| Heintzichthys | |
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Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †Arthrodira |
| Suborder: | †Brachythoraci |
| Family: | †Selenosteidae |
| Genus: | †Heintzichthys Whitley 1933 |
| Species | |
| Synonyms | |
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Heintzichthys is anextinctmonospecificgenus ofarthrodireplacoderm that lived what is nowEurope andNorth America during theFamennian stage of theLate Devonian period. Thetype specimen was discovered in theCleveland Shale nearCleveland,Ohio, in the United States.[1]
Heintzichthys is a member of thefamilySelenosteidae of thecladeAspinothoracidi, which belongs to the cladePachyosteomorphi, one of the two major clades withinEubrachythoraci. Thecladogram below shows thephylogeny ofHeintzichthys:[2]
According to a 2022 Jobbinset al. study,Heintzichthys was found to be a sister taxa toGorgonichthys.[3]
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