Anthatractus |
Anthatractus insolitus
|
Nd |
Paleozoic |
|
Aremoricanium |
Aremoricanium rigaudiae
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium lumectum
|
Nd |
Late Mesozoic |
Tertiary |
Baltisphaeridium |
Baltisphaeridium ramusculosum
|
Nd |
Paleozoic |
|
Cannosphaeropsis |
Cannosphaeropsis aemula
|
Nd |
Late Mesozoic |
Tertiary |
Cymatiosphaera |
Cymatiosphaera canadensis
|
Nd |
Paleozoic |
|
Deunffia |
Deunffia furcata
|
Nd |
Paleozoic |
|
Hystrichokolpoma |
Hystrichokolpoma rigaudiae
|
Nd |
Late Mesozoic |
Tertiary |
Hystrichosphaera |
Hystrichosphaera furcata
|
Nd |
Late Mesozoic |
Tertiary |
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
Nd |
Late Mesozoic |
Tertiary |
Leiosphaeridia |
Leiosphaeridia wenlockia
|
Nd |
Paleozoic |
|
Micrhystridium |
Micrhystridium fragile
|
Nd |
Late Mesozoic |
Tertiary |
Pterocystidiopsis |
Pterocystidiopsis stephaniana
|
Nd |
Late Mesozoic |
Tertiary |
Pterospermopsis |
Pterospermopsis australiensis
|
Nd |
Late Mesozoic |
Tertiary |
Veryhachium |
Veryhachium trispinosum
|
Nd |
Paleozoic |
|