Genus Ammonidium

Species total:
52
Age range:
570 - 335 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Ammonidium listeri Early Gothlandian Early Telychian
Ammonidium lewisii Middle Devonian Middle Devonian
Ammonidium juliae Early Tournaisian Early Tournaisian
Ammonidium iowaensis Late Givetian Late Givetian
Ammonidium inornatum Early Frasnian Early Frasnian
Ammonidium hydraferum Frasnian Frasnian
Ammonidium hamatum Late Devonian Late Famennian
Ammonidium grosjeanii Early Cambrian Famennian
Ammonidium garrasinoi Early Devonian Early Frasnian
Ammonidium furtivum Early Arenigian Early Llandeilian
Ammonidium exoticum Arenigian Llanvirnian
Ammonidium encantador Fronian Wenlockian
Ammonidium cornuatum Gedinnian Gedinnian
Ammonidium cladum Aeronian Middle Siegenian
Ammonidium ballistum Early Arenigian Middle Arenigian
Ammonidium alloiteauii Arenigian Middle Tournaisian
Ammonidium aduncum Tremadocian Ashgillian