Hystrichosphaeridium

Genus Hystrichosphaeridium

Species total:
513

Age range:
4100 - 0 MA (obsolete dating)

IRMNG:
find

Name	From	To
Hystrichosphaeridium placacanthum	Valanginian	Pleistocene
Hystrichosphaeridium plicatum	Middle Oligocene	Middle Oligocene
Hystrichosphaeridium podolicum	Late Ordovician	Late Ordovician
Hystrichosphaeridium polonicum	Oxfordian	Kimmeridgian
Hystrichosphaeridium polychonion	Late Berriasian	Valanginian
Hystrichosphaeridium polygonale	Ordovician	Ludlovian
Hystrichosphaeridium polyplasium	Miocene	Late Miocene
Hystrichosphaeridium polyradiatum	Early Ordovician	Middle Ordovician
Hystrichosphaeridium polytrichum	Tarannon	Oligocene
Hystrichosphaeridium proprium	Late Campanian	Late Maestrichtian
Hystrichosphaeridium protellipticum	Albian	Albian
Hystrichosphaeridium pseudhystrichodinium	Cretaceous	Eocene
Hystrichosphaeridium pseudorecurvatum	Early Cretaceous	Pleistocene
Hystrichosphaeridium pterophorum	Turonian	Santonian
Hystrichosphaeridium pulcherrimum	Late Jurassic	Late Campanian
Hystrichosphaeridium pumile	Bajocian	Bathonian
Hystrichosphaeridium quadrangulatum	Early Clintonian	Early Clintonian