Ambitisporites |
Ambitisporites avitus
|
Argentina(San Juan) |
Early Ludlovian |
|
Ammonidium |
Ammonidium rigidum
|
Argentina(San Juan) |
Early Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium aniae
|
Argentina(San Juan) |
Early Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium cariniosum
|
Argentina(San Juan) |
Early Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium monterrosae
|
Argentina(San Juan) |
Early Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium monterrosae
|
Pennsylvania |
Early Gothlandian |
|
Baltisphaeridium |
Baltisphaeridium pilar
|
Argentina(San Juan) |
Early Ludlovian |
|
Cordobesia |
Cordobesia oriental
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera franjada
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera heloderma
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera leonensis
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera pentaster
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera prismatica
|
Argentina(San Juan) |
Early Ludlovian |
|
Cymbosphaeridium |
Cymbosphaeridium cariniosum
|
Nd |
Nd |
|
Cymbosphaeridium |
Cymbosphaeridium pilar
|
Nd |
Nd |
|
Dactylofusa |
Dactylofusa cucurbita
|
Argentina(San Juan) |
Early Ludlovian |
|
Dactylofusa |
Dactylofusa cucurbita
|
Algeria |
Caradocian |
Ashgillian |