Striatites |
Striatites richteri
|
Alaska |
Permian |
Triassic |
Suessia |
Suessia sp
|
Alaska |
Rhaetian |
|
Suessia |
Suessia swabiana
|
Alaska |
Carnian |
Rhaetian |
Surculosphaeridium |
Surculosphaeridium longifurcatum
|
Alaska |
Cenomanian |
|
Sverdrupiella |
Sverdrupiella manicata
|
Alaska |
Carnian |
Norian |
Sverdrupiella |
Sverdrupiella sabinensis
|
Alaska |
Carnian |
Norian |
Sverdrupiella |
Sverdrupiella usitata
|
Alaska |
Carnian |
Albian |
Sverdrupiella |
Sverdrupiella usitata
|
Alaska |
Neocomian |
Albian |
Syncolpites |
Syncolpites sp
|
Alaska |
Campanian |
|
Systematophora |
Systematophora sp.B
sp. nov. |
Alaska |
Kimmeridgian |
Tithonian |
Taeniaesporites |
Taeniaesporites sp
|
Alaska |
Permian |
Triassic |
Tanyosphaeridium |
Tanyosphaeridium boletus
|
Alaska |
Neocomian |
|
Tanyosphaeridium |
Tanyosphaeridium variecalamum
|
Alaska |
Oxfordian |
Neocomian |
Tasmanaceae |
Tasmanaceae
|
Alaska |
Late Triassic |
Callovian |
Taxodiaceae |
Taxodiaceae sp
|
Alaska |
Neocomian |
Early Tertiary |
Tenua |
Tenua anaphrissa
|
Alaska |
Neocomian |
|
Tenua |
Tenua hystrix
|
Alaska |
Neocomian |
Albian |