Osteichthyes - Porolepidiformes - Holoptychiidae
Alternative spelling: Holoptychidae
Synonym: Cyclodipterini
Full reference: R. Owen. 1859. Palaeontology. The Encyclopaedia Brittanica, or Dictionary of Arts, Sciences, and General Literature (8th Edition) 17:91-176
Parent taxon: Porolepidiformes according to R. van der Laan 2019
See also Cope 1887, Hay 1902, Jordan 1963, Moloshnikov 2007, Mondéjar‐Fernández et al. 2020, Nelson et al. 2016, Owen 1859, Schultze 2000 and Woodward 1891
Sister taxa: Durialepis, Hamodus, Heimenia, Paraglyptolepis, Porolepididae, Pseudosauripterus, Ventalepididae
Subtaxa: Apedodus Dendrodus Duffichthys Glyptolepis Holoptychius Laccognathus Nasogaluakus Quebecius
Ecology:
Distribution:
• Carboniferous of the United Kingdom (1 collection)
• Givetian of Belarus (1), the United Kingdom (1)
• Devonian of Australia (4), Belarus (6), Belgium (3), Canada (4: Northern Territories, Northwest Territories, Nunavut, Quebec), Colombia (1), Estonia (8), Greenland (1), Iran (1), Ireland (1), Latvia (9), Norway (1), Poland (1), the Russian Federation (6), the United Kingdom (16), United States (12: Arizona, Colorado, New York, Pennsylvania)
Total: 77 collections including 108 occurrences