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Class:
Astrorhizata
Subclass:
Astrorhizana
Order:
Astrorhizida
Family:
Ammovolummidae
Serpenulina
Chernykh, 1967
Serpenulina sphaerica
(Chernykh, 1967)
identified by scientist
Silurian
Ural Mountains
Serpenulina uralica
Chernykh, 1967
identified by scientist
Silurian
Ural Mountains
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