Archaeagnostus

Archaeagnostus; Temporal range: terminal Toyonian to early Amgaian (Nephrolenellus multinodus-zone, Ovatoryctocara granulata-zone, earliest Kounamkites-zone) PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Agnostida
Suborder:	Agnostina
Superfamily:	Agnostoidea
Family:	Peronopsidae
Genus:	Archaeagnostus; Kobayashi, 1939
species
	A. primigeneus Kobayashi, 1939(Type); A. evansi Rasetti and Theokritoff, 1967; A. majiangensis Lu, 1974;

Archaeagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from the terminal Toyonian to early Amgaian. Species belonging to this genus have been found in Eastern North America, Newfoundland, the Henson Gletscher Formation in Greenland, the Nekekit and Molodo Rivers in Eastern Siberia, and in Guizhou, China.[1]

Schematic showing the relationship between Archaeagnostus (light green), other Peronopsid genera (darker green) and other families (other colors). Based on E. B. Naimark (2012). Hundred species of the genus Peronopsis Hawle et Corda, 1847. Paleontological Journal 46(9):945-1057

References

Naimark, E.B. (2012). "Hundred species of the Genus Peronopsis Hawle et Corda, 1847". Paleontological Journal. 46 (9): 945–1057. doi:10.1134/S0031030112090018.

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[Naimark-1] Naimark, E.B. (2012). "Hundred species of the Genus Peronopsis Hawle et Corda, 1847". Paleontological Journal. 46 (9): 945–1057. doi:10.1134/S0031030112090018.