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Genus Archaeohystrichosphaeridium

Species total:
126
Age range:
4100 - 141 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Archaeohystrichosphaeridium zalesskyi Late Precambrian Middle Emsian
Archaeohystrichosphaeridium waltzii Late Cambrian Late Cambrian
Archaeohystrichosphaeridium vologdense Middle Riphean Early Cambrian
Archaeohystrichosphaeridium vastum Early Cambrian Early Cambrian
Archaeohystrichosphaeridium unguisum Late Cambrian Late Cambrian
Archaeohystrichosphaeridium truncatum Late Proterozoic Cambrian
Archaeohystrichosphaeridium triviale Middle Cambrian Arenigian
Archaeohystrichosphaeridium triplicatum Late Cambrian Late Cambrian
Archaeohystrichosphaeridium tribulosum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium testudine Sinian Sinian
Archaeohystrichosphaeridium tener Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium subreticulatum Late Proterozoic Cambrian
Archaeohystrichosphaeridium strictum Cambrian Cambrian
Archaeohystrichosphaeridium striatum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium stipiforme Early Cambrian Early Cambrian
Archaeohystrichosphaeridium sp.A Tremadocian Early Arenigian
Archaeohystrichosphaeridium sp.6 Cambrian Cambrian