Acanthotriletes |
Acanthotriletes acutispinosus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes acutispinosus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes breviapiculatus
|
USSR(Sverdlovskaya) |
Middle Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes cepuliniformis
|
USSR(Sverdlovskaya) |
Jurassic |
Jurassic |
Acanthotriletes |
Acanthotriletes medius
|
USSR(Sverdlovskaya) |
Early Jurassic |
|
Acanthotriletes |
Acanthotriletes minutus
|
USSR(Sverdlovskaya) |
Middle Jurassic |
|
Acanthotriletes |
Acanthotriletes obtusosaetosus
|
USSR(Sverdlovskaya) |
Middle Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes obtusosaetosus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes rostratus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Early Jurassic |
Acanthotriletes |
Acanthotriletes rotundiformis
|
USSR(Sverdlovskaya) |
Middle Jurassic |
Late Jurassic |
Acanthotriletes |
Acanthotriletes sibiricus
|
USSR(Sverdlovskaya) |
Early Jurassic |
|
Acanthotriletes |
Acanthotriletes solidus
sp. nov. |
USSR(Sverdlovskaya) |
Middle Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes spinellosus
|
USSR(Yakut ASSR) |
Middle Jurassic |
Early Jurassic |
Acanthotriletes |
Acanthotriletes spinosellus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes spinosus
|
USSR(Sverdlovskaya) |
Early Jurassic |
Middle Jurassic |
Acanthotriletes |
Acanthotriletes tenuis
|
USSR(Sverdlovskaya) |
Middle Jurassic |
|
Acanthotriletes |
Acanthotriletes trigonis
|
USSR(Sverdlovskaya) |
Middle Jurassic |
|