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Anchipteraspididae: Difference between revisions

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{{Taxobox
{{Taxobox
| fossil_range = Early [[Devonian]]
| fossil_range = Early [[Pridolian]]-Early [[Devonian]]
| image =
| image =
| image_caption =
| image_caption =
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| subclassis = †[[Heterostraci]]
| subclassis = †[[Heterostraci]]
| ordo = †[[Pteraspidiformes]]
| ordo = †[[Pteraspidiformes]]
| subordo = †[[Pteraspidoidei]]
| familia = †'''Pteraspididae'''
| familia = †'''Pteraspididae'''
| familia_authority = [[Edward Waller Claypole|Claypole]], 1885
| familia_authority = [[Edward Waller Claypole|Claypole]], 1885
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'''Anchipteraspididae''' is an extinct family of [[heterostraci|heterostracan]] [[vertebrate]]s restricted to Late Silurian and Early Devonian strata of Arctic Canada.<ref name=elliot1984>Elliott, D. K. "A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the upper Silurian and lower Devonian of Arctic Canada." Palaeontology 27.1 (1984): 169-197.</ref>
'''Anchipteraspididae''' is an extinct family of [[heterostraci|heterostracan]] [[vertebrate]]s restricted to Late Silurian and Early Devonian strata of Arctic Canada.<ref name=elliot1984>Elliott, D. K. "A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the upper Silurian and lower Devonian of Arctic Canada." Palaeontology 27.1 (1984): 169-197.</ref>


Anchipteraspidids superficially resemble the ancestral [[cyathaspidiformes|cyathaspidids]], but, the articulation and growth patterns of the plates clearly define them as [[pteraspidiformes|pteraspidids]].
== Genera ==
== Genera ==
* †''[[Anchipteraspis]]''
* †''[[Anchipteraspis]]''

Revision as of 16:51, 4 April 2017

Anchipteraspididae
Temporal range: Early Pridolian-Early Devonian
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
Order:
Family:
Pteraspididae

Claypole, 1885
Type genus
Pteraspis
Kner & Woodward, 1900
Genera

See text

Synonyms

Pteraspidae (paraphyletic)

Anchipteraspididae is an extinct family of heterostracan vertebrates restricted to Late Silurian and Early Devonian strata of Arctic Canada.[1]

Anchipteraspidids superficially resemble the ancestral cyathaspidids, but, the articulation and growth patterns of the plates clearly define them as pteraspidids.

Genera

References

  1. ^ Elliott, D. K. "A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the upper Silurian and lower Devonian of Arctic Canada." Palaeontology 27.1 (1984): 169-197.
  • On the recent discovery of Pteraspidian fish in the upper Silurian rocks of North America. Edward Waller Claypole, Quart. Journ. Geol. Soc. 1885, volume 41, pages 48-64, doi:10.1144/GSL.JGS.1885.041.01-04.10
  • Revised classification of Pteraspididae with description of new forms from Wyoming. Robert Howland Denison, Fieldiana. Geology ; v. 20, no. 1, doi:10.5962/bhl.title.3330