmden, , Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material: 3 skeletons.
= Ichthyosaurus quadriscissus QUENSTADT, 1858
= Ichthyosaurus tenuirostris quadriscissus (QUENSTADT, 1958) WURSTUMBUGER, 1876
Etymology:Number:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius quadriscissus HUENE, 1922 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
= Stenopterygius crassicostatus HUENE 1951: Skull and
skeleton of a female with 2 embryos.GPIT 1491/3: Skull and skeleton of a juvenile.
= Stenopterygius crassicostatus FRAAS, 1891
Etymology:Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
= Stenopterygius crassicostatus mut antecedens (FRAAS, 1891) HUENE, 1931
Etymology:Holotype:
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton.
= Stenopterygius quadriscissus WIMAN, 1922 (partim)
Locality: Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material:
Number: Not given: Skull and skeleton.
= Ichthyosaurus crassicostatus DREVERMANN, 1922
= Stenopterygius crassicostatus (DREVERMANN, 1922)Holotype:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius quadriscissus HUENE, 1936 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
= Stenopterygius quadriscissus mut eos HUENE, 1931
Etymology:Holotype:
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material: Skull and skeleton.
= Stenopterygius quadriscissus mut intercednes HUENE, 1931
Etymology:Holotype:
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material: Skull and skeleton.
= Ichthyosaurus incessus HUENE, 1949
Etymology:Paralectotypus: SMNS 10460
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Lectotypes: GPIT 149/1, 2, 8, SMNS 15033, QUM JZ 163, NMS 4235, Deutsches Museum Munchen, Zoologisches Museum Kiel, MHH 'Z 21', NMS R4154, Naturkundemuseum Tucman, Naturkundemuseum Stettin, whol Kriegsverlust, SMNS 50963 (Stage 2 postnatal, MIEDEMA & MAXWELL, 2022), 54064, 55748, 53001, 7402, 55934, 51948, "Hauff Nr. 155':
= Stenopterygius eos HUENE, 1949
Etymology:Lectotype: SMNS 3775:
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias & II, 3
Age: Lower Lias Epoch, Early Jurassic.
Material:
Syntypes: SMNS 6293, PMUU R160, Zoologischer Garten Berlin:
= Stenopterygius macrophasma (HAUFF, 1953) McGOWAN, 1979
Etymology:
= Stenopterygius quadriscissus HAUFF, 1953Holotype: SMNS 16811
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias & II, 4
Age: Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton with body outline.
Referred material:
MNHP 1849-29: Skull and skeleton.
DEEMING, HALSTEAD, MANABE & UNWIN, 1993
Locality: Germany.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
SMNS 16811A: “Small associated”.
SMNS 16811: Intact.
= Stenopterygius antecedens HOFFMAN, 1958
Etymology:Holotype:
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
NON Ichthyosaurus quadriscissus FRAAS, 1891
NON Stenopterygius quadriscissus WIMAN, 1922
NON Stenopterygius quadriscissus HAUFF, 1936Referred material:
ANTI, 1981
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lower Lias Epoch, Early Jurassic.
Material:
25514: Skull and skeleton.
25516: Skull and skeleton.
25518: Skull and fragmentary skeleton.
25519: Fragment of paddle.
= Ichthyosaurus longipes WURSTEMBERGER, 1876
Etymology: Latin, longus, "long" and Latin, pes, “foot.”
= Stenopterygius longipes (WURSTEMBERGER,
1876) McGOWAN, 1979
Holotype: GPIT 1491/5
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch? Late Early Jurassic.
Material: Skull and skeleton poorly preserved.
Referred material:
SMNS B12: Skull and skeleton.
= Leptopterygius acutriostris KUHN, 1934 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
= Stenopterygius megacephalus (DERVERMAN, 1914) HUENE, 1922
Etymology:
= Ichthyosaurus megacephalus DERVERMAN, 1914Lectotype: AL C01
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias & II, 6
Age: Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton.
Referred material:
Krantzsche Mineralienhalkung: Skull and skeleton.
