Cathlesichthys
{{Short description|Extinct genus of homostiid arthrodire}}
{{Speciesbox
| fossil_range = {{Geological range|Early Devonian}}
| genus = Cathlesichthys
| parent_authority = Young, 2004
| species = weejasperensis
| authority = Young, 2004
}}
Cathlesichthys is an extinct genus of homostiid arthrodire from Wee Jasper, during the Early Devonian.{{cite journal|doi=10.1671/1942-1|title=Large brachythoracid arthrodires (Placoderm fishes) from the early Devonian of Wee Jasper, New South Wales, Australia, with a discussion of basal brachythoracid characters |year=2004 |last1=Young |first1=Gavin C. |journal=Journal of Vertebrate Paleontology |volume=24 |pages=1–17 |s2cid=129319924 }}
Etymology
The generic epithet honors Ian and Helen Cathles, being a compound of their surname combined with the Greek word for fish ιχθύς (ichthýs). The specific epithet refers to the location of where it was found (Wee Jasper).