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Stenopterygiidae Temporal range: Early Jurassic, 183–179 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Possible Middle Jurassic record
Stenopterygius quadriscissus fossil preserving soft tissue envelope
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Ichthyosauria
Clade:	†Baracromia
Family:	†Stenopterygiidae Jaekel, 1904
Genera
?Chacaicosaurus Magnipterygius Stenopterygius

Stenopterygiidae are a family of the Ichthyosauria, a group of extinct marine reptiles that superficially resemble fish. They are distinguished from other ichthyosaurs by the arrangement of the flipper bones and by the broad attachment of the fins to the body.

References

1. W. Maisch, Michael; T. Matzke, Andreas (2022). "Magnipterygius huenei n. gen. n. sp., a new small stenopterygiid (Reptilia: Ichthyosauria) from the Posidonienschiefer Formation of SW Germany". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 303 (2): 169–201. doi:10.1127/njgpa/2022/1042. S2CID 246797718. Retrieved 10 February 2022.

Further reading

• Long, J.A., Dinosaurs of Australia & New Zealand, UNSW Press, Australia 1998

v t e Ichthyosauromorpha
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Subclass: Diapsida Clade: Neodiapsida Sauropsida see Sauropsida Ichthyosauromorpha see below↓
Ichthyosauromorpha Ichthyosauromorpha Baisesaurus Hupehsuchia Eohupehsuchus Nanchangosaurus Hupehsuchidae Hupehsuchus Parahupehsuchinae Eretmorhipis Parahupehsuchus Ichthyosauriformes Omphalosauridae Cartorhynchus Omphalosaurus Sclerocormus Ichthyopterygia Isfjordosaurus? Chaohusaurus Thaisaurus Eoichthyosauria Grippidia Parvinatator Utatsusaurus Grippiidae Gulosaurus Grippia Ichthyosauria see below↓
Ichthyosauria Ichthyosauria Quasianosteosaurus Tholodus? Xinminosaurus? Cymbospondylidae Cymbospondylus Phantomosaurus? Thalattoarchon? Xinminosaurus? Hueneosauria Cymbospondylidae? Mixosauridae Barracudasauroides Contectopalatus Mixosaurus Phalarodon Merriamosauria Besanosaurus Guizhouichthyosaurus Pessopteryx? Wimanius? Shastasauridae Besanosaurus? Guanlingsaurus? Guizhouichthyosaurus? Himalayasaurus? Ichthyotitan? Shastasaurus Shonisaurus? Euichthyosauria Auroroborealia? Californosaurus Callawayia Guizhouichthyosaurus? Mikadocephalus? Shonisaurus? Toretocnemidae? Qianichthyosaurus? Toretocnemus Parvipelvia see below↓ Nomina dubia Barracudasaurus Pachygonosaurus Pessosaurus Sphaerodontes Svalbardosaurus Tibetosaurus
Parvipelvia Parvipelvia Hudsonelpidia Macgowania Neoichthyosauria Dearcmhara Hauffiopteryx Suevoleviathan Temnodontosauroidea? Temnodontosaurus Leptonectidae? Eurhinosaurus? Excalibosaurus? Leptonectes Wahlisaurus? Thunnosauria Ichthyosauridae Ichthyosaurus Malawania? Protoichthyosaurus? Baracromia Chacaicosaurus? Stenopterygiidae Magnipterygius Stenopterygius Ophthalmosauria Argovisaurus Delphinosaurus Macropterygius Ophthalmosauridae Arthropterygius? Gengasaurus? Jabalisaurus Janusaurus? Myobradypterygius Nannopterygius? Palvennia? Thalassodraco? Ophthalmosaurinae Acamptonectes Baptanodon Mollesaurus Ophthalmosaurus Platypterygiidae Acuetzpalin Aegirosaurus Arthropterygius? Athabascasaurus? Brachypterygius Catutosaurus Cryopterygius? Grendelius Janusaurus? Kazakhstanosaurus Keilhauia? Muiscasaurus Palvennia? Parrassaurus Pervushovisaurus Sumpalla Sveltonectes Undorosaurus Platypterygiinae Caypullisaurus Kyhytysuka Leninia Maiaspondylus Platypterygius Plutoniosaurus Simbirskiasaurus Sisteronia
Related categories Ichthyosaurs Marine reptiles Triassic reptiles

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