Charlesdowniea |
Charlesdowniea sp
|
USSR(Tyumenskaya Oblast) |
Late Ypresian |
Lutetian |
Charlesdowniea |
Charlesdowniea tenuivirgula
|
USSR(Tyumenskaya Oblast) |
Late Ypresian |
Lutetian |
Charlesdowniea |
Charlesdowniea variabilis
|
USSR(Tyumenskaya Oblast) |
Bartonian |
|
Chatangiella |
Chatangiella biapertura
|
USSR(Siberia) |
Late Turonian |
Coniacian |
Chatangiella |
Chatangiella bondarenkoi
|
USSR(Siberia) |
Turonian |
Santonian |
Chatangiella |
Chatangiella cassidea
|
USSR(Siberia) |
Santonian |
|
Chatangiella |
Chatangiella chetiensis
|
USSR(Siberia) |
Coniacian |
Santonian |
Chatangiella |
Chatangiella ditissima
|
USSR(Siberia) |
Campanian |
Maestrichtian |
Chatangiella |
Chatangiella granulifera
|
USSR(Siberia) |
Late Turonian |
Campanian |
Chatangiella |
Chatangiella madura
|
USSR(Siberia) |
Santonian |
Campanian |
Chatangiella |
Chatangiella manumii
|
USSR(Siberia) |
Campanian |
|
Chatangiella |
Chatangiella niiga
|
USSR(Siberia) |
Campanian |
Maestrichtian |
Chatangiella |
Chatangiella obtusa
|
Nd |
Nd |
|
Chatangiella |
Chatangiella serratula
|
USSR(Siberia) |
Late Turonian |
Campanian |
Chatangiella |
Chatangiella sp
|
USSR(Siberia) |
Late Turonian |
Early Coniacian |
Chatangiella |
Chatangiella sp.A
sp. nov. |
USSR(Siberia) |
Santonian |
|
Chatangiella |
Chatangiella sp.G
sp. nov. |
USSR(Siberia) |
Campanian |
|