''Euaspidoceras perarmatum'' is an extinct ammonoid cephalopod species that lived during the

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ...

. Fossils of ''Euaspidoceras perarmatum'' may be found in the upper Jurassic, Oxfordian stage of France, Germany, Russia and Saudi Arabia, around 154 to 146 million years ago.MNHN
/ref>

Description

''Euaspidoceras perarmatum'' has a shell reaching up to of diameter.
/ref>

References

Jurassic ammonites Aspidoceratidae {{Ammonitina-stub