Rhachiosteus
Rhachiosteus pterygiatus is an extinct brachythoracid arthrodire placoderm from the Late Devonian of Germany. It is known only from a single specimen, which may be a larval or juvenile form, as the skull of said specimen is only 19 millimetres long.[1]
| Rhachiosteus | |
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| Artist's reconstruction (with Trematosteus in the background) | |
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| Family: | Rhachiosteidae |
| Genus: | Rhachiosteus |
| Species: | R. pterygiatus |
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| Rhachiosteus pterygiatus Gross, 1938 | |
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References
- Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology'. Stuttgart New York: Gustav Fischer Verlag. p. 128. ISBN 9780895740274.
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