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Genus Archaeohystrichosphaeridium

Species total:
126
Age range:
4100 - 141 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Archaeohystrichosphaeridium diploporum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium divaricans Late Cambrian Late Cambrian
Archaeohystrichosphaeridium dorofeevii Cambrian Middle Cambrian
Archaeohystrichosphaeridium duplicativum Late Proterozoic Early Ordovician
Archaeohystrichosphaeridium edentatum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium eisenacki Early Ordovician Early Ordovician
Archaeohystrichosphaeridium ellipsoideum Early Ordovician Early Ordovician
Archaeohystrichosphaeridium extremum Late Cambrian Late Cambrian
Archaeohystrichosphaeridium flexile Early Cambrian Early Cambrian
Archaeohystrichosphaeridium furcatum Early Paleozoic Early Paleozoic
Archaeohystrichosphaeridium genuinum Sinian Sinian
Archaeohystrichosphaeridium girofleum Middle Cambrian Late Cambrian
Archaeohystrichosphaeridium gladkovae Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium glebosum Late Cambrian Late Cambrian
Archaeohystrichosphaeridium globosum Early Cambrian Early Cambrian
Archaeohystrichosphaeridium gracilis Early Devonian Early Devonian
Archaeohystrichosphaeridium ianischewskyi Late Precambrian Arenigian