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Agnostogonus
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Agnostida
Superfamily:
Agnostoidea
Family:
Uncertain
Formal Genus Name and Reference:
Agnostogonus Ö ІІК, 1967, p. 94
Type Species:
* A. incognitus, OD, holotype (ÖРІК, 1967, pl. 57, fig. 8), СРС 5846, AGSO, Canberra
Images
(Click to enlarge in a new window)
Fig. 238,1a,b. *A. incognitus, Upper Cambrian (Mindyallan, Glyptagnostus stolidotus Zone), Australia (Burke River area, western Queensland); a, holotype, cephalon, CPC 5846, ×8; b, paratype, pygidium, CPC 5847, ×8 (new).
Synonyms
Ptychagnostinae, Spinagnostidae
Geographic Distribution
Australia (Queensland), G. stolidotus Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Upper Cambrian
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
0
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Lower Upper Cambrian
Ending International Stage:
Jiangshanian
Fraction Up In Ending Stage:
0
Ending Date:
493.4
Description
Cephalon and pygidium effaced but retaining narrow borders, faint indications of basal lobes and furrows, posterior margin of glabella, axial furrows of pygidial anteroaxis, and axial nodes of each shield.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Agnostida
Superfamily:
Agnostoidea
Family:
Uncertain
Formal Genus Name and Reference:
Agnostogonus Ö ІІК, 1967, p. 94
Type Species:
* A. incognitus, OD, holotype (ÖРІК, 1967, pl. 57, fig. 8), СРС 5846, AGSO, Canberra
Images
(Click to enlarge in a new window)
Fig. 238,1a,b. *A. incognitus, Upper Cambrian (Mindyallan, Glyptagnostus stolidotus Zone), Australia (Burke River area, western Queensland); a, holotype, cephalon, CPC 5846, ×8; b, paratype, pygidium, CPC 5847, ×8 (new).
Synonyms
Ptychagnostinae, Spinagnostidae
Geographic Distribution
Australia (Queensland), G. stolidotus Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Upper Cambrian
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
0
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Lower Upper Cambrian
Ending International Stage:
Jiangshanian
Fraction Up In Ending Stage:
0
Ending Date:
493.4
Description
Cephalon and pygidium effaced but retaining narrow borders, faint indications of basal lobes and furrows, posterior margin of glabella, axial furrows of pygidial anteroaxis, and axial nodes of each shield.