Early Mammals

Johann Christian Daniel von Schreber (1739-1810), student of Linnaeus:

LemurvolansLinn

BradypustridactylusLinn

The above illustrations  from ‘Die Saugthiere in Abbildungen‘ at Ecole Nationale Vétérinaire de Lyon (named as ‘Histoire naturelle des quadrupèdes‘ – either misslabelled or this is the title of the french edition) — there are about 200 illustrations available from the original 775 engravings published:

Volume I, Volume II, Volume III.

– via Bibliodyssey