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Hypagnostus brevifrons

Agnostida - Spinagnostidae

Taxonomy
Agnostus brevifrons was named by Angelin (1851). It is not extant.

It was recombined as Hypagnostus brevifrons by Peng and Robison (2000).

Sister species lacking formal opinion data
H. durus, H. hippalus, H. inaequalis, H. lens, H. subparallelus

Synonyms
Synonymy list
YearName and author
1851Agnostus brevifrons Angelin
1960Hypagnostus kendectasicus Kryskov
1977Hypagnostus brachydolonus Zhou and Yang
1993Acadagnostus transversus Yang et al.
1993Hypagnostus parabrevifrons Yang et al.
2000Hypagnostus brevifrons Peng and Robison

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familySpinagnostidaeHowell 1935
subfamilySpinagnostinaeHowell 1935
genusHypagnostusJaeckel 1909
speciesbrevifrons(Angelin 1851)

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.

†Hypagnostus brevifrons Angelin 1851
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Invalid names: Acadagnostus transversus Yang et al. 1993 [synonym], Hypagnostus brachydolonus Zhou and Yang 1977 [synonym], Hypagnostus kendectasicus Kryskov 1960 [synonym], Hypagnostus parabrevifrons Yang et al. 1993 [synonym]
Diagnosis
No diagnoses are available