Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Ordo: †Ichthyosauria
Familia: †Stenopterygiidae
Genera (1): Stenopterygius
References
Maxwell, Erin E., Marta S. Fernández & Rainer R. Schoch. 2012 First Diagnostic Marine Reptile Remains from the Aalenian (Middle Jurassic): a New Ichthyosaur from Southwestern Germany. Public Library of Science 7(8): e41692. DOI: 10.1371/journal.pone.0041692
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