| 词条 | Ctenaspidae |
| 释义 |
| name = Ctenaspidae | fossil_range = | image = | image_caption = | image caption = | regnum = Animalia | phylum = Chordata | classis = Pteraspidomorphi | subclassis = Heterostraci | ordo = Cyathaspidiformes | unranked_subordo = Cyathaspidida | familia = Ctenaspidae | familia_authority = | subdivision_ranks = Genera | subdivision = See text }} Ctenaspidae is a family of extinct cyathaspidiform heterostracan agnathans in the suborder Cyathaspidida. If Amphiaspidida can be ignored as a daughter-taxon, the family Ctenaspidae contains Ctenaspis and its various sister-taxa originally contained within both Ctenaspididae and Ctenaspididae, including Allocryptaspis, Alainaspis, Zaphoctenaspis, Arctictenaspis, and Boothiaspis, which was first described as a "Canadian amphiaspid." [1] References1. ^Lundgren, Mette, and Henning Blom. "Phylogenetic relationships of the cyathaspidids (Heterostraci)." GFF 135.1 (2013): 74-84. {{Taxonbar|from=Q21291025}}{{Pteraspidomorphi-stub}}{{Devonian-jawless-fish-stub}} 2 : Cyathaspidida|Prehistoric jawless fish families |
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