Itagnostus
Temporal range: earliest Mayan to earliest Batyrbayan
Itagnostus interstrictus, until recently known as Peronopsis interstricta, from the Wheeler Shale, Utah
Scientific classification
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Itagnostus

Öpik, 1979
species[1]
  • I. elkedrensis (Etheridge, 1902) (type)
  • I. comis (Öpik, 1979)
  • I. doylei (Laurie, 2006)
  • I. gaspensis (Rasetti, 1948)
ssp. gaspensis
ssp. taitzuhoensis (Lu, 1957)
  • I. interstrictus (White, 1874) synonyms Euagnostus levifrons, Peronopsis interstricta
ssp. interstrictus
ssp. robustus (Deiss, 1939) synonym Agnostus robustus
  • I. krusei (Laurie, 2006)
  • I. oepiki (Laurie, 2004)
  • I. subhastatus (Geyer & Peel, 2017)
  • I. walleyae (Laurie, 2006)

Itagnostus is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America.[1]

Distribution

Schematic showing the relationship between Itagnostus (light green) with other Peronopsid genera (darker green). The descending genus Euagnostus (Dorypygidae) is shown in blue-purple

References

  1. ^ a b c Naimark, E.B. (2012). "Hundred species of the Genus Peronopsis Hawle et Corda, 1847". Paleontological Journal. 46 (9): 945–1057. Bibcode:2012PalJ...46..945N. doi:10.1134/S0031030112090018. S2CID 85130465.