Trunculumarium |
Trunculumarium revinium
|
USSR(Russian Platform) |
Late Cambrian |
|
Trunculumarium |
Trunculumarium revinium
|
Canada(Newfoundland) |
Late Cambrian |
|
Tunisphaeridium |
Tunisphaeridium caudatum
|
Nd |
Llandoverian |
Homerian |
Tunisphaeridium |
Tunisphaeridium parvum
|
Worldwide |
Aeronian |
Early Gorstian |
Tyligmasoma |
Tyligmasoma alargada
|
Nd |
Nd |
|
Tylotopalla |
Tylotopalla caelamenicutis
|
Worldwide |
Telychian |
Sheinwoodian |
Tylotopalla |
Tylotopalla maraca
|
Worldwide |
Gorstian |
Early Ludfordian |
Tylotopalla |
Tylotopalla pyramidalis
|
Worldwide |
Early Gorstian |
|
Tylotopalla |
Tylotopalla robustispinosa
|
Worldwide |
Late Rhuddanian |
Homerian |
Tylotopalla |
Tylotopalla wenlockia
|
Nd |
Nd |
|
Tyrannus |
Tyrannus giganteus
|
Worldwide |
Late Telychian |
Gorstian |
Umbellasphaeridium |
Umbellasphaeridium deflandrei
|
Nd |
Frasnian |
Famennian |
Umbellasphaeridium |
Umbellasphaeridium saharicum
|
Nd |
Eifelian |
Famennian |
Unellium |
Unellium
|
Nd |
Nd |
|
Unellium |
Unellium ampullium
|
Nd |
Nd |
|
Unellium |
Unellium piriforme
|
Nd |
Frasnian |
|
Unellium |
Unellium piriforme
|
Nd |
Frasnian |
Famennian |