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Genus Archaeohystrichosphaeridium

Species total:
126
Age range:
4100 - 141 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Archaeohystrichosphaeridium cuspidatum Middle Cambrian Early Arenigian
Archaeohystrichosphaeridium accomodatum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium coroniforme Middle Cambrian Late Cambrian
Archaeohystrichosphaeridium striatum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium semireticulatum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium patentissimum Middle Cambrian Llanvirnian
Archaeohystrichosphaeridium ovale Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium capillatum Middle Cambrian Llanvirnian
Archaeohystrichosphaeridium laxum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium tener Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium recticornum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium parvum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium diploporum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium simplex Middle Cambrian Tremadocian
Archaeohystrichosphaeridium tribulosum Middle Cambrian Middle Cambrian
Archaeohystrichosphaeridium pentagonale Middle Cambrian Late Cambrian
Archaeohystrichosphaeridium triviale Middle Cambrian Arenigian