Helios |
Helios aranaides
|
USA(Eastern) |
Late Llandoverian |
Early Wenlockian |
Helios |
Helios aranaides
|
Canada(Nova Scotia) |
Late Llandoverian |
Early Wenlockian |
Helosphaeridium |
Helosphaeridium clavispinulosum
|
England |
Ludlovian |
|
Helosphaeridium |
Helosphaeridium latispinosum
|
England |
Ludlovian |
|
Helosphaeridium |
Helosphaeridium latispinosum
|
New York |
Wenlockian |
|
Helosphaeridium |
Helosphaeridium latispinosum
|
Canada(Ontario) |
Wenlockian |
|
Helosphaeridium |
Helosphaeridium pseudodictyum
|
England |
Wenlockian |
Ludlovian |
Helothuriadeigma |
Helothuriadeigma heterakainum
|
Canada(Ontario) |
Early Llandoverian |
|
Hemideunffia |
Hemideunffia trifurcata
|
Canada(Ontario) |
Wenlockian |
|
Holothuriadeigma |
Holothuriadeigma heterakainum
|
New York |
Early Llandoverian |
|
Holothuriadeigma |
Holothuriadeigma heterakainum
|
Canada(Ontario) |
Early Llandoverian |
|
Horologinella |
Horologinella quadrispina
|
Algeria |
Famennian |
|
Leiofusa |
Leiofusa algerensis
|
USA(Eastern) |
Late Llandoverian |
Early Ludlovian |
Leiofusa |
Leiofusa algerensis
|
Canada(Nova Scotia) |
Middle Wenlockian |
|
Leiofusa |
Leiofusa algerensis
|
Canada(Ontario) |
Late Llandoverian |
Wenlockian |
Leiofusa |
Leiofusa argentina
|
Canada |
Late Gothlandian |
|
Leiofusa |
Leiofusa aspilis
|
Argentina |
Late Gothlandian |
|