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Joffrichthys

Actinopteri -

Taxonomy
Joffrichthys was named by Li and Wilson (1996). It is not extant. Its type is Joffrichthys symmetropterus.

It was assigned to Heterotidinae by Newbrey and Bozek (2000); and to Osteoglossomorpha by Murray et al. (2018).

Synonymy list
YearName and author
1996Joffrichthys Li and Wilson
2000Joffrichthys Newbrey and Bozek p. 13
2018Joffrichthys Murray et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
superclassActinopterygii(Cope 1887)
RankNameAuthor
classActinopteri()
subclassNeopterygii(Regan 1923)
Teleosteomorpha
Teleostei(Müller 1846)
Osteoglossocephalai
Osteoglossocephala
superorderOsteoglossomorpha
genusJoffrichthysLi and Wilson 1996

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
A. M. Murray et al. 2018Deep-bodied osteoglossomorph fishes with six hypurals, no epurals, one distinct uroneural, six pelvic fin rays, kidney-shaped opercle ornamented laterally with striations radiating from area of facet for articulation with hyomandibula,
and large dorsal and anal fins positioned posteriorly. Differs from Osteoglossidae and Notopteridae by having 18 principal rays (16 branched) in the caudal fin; from Notopteridae by lacking a long anal fin confluent with the caudal fin, and from Mormyridae by lacking the rounded snout, elongate jaw bones and other specializations of those families; from Hiodontiformes by lacking the posteriorly recurved spine on the opercle; and from basal members of the superorder by having the supraorbital sensory canal
ending in the frontal not the parietal (which is similar to the more derived Osteoglossidae), and having the dorsal and ventral arms of the post-temporal equal in length (this last feature is probable, but not clearly visible in the type species).
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: base of the Clarkforkian to the top of the Paleocene or 56.80000 to 56.00000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Tiffanian - Paleocene61.7 - 56.0Canada (Alberta) Osteoglossomorpha indet. (22732)
Late/Upper Paleocene58.7 - 55.8Canada (Alberta) J. tanyourus (191920)
Clarkforkian56.8 - 55.8USA (North Dakota) J. triangulpterus (21372)