Hystrichosphaeridium

Genus Hystrichosphaeridium

Species total:
513

Age range:
4100 - 0 MA (obsolete dating)

IRMNG:
find

Name	From	To
Hystrichosphaeridium picorricum	Late Ordovician	Emsian
Hystrichosphaeridium communis	Ordovician	Silurian
Hystrichosphaeridium meson	Late Llandoverian	Late Ludlovian
Hystrichosphaeridium laevigatum	Wenlockian	Ludlovian
Hystrichosphaeridium minuta	Ordovician	Silurian
Hystrichosphaeridium polygonale	Ordovician	Ludlovian
Hystrichosphaeridium erraticum	Silurian	Late Ludlovian
Hystrichosphaeridium sp. Eise.,1951	Late Cambrian	Middle Gothlandian
Hystrichosphaeridium brevifurcatum	Llanvirnian	Early Homerian
Hystrichosphaeridium multispinosum	Silurian	Late Clintonian
Hystrichosphaeridium group b	Middle Clintonian	Late Clintonian
Hystrichosphaeridium staurasteroides	Gothlandian	Late Clintonian
Hystrichosphaeridium pentaspinosum	Middle Clintonian	Late Clintonian
Hystrichosphaeridium multipilosum	Late Cambrian	Late Clintonian
Hystrichosphaeridium amplum	Middle Clintonian	Late Clintonian
Hystrichosphaeridium calvum	Middle Clintonian	Late Clintonian
Hystrichosphaeridium microspinosum	Silurian	Late Llandoverian