Ptychagnostus seminula Whitehouse 1939 (trilobite)

Trilobita - Agnostida - Ptychagnostidae

Alternative combinations: Agnostus seminula, Onymagnostus seminula

Belongs to Ptychagnostus according to S. R. Westrop et al. 1996

Sister taxa: Ptychagnostus (Acidusus), Ptychagnostus (Ptychagnostus), Ptychagnostus acidusus, Ptychagnostus aculeatus, Ptychagnostus aksayensis, Ptychagnostus atavus, Ptychagnostus convexus, Ptychagnostus cuyanus, Ptychagnostus intermedius, Ptychagnostus karatauensis, Ptychagnostus leptus, Ptychagnostus punctuosus, Ptychagnostus sinicus, Ptychagnostus spinosus

Ecology: nektonic suspension feeder

Distribution:

• Marjumian of Canada (3: Newfoundland and Labrador collections)

• Cambrian of Canada (6: Newfoundland and Labrador), United States (4: Nevada, Utah)

Total: 13 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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