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Ptychagnostus michaeli ROBISON, 1984
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Products description
Here is a spiny agnostid of the rare species Ptychagnostus michaeli from the Marjum Formation. | |||
Location: | House Range, Utah, USA | ||
| Size: | about 4 mm long | ||
| Age: | Mid. Cambrian, Marjum Fm. (ca. 515 Mill. Jahre) (about 515 Mill. Jahre) | ||
Product no.: 3721