Thelodus is an extinct genus of primitive jawless fish that lived in the Silurian period. Fossils have been found worldwide.

 Thelodus belonged to the Thelodonti, a group of jawless fish lacking the armored plating characteristic of the related Heterostraci. The position of Thelodus`s mouth suggests that it fed on the ocean floor. Despite this lifestyle it was also a good swimmer, as indicated by its elongated lower caudal lobe and stabilizing dorsal fin, anal fin and paired pectoral fins.

 Репродукции (1, 2, 3):

 Ископаемые останки:

Tags: Вымершие бесчелюстные, Силур

(Leave a comment)