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Peratagnostus
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Agnostida
Superfamily:
Agnostoidea
Family:
Spinagnostidae
Formal Genus Name and Reference:
Peratagnostus ÖRІK, 1967, p. 86
Type Species:
* P. nobilis, OD, holotype (ÖРІК, 1967, pl. 52, fig. 11a-c), СРС 5787, AGSO, Canberra
Images
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Fig. 226,3a,b. *P. nobilis, Upper Cambrian (Idamean, Erixanium sentum Zone), Australia (Burke River Structural Belt, western Queensland); a, paratype, cephalon, CPC 5792, ×8; b, holotype, pygidium, CPC 5787, × 8 (new).
Synonyms
Geographic Distribution
Australia (Queensland), E. sentum to R. apsis or W. iota Zones; South Korea, Eochuangia Zone; Kazakhstan, G. stolidotus to H. longiformis Zones, (Lesser Karatau Mountains), G. reticulatus Zone; Russia (Yakutia), Irvingella or C. felix Zone; Canada (Northwest Territories, Newfoundland), Olenaspella evansi to Irvingella major Zones; USA (Nevada), Dunderbergia Zone, (Alaska), Franconian; China (Zhejiang), P. fenghwangensis to P. clavatus or S. kiangshanensis Zones, (Hunan, Guizhou), zone uncertain.
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
0
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Upper Cambrian
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
0
Ending Date:
486.85
Description
Almost completely effaced, nonscrobiculate or weakly scrobiculate, cephalic (Queensland), E. sentum to R. apsis or W. iota Zones, South Korea, Eochuangia Zone, Kazakhstan, G. stolidotus to H. longiformis Zones, (Lesser Karatau Mountains), G. reticulatus Zone, Russia (Yakutia), Irvingella or C. felix Zone, Canada (Northwest Territories, Newfoundland), Olenaspella evansi to Irvingella major Zones, USA (Nevada), Dunderbergia Zone, (Alaska), Franconian, China (Zhejiang), P. fenghwangensis to $P$. clavatus or $S$. kiangshanensis Zones, (Hunan, Guizhou), zone uncertain.