Astrocysta |
Astrocysta ampla
|
Canada(Alberta) |
Campanian |
|
Astrocysta |
Astrocysta ampla
|
Canada(Manitoba) |
Campanian |
|
Astrocysta |
Astrocysta ampla
|
Texas |
Campanian |
|
Astrocysta |
Astrocysta ampla
|
Wyoming |
Campanian |
|
Astrocysta |
Astrocysta cretacea
|
Canada(Saskatchewan) |
Campanian |
|
Astrocysta |
Astrocysta cretacea
|
Canada(Alberta) |
Campanian |
|
Astrocysta |
Astrocysta cretacea
|
Canada(Manitoba) |
Campanian |
|
Astrocysta |
Astrocysta cretacea
|
Texas |
Campanian |
|
Astrocysta |
Astrocysta cretacea
|
Wyoming |
Campanian |
|
Astrocysta |
Astrocysta manumcooksonii
|
Canada(Saskatchewan) |
Campanian |
|
Astrocysta |
Astrocysta manumcooksonii
|
Canada(Alberta) |
Campanian |
|
Astrocysta |
Astrocysta manumcooksonii
|
Canada(Manitoba) |
Campanian |
|
Astrocysta |
Astrocysta manumcooksonii
|
Texas |
Campanian |
|
Astrocysta |
Astrocysta manumcooksonii
|
Wyoming |
Campanian |
|
Australiella |
Australiella cooksoniae
|
Canada(Saskatchewan) |
Campanian |
|
Australiella |
Australiella cooksoniae
|
Canada(Manitoba) |
Campanian |
|
Australiella |
Australiella cooksoniae
|
Wyoming |
Campanian |
|