Priscotheca |
Priscotheca raia
|
Algeria |
Tremadocian |
|
Baltisphaeridium |
Baltisphaeridium longispinosum
|
Baltic |
Silurian |
|
Dactylofusa |
Dactylofusa maranhensis
|
Brazil |
Silurian |
|
Leiofusa |
Leiofusa striata
|
Brazil |
Silurian |
|
Veryhachium |
Veryhachium sp. Brit.,1967
sp. nov. |
Brazil |
Devonian |
|
Maranhites |
Maranhites mosesii
|
Brazil |
Devonian |
|
Triangulina |
Triangulina alargada
|
Brazil |
Early Devonian |
|
Veliferites |
Veliferites tenuimarginatus
|
Brazil |
Early Devonian |
|
Evittia |
Evittia sommeri
|
Brazil |
Early Devonian |
|
Leiofusa |
Leiofusa brasiliensis
|
Brazil |
Early Devonian |
|
Duvernaysphaera |
Duvernaysphaera radiata
|
Brazil |
Middle Devonian |
|
Polyedryxium |
Polyedryxium sp
|
Brazil |
Middle Devonian |
|
Pseudolunulidia |
Pseudolunulidia imperatrizensis
|
Brazil |
Middle Devonian |
|
Pterospermopsis |
Pterospermopsis brasiliensis
|
Brazil |
Late Devonian |
|
Disphaeria |
Disphaeria macropyla
|
Canada |
Cretaceous |
|
Diplofusa |
Diplofusa gearlensis
|
Canada |
Cretaceous |
|
Cirrifera |
Cirrifera unilateralis
|
Canada |
Cretaceous |
|