Acanthotriletes |
Acanthotriletes sp
|
Wyoming |
Santonian |
|
Aequitriradites |
Aequitriradites sp
|
Wyoming |
Santonian |
|
Alisporites |
Alisporites sp
|
Wyoming |
Late Campanian |
|
Alnipollenites |
Alnipollenites verus
|
Wyoming |
Santonian |
|
Alnus |
Alnus trina
|
Wyoming |
Early Eocene |
|
Alnus |
Alnus trina
|
Wyoming |
Paleocene |
|
Alsophilidites |
Alsophilidites kerguelensis
|
Wyoming |
Cretaceous |
Early Paleocene |
Anemia |
Anemia sp
|
Wyoming |
Cretaceous |
|
Appendicisporites |
Appendicisporites dakotensis
|
Wyoming |
Late Campanian |
|
Appendicisporites |
Appendicisporites ethmos
|
Wyoming |
Late Campanian |
|
Appendicisporites |
Appendicisporites irregularis
|
Wyoming |
Late Campanian |
|
Aquilapollenites |
Aquilapollenites striatus
|
Wyoming |
Cretaceous |
|
Araucariacites |
Araucariacites australis
|
Wyoming |
Late Campanian |
|
Arecipites |
Arecipites tenuiexinous
|
Wyoming |
Early Paleocene |
|
Bennettiteaepollenites |
Bennettiteaepollenites sp
|
Wyoming |
Santonian |
|
Betula |
Betula claripites
|
Wyoming |
Middle Eocene |
|
Betula |
Betula claripites
|
Wyoming |
Paleocene |
|