AN AMMONITE ASSEMBLAGE
AN AMMONITE ASSEMBLAGE

SOUTH DAKOTA, USA

Details
AN AMMONITE ASSEMBLAGE
South Dakota, USA
from the late Cretaceous (110-65.5 Mya), Discoscaphites conradi and Hoploscaphits nebrascensis showing good iridescence, other shelly material in matrix; housed in a late 19th century glass dome.
13½in. (35cm.) high in dome

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