†family Holonematidae Obruchev 1932 (armour-plated fish)

Placodermi - Arthrodira - Holonematidae

Parent taxon: Phlyctaenina according to R. H. Denison 1984

See also Denison 1975 and Denison 1978

Sister taxon: Phlyctaeniidae

Subtaxa: Belemnacanthus Deirosteus Deveonema Gyroplacosteus Holonema Megaloplax Rhenonema Tiaraspis Tropidosteus

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Ecology: nektonic carnivore

Distribution:

• Devonian of Australia (1 collection), Estonia (4), Iran (1), Latvia (2), Poland (1), United States (2: Pennsylvania)

Total: 11 collections including 15 occurrences

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