Genus Perisaccus

Species total:
63
Age range:
1600 - 82 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Perisaccus optivus Westphalian A Westphalian A
Perisaccus orbicularis Visean Westphalian D
Perisaccus ovalis Cambrian Cambrian
Perisaccus pararimosus Asselian Asselian
Perisaccus paratumisus Late Carboniferous Late Carboniferous
Perisaccus pfalzensis Late Carboniferous Late Carboniferous
Perisaccus plicatus Namurian A Namurian A
Perisaccus praetextus Asselian Asselian
Perisaccus primigenus Riphean Permian
Perisaccus pumicosus Carboniferous Asselian
Perisaccus pylopterus Early Visean Early Visean
Perisaccus quaesitus Westphalian A Westphalian A
Perisaccus radiatus Namurian A Namurian A
Perisaccus reticularis Late Frasnian Late Frasnian
Perisaccus reticulatus Caradocian Caradocian
Perisaccus rimosus Late Carboniferous Asselian
Perisaccus rotundus Early Visean Early Visean