Tubingen: Skull and skeleton of a juvenile.
GPIT 1491/14: A partial skeleton.
Skeleton with body outline.
OUM JZ263: Skull and skeleton with body outline.
BSPM 1940/15: Skull and skeleton.
HNS Q26: Skull and skeleton.
DEEMING, HALSTEAD, MANABE & UNWIN, 1993
Locality: Germany.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Early Jurassic.
Material:
GPIT 1491/11: Intact.
GPIT Hu. 1931S357: Intact.
GPIT Hu. 1931S357: Intact.
Hauff 5: Intact.
= Eurypterygius quadriscissus DERVERMAN, 1914
= Ichthyosaurus quadriscissus DERVERMAN, 1914Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
= Stenopterygius promegacephalus HUENE, 1949
Etymology:Syntype: GPIT Re 1297/2
Locality: Zell near Kirchheim/Teck, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias I. 2.
Age: Lower Toarcian Stage, Upper Lias Epoch, Early Jurassic.
Material: Incomplete juvenile skull and skeleton.
Referred material:
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias I (2).
Age: Lower Toarcian Stage, Upper Lias Epoch, Early Jurassic.
Material:
Nr. 19137 (Unpublished Quenstedet’s Catalogue): Fragmentary skeleton.
NR. 223: Fragmentary skeleton.
= Stenopterygius megalorhinus (ABEL, 1919) HUENE, 1922
Etymology:
= Stenopterygius sp ABEL, 1919Lectotype: Kremsmunster, BMK 813B
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias & II, 4
Age: Lower Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton.
Referred material:
SMNS 496: Skull and skeleton.
GPIT 1491/11: Skull and skeleton.
SMNS 5007: Skull and skeleton.
HNS Z20: Skull.
Locality: Ohmden, Baden-Wurttemberg State, Germany.Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
Naturhistorisches Museum, Vienna: Skull and skeleton.
_____________________________________________________________________________________
Species: uniter HUENE,
1931
Etymology:
Holotype: SMNS 14216
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon: LIAS e II, 6-11
Biostratigraphy:
Age: Lower Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton of an adult.
Neotype: GPIT 1491/10: Skull and skeleton of a young adult.
Referred material:
= Stenopterygius quadriscissus WIMAN, 1922 (partim)
Locality: Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
PMUU R167: Skull and skeleton.
MHH '15', SMNS 17500, 57532, Außerdem, SMNS 81719 (with ichnotaxon pitting and chipping, scaveginging attributed possibly crustaceans or natiloids, JAMISON-TODD, UPCHURCH & MANNION, 2023), et was Zerfallenes skelett, Lias & II, 10, Ohmden: Skulls and skeletons.
WIMAN, 1921/PARDO-PEREZ, KEAR, GOMEZ, MORONI & MAXWELL, 2018
Stenopterygius uniter PMU 24320: Skull and skeleton.
Note: Traumatic ingury to the mandible and presacral ribs (3 healed ribs), ankylosis vertebrae 34, 35, calluses on the right side midsection of ribs 29-34, and co-ossification of dorsal neural spines 34-45.
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton.
Referred material:
SMNS 17500: Skull and skeleton.
= Stenopterygius cf. S. uniter SCHOCH, 2008
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
GPIT 1491/12: Skull and skeleton.
= Stenopterygius crassicostatus (DREVERMANN, 1922) FRAAS, 1891 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius quadriscissus (QUENSTADT, 1858 emend FRAAS, 1891) WIMAN, 1921Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius megacephalus (DERVERMAN, 1914) HUENE, 1922 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius megalorhinus (ABEL, 1919) HUENE, 1922 (partim)
Syntype: Sammlung Ruhle von Lillienstern, Bedheim, Verschollen
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius promegacephalus HUENE, 1949 (partim)
Syntype: SMNS 4865
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius cuneiceps (HUENE, 1922) McGOWAN, 1979
Etymology:
= Stenopterygius crassicostatus HUENE, 1922 (nomen dubium)
Etymology:Holotype: NMC 8161
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy: Lias & II, 10
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material: Skull and skeleton.
