Duvernaysphaera |
Duvernaysphaera tenuicingulata
|
Nd |
Late Devonian |
|
Duvernaysphaera |
Duvernaysphaera tenuimarginata
|
Nd |
Early Devonian |
|
Duvernaysphaera |
Duvernaysphaera tessella
|
Nd |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera wilsonii
|
Nd |
Devonian |
|
Echinum |
Echinum
|
Nd |
Nd |
|
Echinum |
Echinum gilsonii
|
Nd |
Holocene |
|
Ecmelostoiba |
Ecmelostoiba
|
Nd |
Nd |
|
Ecmelostoiba |
Ecmelostoiba asymmetrica
|
Nd |
Late Devonian |
|
Ecmelostoiba |
Ecmelostoiba leptoderma
|
Nd |
Late Devonian |
|
Ecmelostoiba |
Ecmelostoiba symmetrica
|
Nd |
Nd |
|
Ecthymabrachion |
Ecthymabrachion
|
Nd |
Nd |
|
Ecthymabrachion |
Ecthymabrachion camptus
|
Nd |
Late Devonian |
|
Ecthymapalla |
Ecthymapalla
|
Nd |
Nd |
|
Ecthymapalla |
Ecthymapalla echinata
|
Nd |
Late Gedinnian |
|
Ecthymapalla |
Ecthymapalla retusa
|
Nd |
Late Gedinnian |
|
Ectypolopus |
Ectypolopus
|
Nd |
Nd |
|
Ectypolopus |
Ectypolopus elimatus
|
Nd |
Late Gedinnian |
|