Type species: Minilya duplaris Crockford, 1944 (=Fenestella horologia Bretnall, 1926)
This genus includes the species (the status of many of these species is equivocal):
| Minilya alticarininodialis | Xia, 1997 | Devonian | China (Xinjiang) |
| Minilya amplia | Crockford, 1944 | Permian | W. Australia (WA) |
| Minilya binodata | (Condra, 1902) | Carboniferous-Permian | USA, Bolivia |
| Minilya binodata densimura | (Yang, Lu & Xia, 1981) | Permian Cisuralian | China Xizang |
| Minilya bispinulata | (Moore, 1930) | Carboniferous Pennsylvanian Kasimovian | USA Texas |
| Minilya bituberculata | (Crockford, 1941) | Permian Cisuralian Sakmarian | Australia NSW |
| Minilya conradi | (Ulrich, 1890) | Permian Cisuralian Asselian-Sakmarian | USA Iowa, Nebraska |
| Minilya conradi compactilis | (Condra, 1902) | Carboniferous-Permian | USA, Russia |
| Minilya crockfordae | Burckle, 1960 | Mississippian | USA (Utah) |
| Minilya hexagona | Lu, 1983 | Carboniferous Mississippian Visean | China |
| Minilya horologia | (Bretnall, 1926) | Permian | Australia |
| Minilya illustria | Troizkaya, 1975) | Palaeozoic | Kazakhstan |
| Minilya incipiens | Burckle, 1960) | Mississippian | USA (Utah) |
| Minilya liminodata | Yang & Lu, 1962 | Carboniferous-Permian | China |
| Minilya magnispinata | (Schulga-Nesterenko, 1941) | Permian Cisuralian Asselian | Russia |
| Minilya nodulosa | (Phillips, 1836) | Carboniferous Mississippian Visean | England |
| Minilya obliqua | Kodsi, 1967 | U. Carboniferous | Austria |
| Minilya oculata | (McCoy, 1844) | Carboniferous Mississippian Visean | Ireland |
| Minilya oculata | (M'Coy, 1844) | Carboniferous | England |
| Minilya paratriserialis | Snyder, 1991 | Mississippian | USA |
| Minilya perelegans | (Waagen & Pichl, 1885) | Permian Guadalupian | Pakistan, Iran, Tibet |
| Minilya plummerae | (Moore, 1929) | Permian | USA |
| Minilya polita | (Troitzkaya, 1968) | Middle Devonian Givetian | Russia |
| Minilya praerhomboidea | (Schulga-Nesterenko, 1951) | Carboniferous Pennsylvanian Gzhelian | Russia Russian Platform |
| Minilya princeps | Crockford, 1944 | Permian | Australia (WA) |
| Minilya pseudoamplia | Sakagami, 1966 | Permian | Thailand |
| Minilya quadratopora | (Schulga-Nesterenko, 1939) | Permian Cisuralian | Russia, USA |
| Minilya rhomboidea | (Nikiforova, 1938) | Carboniferous-Permian | Russia, USA |
| Minilya rhomboidea podscheremensis | (Schulga-Nesterenko, 1936) | Permian Cisuralian | Russia |
| Minilya sivonella | Snyder, 1991 | Mississippian | USA |
| Minilya taishakuensis | Sakagami & Akagi, 1963 | Permian | Japan |
| Minilya tuberculata | Kruchinina, 1986 | L. Permian | Russia |
| Minilya usita | Troizkaya, 1979 | U. Devonian | Kazakhstan |
This information is based upon various sources, but no personal knowledge. I am indebted to the late Alan Horowitz for his compilation, and to Dr. J. Pachut.
I would be grateful for corrections to, or critical reviews of this information. This is not a 'final' version (an impossible ideal), but a working document. The genus Minilya seems to be a difficult one for taxonomic consensus: I have taken a few guesses in this compilation.