palaeoichthyologist
/ˌpalɪəʊˌɪkθɪˈɒlədʒɪst/ /ˌpeɪlɪəʊˌɪkθɪˈɒlədʒɪst/(also palaeichthyologist, paleichthyologist, paleoichthyologist) Palaeontology
noun
A palaeontologist who specializes in extinct and fossil fishes.
Origin
Late 19th century; earliest use found in Theodore Gill (1837–1914). From palaeo- + ichthyologist, after palaeoichthyology.