A fossil shell of the
Middle-
Late Jurassic
perisphinctid ammonoid
Perisphinctes on exhibit at the
Museum für Naturkunde in
Berlin,
Germany.
Photo credit:
Masur
A fossil shell of the
Middle-
Late Jurassic
perisphinctid ammonoid
Perisphinctes on exhibit at the
Museum für Naturkunde in
Berlin,
Germany.
Photo credit:
Masur