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Ctenaspis (
Ctenaspis kaieri) is an
extinct genus of
heterostracan cyathaspid agnathans from the
early Devonian of Canada,
Norway and
Russia 416.0 to 412...
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Ariaspidae Ariaspis Anglaspis Listraspis Liliaspis Paraliliaspis Ctenaspidae Ctenaspis Allocryptaspis Alainaspis Zaphoctenaspis Arctictenaspis Boothiaspis...
- Amphiaspis, Gabreyaspis, and Edaphaspis,
grouped together with
their relative Ctenaspis of Canada), and the
Cyathaspidida (i.e., Cyathaspis, Poraspis, and Anglaspis)...
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Amphiaspidida can be
ignored as a daughter-taxon, the
family Ctenaspidae contains Ctenaspis and its
various sister-taxa
originally contained within both Ctenaspididae...
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Ariaspidae Ariaspis Anglaspis Listraspis Liliaspis Paraliliaspis Ctenaspidae Ctenaspis Allocryptaspis Alainaspis Zaphoctenaspis Arctictenaspis Boothiaspis...
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Ariaspidae Ariaspis Anglaspis Listraspis Liliaspis Paraliliaspis Ctenaspidae Ctenaspis Allocryptaspis Alainaspis Zaphoctenaspis Arctictenaspis Boothiaspis...
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Liliaspis and Paraliliaspis).
Ctenaspidae encomp****es the ctenaspids, (
Ctenaspis,
Arctictenaspis and Zaphoctenaspis), and the
allocryptaspids (Boothiaspis...
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Ariaspidae Ariaspis Anglaspis Listraspis Liliaspis Paraliliaspis Ctenaspidae Ctenaspis Allocryptaspis Alainaspis Zaphoctenaspis Arctictenaspis Boothiaspis...
- †Coelolepis †Cometicercus †Conopiscius †Corvaspis †Corveolepis †Coscinodus †
Ctenaspis †Cyathaspis Contents: A B C D E F G H I J K L M N O P Q R S T U V W X...
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Ariaspidae Ariaspis Anglaspis Listraspis Liliaspis Paraliliaspis Ctenaspidae Ctenaspis Allocryptaspis Alainaspis Zaphoctenaspis Arctictenaspis Boothiaspis...
