Cryptogramma

Genus Cryptogramma

Species total:
20

Age range:
163.5 - 0 MA (obsolete dating)

IRMNG:
find

Name	From	To
Cryptogramma chetaensis	Valanginian	Valanginian
Cryptogramma acrostichoides	Pontian	Early Pleistocene
Cryptogramma	Neocomian	Pleistocene