PBDB Taxon

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

Icarosaurus

Osteichthyes - Kuehneosauridae

Taxonomy

Icarosaurus was named by Colbert (1966). It is not extant. Its type is Icarosaurus siefkeri.

It was assigned to Kuehneosauridae by Robinson (1967), Estes (1983), Benton (1985), Carroll (1988).

Species

I. siefkeri (type species)

Synonymy list

Year	Name and author
1966	Icarosaurus Colbert p. 5 figs. 3-10
1967	Icarosaurus Robinson p. 172
1983	Icarosaurus Estes
1985	Icarosaurus Benton p. 154
1988	Icarosaurus Carroll

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
class	Osteichthyes
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967

Rank	Name	Author
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Eosuchia	()
—	Neodiapsida
—	Sauria	Gauthier 1984
—	Lepidosauromorpha	(Benton 1983)
—	Lepidosauriformes	Gauthier et al. 1988
family	Kuehneosauridae
genus	Icarosaurus

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.

G. †Icarosaurus Colbert 1966

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†Icarosaurus siefkeri Colbert 1966

Diagnosis

Reference	Diagnosis
P. L. Robinson 1967	Ten or eleven pairs of dorsal ribs which can be folded back along the body; of these the more anterior have shafts whose length is at least ten times the width of the back of the skull, the shafts rapidly tapering from the proximal end, the length of the following pairs progressively diminishing pos- teriorly. Most of these ribs have a pronounced ventral curvature along the course of the shaft. Transverse processes of the dorsal vertebrae show an abrupt change in length and struc- ture at the beginning of the mid-dorsal series, i.e. as between the last sternal vertebra and the first mid-dorsal vertebra which bears an elongate rib.