Dipterus (from Greek: δίς dís, 'two' and Greek: πτερόν pteron 'wing')[2] is an extinct genus of marine lungfish from the middle Devonian period of Europe and potentially North America.
The genus was established by Adam Sedgwick & Roderick Murchison in the year 1828.
In most respects, Dipterus, which was about 35 centimetres (14 in) long, closely resembled modern lungfish.
Like its ancestor Dipnorhynchus, it had tooth-like plates on its palate instead of real teeth.
[3] The following species are known:[4][5] Many other species from Europe and North America have also been described based on isolated tooth plates, though due to their fragmentary nature, their exact taxonomic affinity is uncertain.