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Placoderms were an extinct group of prehistoric fish that lived during the Silurian and Devonian periods, distinguished by their distinctive armor-plated heads and thoraxes covering mostly cartilaginous skeletons. They matter to our understanding of vertebrate evolution because they represent an early branch of fish that developed protective plating, a significant innovation in how ancient animals adapted to their environments.
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Wikidata facts
- Parent taxon
- Gnathostomata
- Image
- DunkleosteusSannoble.JPG
Show 10 more facts
- Commons category
- Gnathostomata
- taxon rank
- class
- taxon common name
- Zırhlı balıklar
- taxon name
- Placodermi
- topic's main category
- Category:Placoderms
- start time
- 430000000-
- end time
- 358900000-
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- temporal range start
- Silurian
- temporal range end
- Late Devonian
Sources (1)
via Wikidata · CC0
Article · Français
Placodermi Placodermi Vue d'artistes de différents placodermes. Classe † PlacodermiMc Coy, 1848 Ordres de rang inférieur * † * †Antiarchi * †Arthrodira * †Minjinia * † * † * † * †Ptyctodontida * †Rhenanida * † Les placodermes (Placodermi) forment une classe éteinte de poissons. Ils furent parmi les tout premiers vertébrés gnathostomes (possédant une mâchoire). Ils ont vécu du Silurien au Dévonien (entre −440 et −358 millions d'années).
Abstract from DBpedia / Wikipedia · CC BY-SA