Genus Forma

Species total:
18
Age range:
374 - 117 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Forma Nd Nd
Forma A Miocene Miocene
Forma B Miocene Miocene
Forma c Eocene Eocene
Forma reticulata Late Westphalian D Early Stephanian A
Forma sp Carboniferous Carboniferous
Forma sp H Anan.,1974 Emsian Frasnian
Forma sp I Emsian Frasnian
Forma sp.1 Cenomanian Cenomanian
Forma sp.2 Cenomanian Cenomanian
Forma sp.3 Cenomanian Cenomanian
Forma sp.4 Cenomanian Cenomanian
Forma sp.5 Cenomanian Cenomanian
Forma sp.6 Cenomanian Cenomanian
Forma sp.7 Cenomanian Cenomanian
Forma sp.8 Cenomanian Cenomanian
Forma sp.A Valanginian Hauterivian