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3.9" Fossil Ammonite Cluster - Posidonia Shale, Germany
This is a 3.9" wide cluster of Dactylioceras and Harpoceras ammonite fossils from the Posidonia Shale of Germany. Ammonites from this location have been compressed and are preserved on a black slate in a partially pyritized state. It comes with an acrylic display stand.
Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
SPECIES
Dactylioceras sp. & Harpoceras sp.
LOCATION
Holzmaden, Germany
FORMATION
Posidonia Shale
SIZE
Rock 3.9 x 3.9", Largest Ammonite 1.6"
CATEGORY
SUB CATEGORY
ITEM
#305723
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