Dickosteus Explained

Dickosteus is an extinct genus of coccosteid arthrodire placoderm from the Late Eifelian to Early Givetian stages of the Middle Devonian period. Fossils are found in Orkney and Caithness, Scotland. It was a small placoderm with a total body length of .[1] It is one of the few placoderms for which complete bodies are known.

Phylogeny

Dickosteus is a member of the family Coccosteidae, which belongs to the clade Coccosteomorphi, one of the two major clades within Eubrachythoraci. The cladogram below shows the phylogeny of Dickosteus:[2]

Notes and References

  1. Engelman. Russell K.. 2023. A Devonian Fish Tale: A New Method of Body Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira). Diversity. 15. 3. 318. 10.3390/d15030318 . free .
  2. Zhu . You-An . Zhu . Min . Wang . Jun-Qing . 1 April 2016 . Redescription of Yinostius major (Arthrodira: Heterostiidae) from the Lower Devonian of China, and the interrelationships of Brachythoraci . . 176 . 4 . 806–834 . 10.1111/zoj.12356. 0024-4082 . free .

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