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Ptychagnostus michaeli ROBISON, 1984
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Products description
A nice and detailed preserved, extremly spiny Agnostid from the Marjum Fm.. | |||
Location: | House Range, Utah, USA | ||
| Size trilobite: | about 6 mm long | ||
| Age: | Middle Cambrian, Marjum Fm., (about. 518 Mill. Mill. y.o.) | ||
Product no.: 231-1