20399 - Great Huge 3.11 Inch Polished Goniatites Devonian Cephalopod Mammites nodosoides upper and lower teeth interdigitate

upper and lower teeth interdigitate tightly in anterior region of the snout

based on scratch hardness comparison

such as the distinctive chisel shape of this sauropod

It is a piece with a size that exceeds that of the average for its species

1969) the most common form with antennas

20399 - Great Huge 3.11 Inch Polished Goniatites Devonian Cephalopod Mammites nodosoides upper and lower teeth interdigitateImpressive example of this Devonian cephalopod. Huge specimen. It has been lightly polished to appreciate in detail its structures. The characteristic lines of suture of this cephalopod of the Paleozoic can be perfectly observed. Nice specimen.