Class: Miliolata    Subclass: Ammodiscana    Order: Spirillinida    Family: Ammodiscidae
Trepeilopsis Cushman & Waters, 1928

Trepeilopsis glomospiroides
Gutschick&Treckmann, 1959
identified by scientist   
Carboniferous
Midwestern USA

Trepeilopsis recurvidens
Gutschick&Treckmann, 1959
identified by scientist   
Carboniferous
Midwestern USA

Trepeilopsis spiralis
Gutschick&Treckmann, 1959
identified by scientist   
Carboniferous
Midwestern USA

Trepeilopsis spiralis
Gutschick&Treckmann, 1959
identified by scientist   
Carboniferous
Midwestern USA

Trepeilopsis sp.
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identified by scientist   
Carboniferous
Midwestern USA