Genus Downiesphaeridium

Species total:
11
Age range:
161.2 - 40.25 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Downiesphaeridium Aptian Maestrichtian
Downiesphaeridium aciculare Late Hauterivian Early Campanian
Downiesphaeridium armatum Cenomanian Early Campanian
Downiesphaeridium bergmannii Late Danian Late Danian
Downiesphaeridium bulbum Eocene Eocene
Downiesphaeridium flexuosum Vraconian Vraconian
Downiesphaeridium iaculigerum Middle Kimmeridgian Middle Kimmeridgian
Downiesphaeridium multispinosum Early Albian Late Coniacian
Downiesphaeridium polyacanthum Late Callovian Early Ryazanian
Downiesphaeridium sp Late Hauterivian Early Maestrichtian
Downiesphaeridium spinulastrum Aptian Middle Eocene