selts

Bactritida Shimanskiy, 1951

Valik taksonit käsitlevast teaduskirjandusest
Kröger, B., Klug, C., Mapes, R. 2005. Soft−tissue attachments in orthocerid and bactritid cephalopods from the Earlyand Middle Devonian of Germany and Morocco. Acta Palaeontologica Polonica 50, 2, 329–342.