PBDB Taxon

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

Isospondyli

Osteichthyes - Isospondyli

Taxonomy

Isospondyli was named by Cope (1887).

It was assigned to Actinopterygia by Cope (1887); to Actinopterygii by Woodward (1895); to Actinopteri by Hay (1902); to Teleostei by Jordan (1963); to Teleostei by Rapp (1946), Casier (1965); and to Actinopterygii by Casier (1966).

Subtaxa

Notopteroidei, Pholidophoroidei, Proballostomus, Salmonoidea, Sauropsidae, Scyphophori, Stomiatioidei

Synonymy list

Year	Name and author
1887	Isospondyli Cope p. 1018
1895	Isospondyli Woodward p. 446
1902	Isospondyli Hay p. 383
1946	Isospondyli Rapp p. 512
1963	Isospondyli Jordan p. 616
1965	Isospondyli Casier p. 13
1966	Isospondyli Casier p. 117

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata

Rank	Name	Author
superclass	Gnathostomata
class	Osteichthyes
superclass	Actinopterygii	()
order	Isospondyli
order	Isospondyli

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.

Or. †Isospondyli Cope 1887

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G. †Proballostomus Cope 1891

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†Proballostomus longulus Cope 1891

Subor. Salmonoidea

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Fm. †Cyclolepidae David 1946

G. †Cyclolepoides David 1946

†Cyclolepoides tuberculatus David 1946

Invalid names: Aplochitonidae [empty], Microstomidae [empty], Thymallidae [empty]

Invalid names: Notopteroidei [empty], Pholidophoroidei [empty], Sauropsidae Cope 1877 [empty], Scyphophori [empty], Stomiatioidei [empty]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

marinesubp

Locomotion:

actively mobilec

Created:

2004-08-17 14:52:40

Modified:

2009-07-20 23:50:42

Source: c = class, subp = subphylum

Reference: Carroll 1988

Age range

Maximum range based only on fossils: base of the Middle Turonian to the top of the Late/Upper Eocene or 93.90000 to 33.90000 Ma
Minimum age of oldest fossil (stem group age): 89.8 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Turonian - Late/Upper Turonian	93.9 - 89.8	Uzbekistan (Navoi)	Pholidophoroidei indet. (58165)
Middle Eocene - Late/Upper Eocene	48.07 - 33.9	USA (California)	Cyclolepoides tuberculatus (191006 191008 191009 191014 191016)