Osteichthyes - Osteolepidiformes - Tristichopteridae

Synonym: Holoptychius radiatus Newberry 1889 [replaced name]

Full reference: E. B. Daeschler, J. P. Downs, and C. Matzko. 2019. New material supports a description and taxonomic revision of Holoptychius ? radiatus (Sarcopterygii, Tristichopteridae) from the Upper Devonian Catskill Formation in Pennsylvania, USA. Proceedings of the Academy of Natural Sciences of Philadelphia 167(1):11

Belongs to Langlieria according to E. B. Daeschler et al. 2019

See also Hay 1902 and Mondéjar‐Fernández et al. 2020

Sister taxa: Langlieria smalingi, Langlieria socqueti

Ecology:

Distribution: found only at Road cut exposure along the Covington Bypass, Route 15 (Interstate 99) (Devonian of Pennsylvania)

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Specimen images are retrieved through the ePANDDA API.