†Onymagnostus stenorrhachis Grönwall 1902 (artiopod)
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Artiopoda - Agnostida - Ptychagnostidae
Alternative combinations: Agnostus stenorrhachis, Ptychagnostus (Triplagnostus) stenorrhachis, Ptychagnostus stenorrhachis
Belongs to Onymagnostus according to G. K. Ergaliev and F. G. Ergaliev 2008
See also Westergård 1946
Sister taxa: Onymagnostus convexus, Onymagnostus cuneiformis, Onymagnostus hybridus, Onymagnostus mundus, Onymagnostus ovaliformis, Onymagnostus rotundatus, Onymagnostus semiermis
Ecology: slow-moving epifaunal detritivore
Distribution:
• Cambrian of Kazakhstan (2 collections), Sweden (1)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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