Referred material:
SMNS 7402: Skull and skeleton of a female with an embryo.
Locality: Ohmden, Baden-Wurttemberg State, Germany.Horizon:
Biostratigraphy:
Age: Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
MHH 15: Skull and skeleton.
= Stenopterygius quadriscissus WIMAN 1922 (partim)
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
Number: Not given:
_____________________________________________________________________________________
Species: triscissus (QUENSTDT, 1856) WOODWARD in von ZITTEL, 1932
= Ichthyosaurus triscissus QUENSTADT,
1858
Etymology:
Holotype: GPIT 12/0224-2
Locality: Ohmden near Kirchheim/Teck, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Lias Epoch, Late Early Jurassic.
Material: Skeleton.
Referred material:
GPIT C 06:
CAIN & BENTON, 2011
Locality: Strawberry Bank Quarry (now built over), north of the High Street, in an area called the Triangle, Ilminster, Somerset County, England, Southern United Kingdom.
Horizon:
Biostraitigraphy: Harpoceras serpentinum Zone.
Age: Lower Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
BRLSI M1405:Partial post-cranium of neonate or foetus showing 23 ribs, left and right pelvic girdle and 8 vertebrae.
Note: Ichthyosaurus acutirostris Moore, 1866, Stenopterygius hauffianus McGowan, 1978, Stenopterygius triscissus Caine & Benton, 2011, Smithwick, 2019, Srdic et al, 2021 (from Weeden & Chapman, 2022).
BRLSI M1407: Pectoral girdle with partial forefins.
BRLSI M1408: Partial skeleton of neonate of foetus lacking limbs and tail.
Not: Icnthyosaurus acutirostris Moore, 1966, Stenopterygius triscissus Caine & Benton, 2011 (from Weeden & Chapman, 2022).
BRLSI M1409, M1398: Near complete skeleton of juvenile BRLSI M1409 with three-dimensional skull and lacking from rostrum, end of tail and most of the hind fin, associated with left forefin BRLSI M1398.
Note: Ichthyosaurus acutirostris Moore, 1866, Stenopterygius hauffianus McGowna, 1978, Stenopterygius triscissus Caine & Benton, 2011, Smithwick, 2019, Srdic et al, 2021 (from Weeden & Chapman, 2022).
WEEDEN & CHAPMAN, 2022
BRLSI M3558: Partial skeleton.
Note: Leptopterygius tenuirostris McGowan, 1990, Stenopterygius triscisus Srdic et al, 2021 (from Weeden & Chapman, 2022).
WEEDEN & CHAPMAN, 2022
Locality: Whitby, Yorkshire County, England, Southern United Kingdom.
Horizon:
Biostratigraphy:
Age: Early Jurassic.
Material:F
NHMUK PV R 792: Poorly presrved thre-dimensional skull.
Note: Ichthyosaurus acutirostris Lydekker, 1889, Indeterminate Benton & Taylor, 1984, Stenopterygius longifrons Motani, 2005, Stenopterygius triscissus Maisch, 2008 (Stenopterygius longifrons synonym of Stenopterygius tricissus), Stenopterygius sp Lomax, 2019 (from Weeden & Chapman, 2022).
= Stenopterygius longifrons (OWEN, 1881) GODEFROIT, 1993
Etymology: Latin, longus, "long" and Latin, frons, "brow, forehead."
= Ichthyosaurus longifrons OWEN, 1881Holotype: NHMUK PV (old BMNH) 33157
Locality: Curcy, near Caen, Normandy, Calavados Department, France.
Horizon:
Biostratigraphy: Bifrons Zone.
Age: Middle Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material: A partial skull.
Referred material:
OWEN, 1865
Locality: Cotteswold Hills, England, Southern United Kingdom.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given: Skull.
GODEFROIT, 1993/ EUDES DESLONGCHAMSP, 1875, OWEN 1881.
