Trachysphaeridium |
Trachysphaeridium sp
|
Canada(Newfoundland) |
|
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
Canada(Newfoundland) |
|
|
Eomicrhystridium |
Eomicrhystridium sp
|
Canada(Newfoundland) |
|
|
Taeniatum |
Taeniatum sp
|
Canada(Newfoundland) |
|
|
Protosphaeridium |
Protosphaeridium laccatum
|
Canada(Newfoundland) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium sp
|
Canada(Newfoundland) |
Middle Riphean |
|
Scaphita |
Scaphita sp
|
Canada(Newfoundland) |
Middle Riphean |
|
Bavlinella |
Bavlinella sp
|
Canada(Newfoundland) |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
Canada(Newfoundland) |
Middle Riphean |
|
Synsphaeridium |
Synsphaeridium
|
Canada(Newfoundland) |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium densum
|
England |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium flexuosum
|
England |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium laccatum
|
England |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
England |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium charnium
|
England |
Middle Riphean |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium sp
|
England |
Middle Riphean |
|
Protosphaeridium |
Protosphaeridium scabridum
|
England |
Middle Riphean |
|