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Asarotiformes

Asarotiformes

Synonymy list
YearName and author
1968Asarotiformes Schaeffer p. 3

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
Osteichthyes()
superclassActinopterygii(Cope 1887)
orderAsarotiformes
orderAsarotiformes

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.

Diagnosis
ReferenceDiagnosis
B. Schaeffer 1968An actinopterygian of problematical affinity, which differs from other taxa within the subclass Actinopterygii by the following combination of characters: Dermal skull composed of many small polygonal bones and several pairs of relatively large irregular ossifications that are extensively overlapped by smaller, radially arranged elements. Dermal bones ornamented with dentine tubercles. Braincase mostly cartilaginous. Parasphenoid broad anteriorly, deeply forked posteriorly, and with large tooth plate covered with minute closely spaced teeth. Ossified basipterygoid process absent. Notochord persistent; centra absent. Ribs ossified. Scales rhomboidal, lepidosteoid, ornamented with crenulated bony ridges.
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: Campanian or 83.60000 to 72.10000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1USA (Nebraska) Asarotus arcanus (193536)