Rotaspora |
Rotaspora knoxii
|
Arkansas |
Late Chesterian |
|
Rotaspora |
Rotaspora ambigua
|
Arkansas |
Late Chesterian |
|
Spelaeotriletes |
Spelaeotriletes arenaceus
|
Arkansas |
Springerian |
|
Mooreisporites |
Mooreisporites trigallerus
|
Arkansas |
Springerian |
|
Tricidarisporites |
Tricidarisporites balteolus
|
Arkansas |
Springerian |
|
Cincturasporites |
Cincturasporites magnus
|
Arkansas |
Springerian |
|
Florinites |
Florinites visendus
|
Arkansas |
Early Pennsylvanian |
|
Potonieisporites |
Potonieisporites elegans
|
Arkansas |
Early Pennsylvanian |
|
Secarisporites |
Secarisporites remotus
|
Arkansas |
Early Pennsylvanian |
|
Cirratriradites |
Cirratriradites saturni
|
Arkansas |
Late Chesterian |
Morrowan |
Laevigatosporites |
Laevigatosporites desmoinesensis
|
Arkansas |
Late Chesterian |
Morrowan |
Schopfipollenites |
Schopfipollenites ellipsoides
|
Arkansas |
Late Chesterian |
Morrowan |
Crassispora |
Crassispora kosankei
|
Arkansas |
Late Chesterian |
Morrowan |
Auroraspora |
Auroraspora solisorta
|
Arkansas |
Late Chesterian |
Springerian |
Velamisporites |
Velamisporites rugosus
|
Arkansas |
Late Chesterian |
Springerian |
Proprisporites |
Proprisporites laevigatus
|
Arkansas |
Late Chesterian |
Springerian |
Reticulatisporites |
Reticulatisporites peltatus
|
Arkansas |
Late Chesterian |
Springerian |