Hystrichosphaeridium

Genus Hystrichosphaeridium

Species total:
513

Age range:
4100 - 0 MA (obsolete dating)

IRMNG:
find

Name	From	To
Hystrichosphaeridium digitatum	Tremadocian	Late Eocene
Hystrichosphaeridium ordovicum	Ordovician	Ordovician
Hystrichosphaeridium balticum	Early Ordovician	Late Ordovician
Hystrichosphaeridium minuta	Ordovician	Silurian
Hystrichosphaeridium aquitanicum	Tremadocian	Albian
Hystrichosphaeridium trispinosum	Ordovician	Mississippian
Hystrichosphaeridium vitile	Early Ordovician	Early Ordovician
Hystrichosphaeridium sp. Down.,1958	Tremadocian	Tremadocian
Hystrichosphaeridium corollatum	Ordovician	Ordovician
Hystrichosphaeridium rigens	Early Ordovician	Early Ordovician
Hystrichosphaeridium apiculatum	Ordovician	Ordovician
Hystrichosphaeridium cristatum	Tremadocian	Tremadocian
Hystrichosphaeridium scapigerum	Early Ordovician	Early Ordovician
Hystrichosphaeridium maximum	Early Ordovician	Early Ordovician
Hystrichosphaeridium polygonale	Ordovician	Ludlovian
Hystrichosphaeridium inconspicuum	Ordovician	Ordovician
Hystrichosphaeridium quadriradiatum	Early Ordovician	Early Ordovician