Eurycaraspis
Eurycaraspis incilis is an extinct petalichthid placoderm from the Middle Devonian of China. It is closely related to Quasipetalichthys.
Anatomy
E. incilis differs from Quasipetalichthys by having a more circular-shaped skull.
Phylogeny
E. incilis is considered a basal petalichthyid, and is placed in Quasipetalichthyidae as Quasipetalichthys' sister taxon. Quasipetalichthyidae, in turn, is considered the sister group of Macropetalichthyidae.
References
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| Basal antiarchs | |
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| Sinolepidae |
- Dayaoshania
- Grenfellaspis
- Sinolepis
- Vanchienolepis
- Xichonolepis
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| Yunnanolepiformes | |
- Heteroyunnanolepis
- Zhanjilepis
- Shimenolepis
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| Chuchinolepidae | |
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| Euantiarcha | Asterolepidoidei | |
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| Bothriolepidoidei |
- Dianolepis
- Kirgisolepis
- Luquanolepis
- Nawagiaspis
- Tenizolepis
| | Bothriolepididae |
- Bothriolepis
- Briagalepis
- Grossilepis
- Monarolepis
- Vietnamaspis
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| Jiangxilepididae |
- Jiangxilepis
- Ningxialepis
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- Aethaspis
- Aleosteus
- Anarthraspis
- Baringaspis
- Bryantolepis
- Erikaspis
- Eskimaspis
- Heightingtonaspis
- Kujdanowiaspis
- Lataspis
- Lehmanosteus
- Mediaspis
- Proaethaspis
- Sigaspis
- Simblaspis
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- Antarctaspis
- Qataraspis
- Yujiangolepis
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| Phlyctaenioidei / Phlyctaenii * | Phlyctaenididae | |
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| Arctaspididae | |
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| Arctolepididae | |
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| Groenlandaspididae | |
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| Williamsaspididae | |
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| | Basal
brachythoracids | | | |
- Herasmius
- Heterosteus
- Tollichthys
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- Angarichthys
- Cathlesichthys
- Dhanguura
- Euleptaspis
- Euleptaspis
- Luetkeichthys
| | Migmatocephala | |
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| Eubrachythoraci | Coccosteomorphi | | |
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| Plourdosteidae |
- Compagopiscis
- Gogopiscis
- ?Kimberleyichthys
- Menamaraspis
- ?Plourdosteus
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| Torosteidae |
- Eldenosteus
- Harrytoombsia
- Torosteus
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| Pachyosteomorphi | | | | |
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| Leptosteidae | |
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| Rachiosteidae | |
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| | Bungartiidae | |
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| Mylostomatidae |
- Dinomylostoma
- Kendrickichthys
- Mylostoma
- Tafilalichthys
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| Trematosteidae |
- Belosteus
- Brachyosteus
- Cyrtosteus
- Parabelosteus
- Trematosteus
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| Dunkleosteoidea | |
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