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Genus Hystrichosphaeridium

Species total:
513
Age range:
4100 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Hystrichosphaeridium type 10 Oligocene Oligocene
Hystrichosphaeridium gdovia Early Ordovician Early Ordovician
Hystrichosphaeridium unictispina Middle Cretaceous Middle Cretaceous
Hystrichosphaeridium sp.27 Hauterivian Hauterivian
Hystrichosphaeridium monacantha Caradocian Caradocian
Hystrichosphaeridium anomale Early Devonian Early Devonian
Hystrichosphaeridium marginatum Early Ordovician Early Ordovician
Hystrichosphaeridium triplicativum Early Ordovician Early Ordovician
Hystrichosphaeridium spiceum Late Devonian Late Devonian
Hystrichosphaeridium octospinosum Late Devonian Late Devonian
Hystrichosphaeridium hexaster Late Devonian Late Devonian
Hystrichosphaeridium sp.AE Early Cretaceous Early Cretaceous
Hystrichosphaeridium conspicuum Late Cambrian Late Cambrian
Hystrichosphaeridium sp. Goch.,1952 Nd Nd
Hystrichosphaeridium magnarmatum Albian Albian
Hystrichosphaeridium microsaetosum Late Devonian Late Devonian
Hystrichosphaeridium aculeatum Ordovician Ordovician