Rhenanida
Sign in to saveRhenanida ("Rhine (fish)") is an order of scaly placoderms. Unlike most other placoderms, the rhenanids' armor was made up of a mosaic of unfused scales and tubercles. The patterns and components of this "mosaic" correspond to the plates of armor in other, more advanced placoderms, suggesting that the ancestral placoderm had armor made of unfused components, as well.
Wikidata facts
- Parent taxon
- Placoderms
- Image
- Gemuendina stuertzi by avancna.jpg
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- Commons category
- Rhenanida
- taxon name
- Rhenanida
- taxon rank
- order
- topic's main category
- Category:Rhenanida
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Encyclopedic overview
4 sectionsContents
- Evolution
- Presence in the fossil record
- Taxonomy
- References
Rhenanida ("Rhine (fish)") is an order of scaly placoderms. Unlike most other placoderms, the rhenanids' armor was made up of a mosaic of unfused scales and tubercles. The patterns and components of this "mosaic" correspond to the plates of armor in other, more advanced placoderms, suggesting that the ancestral placoderm had armor made of unfused components, as well.
All rhenanids were flattened, ray-like, bottom-dwelling predators that lived in marine environments.
Excerpted from Wikipedia’s “Rhenanida” article, available under the CC BY-SA 4.0 licence.