Locality: Quarries of Curcy, Normandy, Calavados Department, France.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/EUDES DESLONGCHAMPS, 1875, MAZIN, 1988Locality: Caen, Normandy, Calavados Department, France.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/HUENE, 1922 (pl. 8, fig. 2)
Locality: Holzmaden, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/HUENE, 1922
Locality: Ohmen, Baden-Wurttemberg State, Germany.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/HUENE, 1922 (described by THEODORI, 1854).
Locality: Banz, Bayern (Bavaria) State, Germany.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/HUENE, 1922
Locality: Donau-Mains-Kanals, Germany.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
/HUENE, 1939
Locality: Moleson, Freiburg Canton, Switzerland.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given:
= Stenopterygius cf. quadriscissus (per MAISCH & ANSORGE, 2004) /HUENE, 1922
Locality: Dobbertin, Mecklenburg-Western Pomerania State, Germany.
Horizon:
Biostratigraphy: Harpoceras falciferum Zone.
Age: Lower Toarcian Stage, Upper Lias Epoch, Late Early Jurassic.
Material:
Number: Not given: Fragmentary skul.
Note: GODEFROIT, 1993, ‘--is too incomplete of valid specific determination.
Locality: Esch-sur-Alzette, Luxenbourg.Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
IRSNB R124: A nearly complete skull.
Locality: Sanem, Dudelange, Luxemburg.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Musee national d’Histoire naturelle de Luxembourg, MNHNL TU 332
Locality: Galvalange, Dudelange, Luxemburg.Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
Private collection of D. Delsate, DEL 1: A partial skull and partial skeleton.
Locality: Dudelange, Luxemburg.
Horizon:
Biostratigraphy:
Age: Upper Lias Epoch, Late Early Jurassic.
Material:
MMD 5, MMD 1: 2 partial skeletons.
GODEFROIT, 1994
Localityi: Basecharage, Luxenbourg.
Horizon:
Biostratigraphy:
Age: Upper Lias, Late Early Jurassic.
Material:
IRSNB R125: Nearly complete skull.
MAISCH & REISDORF, 2006
Locality: Creux de l'Ours, Switzerland.
Horizon: Posidonienschiefer.
Biostratigraphy:
Age: Early Toarcian Stage, Upper Lias Epoch, Early Jurassic.
Material: .
NMBE C 5012: Almost complete specimen.
NMBE D 2687, 2686: Ribs
Note: From NMBE C 5012.
MGL 40947-40950, 42001-42005: Ribes and vertebrae.
= Stenopterygius megacephalus (DERVERMAN, 1914) HUENE, 1922 (partim)
Lectotype: SMNS 14846
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
= Stenopterygius megalorhinus (ABEL, 1919) HUENE, 1922 (partim)Lectotype: GPIT PV 24306: Skull and skeleton.
GPIT 1491/7: Skull and skeleton.
GPIT 1491/10: Skull and skeleton.
Vollst. Skelett Privatsammlung R. Leicht, Vaihingen:
Museum Caen, Im 2. WK zerstort, Priavatsammlung Ward, Rochester/NY:
SMNS 54027:
Privatsammlung Bottcher, Berine (Verbleib?):
BSPM 1940/50:
= Ichthyosaurus tenuirostris QUENSTEDT, 1858 (partim)
= Ichthyosaurus acutirostris LYDEKKER, 1888, (partim)
= Ichthyosaurus zetlandicus LYDEKKER, 1889, (partim)
_____________________________________________________________________________________
Species: aaleniensis MAXWELL, FERNANDEZ & SCHOCH, 2012
Etymology:
The specific epithet reflects the stratigraphic provenance of
holotype.
Holotype: SMNS 90699
Locality: Road-cut 700 m SE of the center of Zell am Aichelberg, along the road to Bad Boll, Kreis Göppingen, Baden-Württemberg State, Germany.
Horizon:
Biostratigraphy: opalinum zone, torulosum subzone.
Age: Lower Aalenian, Lower Dogger Epoch, Middle Jurassic.
Material: An articulated specimen of a mature adult preserving the posterior skull, presacral vertebral column, pectoral girdle and forelimb.