Genus Chalaziosphaeridium

Species total:
10
Age range:
540 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Chalaziosphaeridium Nd Nd
Chalaziosphaeridium avitum Late Ordovician Late Ordovician
Chalaziosphaeridium delicatum Early Ordovician Early Ordovician
Chalaziosphaeridium dilatostellum Late Ordovician Late Ordovician
Chalaziosphaeridium estoniense Silurian Silurian
Chalaziosphaeridium granosum Early Ordovician Early Ordovician
Chalaziosphaeridium granulatum Late Ordovician Late Ordovician
Chalaziosphaeridium oligoprojectum Wenlockian Wenlockian
Chalaziosphaeridium sp Middle Cambrian Middle Cambrian
Chalaziosphaeridium tenuum Wenlockian Wenlockian