Hystrichosphaeridium

Genus Hystrichosphaeridium

Species total:
513

Age range:
4100 - 0 MA (obsolete dating)

IRMNG:
find

Name	From	To
Hystrichosphaeridium minus	Late Devonian	Early Senonian
Hystrichosphaeridium minuta	Ordovician	Silurian
Hystrichosphaeridium molodovense	Late Ordovician	Late Ordovician
Hystrichosphaeridium monacantha	Caradocian	Caradocian
Hystrichosphaeridium monacanthum	Ordovician	Late Ordovician
Hystrichosphaeridium monstruosum	Early Ordovician	Early Cenomanian
Hystrichosphaeridium multicalamus	Late Berriasian	Aptian
Hystrichosphaeridium multicornutum	Cenomanian	Cenomanian
Hystrichosphaeridium multifurcatum	Late Bathonian	Late Eocene
Hystrichosphaeridium multipilosum	Late Cambrian	Late Clintonian
Hystrichosphaeridium multispinosum	Silurian	Late Clintonian
Hystrichosphaeridium mutabile	Middle Cambrian	Middle Cambrian
Hystrichosphaeridium nebulosum	Late Couvinian	Stephanian A
Hystrichosphaeridium notoense	Middle Miocene	Middle Miocene
Hystrichosphaeridium nudatum	Ordovician	Ordovician
Hystrichosphaeridium octoaster	Late Devonian	Late Devonian
Hystrichosphaeridium octospinosum	Late Devonian	Late Devonian