Pteraspidomorphi
Sign in to savePteraspidomorpha (also frequently spelled Pteraspidomorphi) is an extinct class of early jawless fish. They have long been regarded as closely related or even ancestral to jawed vertebrates, but the few characteristics they share with the latter are now considered as basal traits for all vertebrates.
In the Vinony graph
Within Vinony's link graph, Pteraspidomorphi is referenced by 149 other articles, and connects out to Arandaspida, Vertebrata and Devonian.
It sits within the topics Early Ordovician first appearances, Late Devonian animals and Late Devonian extinctions.
Its subject is documented across 25 Wikipedia language editions.
Wikidata facts
- Parent taxon
- Craniata
- Image
- Drepanaspis gemuendina.jpg
Show 6 more facts
- Commons category
- Vertebrata
- taxon name
- Pteraspidomorphi
- taxon rank
- class
- topic's main category
- Category:Pteraspidomorphi
- start time
- 497000000-
- end time
- 359000000-
Sources (1)
via Wikidata · CC0
~3 min read
Encyclopedic overview
6 sectionsContents
- Characteristics
- Classification
- Phylogeny
- See also
- References
- External links
Pteraspidomorpha (also frequently spelled Pteraspidomorphi) is an extinct class of early jawless fish. They have long been regarded as closely related or even ancestral to jawed vertebrates, but the few characteristics they share with the latter are now considered as basal traits for all vertebrates.
==Characteristics== Pteraspidomorphs are characterized by their massive dermal head armour having large, median, ventral and dorsal plates or shields.
Excerpted from Wikipedia’s “Pteraspidomorphi” article, available under the CC BY-SA 4.0 licence.