Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Ichthyosaurus extremus

Reptilia - Ichthyosauridae

Taxonomy
Ichthyosaurus extremus was named by Boulenger (1904).

It was synonymized subjectively with Aegirosaurus leptospondylus by Bardet and Fernandez (2000); it was recombined as Brachypterygius extremus by Huene (1922), Delair (1960), Fernandez (1997), McGowan (1997), Maisch and Matzke (2000), McGowan and Motani (2003), Maisch (2010), Fischer et al. (2013), Arkhangelsky and Zverkov (2014) and Ji et al. (2016).

Synonyms
Synonymy list
YearName and author
1904Ichthyosaurus extremus Boulenger
1922Brachypterygius extremus Huene
1960Brachypterygius extremus Delair p. 68
1976Brachypterygius mordax McGowan
1976Grendelius mordax McGowan pp. 671-674 figs. 1; 2A, B, C, F; 3
1997Brachypterygius extremus Fernandez
1997Brachypterygius extremus McGowan
2000Brachypterygius extremus Maisch and Matzke p. 79
2000Brachypterygius mordax Maisch and Matzke p. 79
2000Brachypterygius mordax Sander
2003Brachypterygius extremus McGowan and Motani
2010Brachypterygius extremus Maisch
2010Brachypterygius mordax Maisch
2013Brachypterygius extremus Fischer et al.
2014Brachypterygius extremus Arkhangelsky and Zverkov
2016Brachypterygius extremus Ji et al. p. 13

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Ichthyosauromorpha
—Ichthyosauriformes
—Ichthyopterygia(Owen 1840)
—Eoichthyosauria
—Ichthyosauria(de Blainville 1835)
—Thunnosauria
familyIchthyosauridaeBonaparte 1841
genusIchthyosaurusKoenig 1818
speciesextremusBoulenger 1904

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Ichthyosaurus extremus Boulenger 1904
show all | hide all
Diagnosis
ReferenceDiagnosis
M. W. Maisch and A. T. Matzke 2000"Forefin very short and wide, humerus rather short."