Genus Hystrichosphaeridium

Species total:
513
Age range:
4100 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Hystrichosphaeridium tubiferum Late Jurassic Recent
Hystrichosphaeridium tubulatum Jackson Jackson
Hystrichosphaeridium type 1 Tortonian Tortonian
Hystrichosphaeridium type 10 Oligocene Oligocene
Hystrichosphaeridium type 11 Oligocene Oligocene
Hystrichosphaeridium type 2 Tortonian Tortonian
Hystrichosphaeridium type 3 Tortonian Tortonian
Hystrichosphaeridium type 4 Oligocene Oligocene
Hystrichosphaeridium type 411 Late Albian Early Cenomanian
Hystrichosphaeridium type 418 Barremian Barremian
Hystrichosphaeridium type 419 Berriasian Valanginian
Hystrichosphaeridium type 459 Late Albian Early Cenomanian
Hystrichosphaeridium type 462 Hauterivian Barremian
Hystrichosphaeridium type 5 Oligocene Oligocene
Hystrichosphaeridium type 6 Oligocene Oligocene
Hystrichosphaeridium ukaiense Middle Miocene Middle Miocene
Hystrichosphaeridium unictispina Middle Cretaceous Middle Cretaceous