Article · Wikipedia archive · Last revised Jul 28, 2026

Aethaspis

Aethaspis is an extinct genus of arthrodire placoderm fish from the Devonian period. Two species were described by Denison in 1958: Aethapsis major and Aethapsis utahensis. It is one of the more basal members of the order Arthrodira, as shown in the cladogram below:

Last revised
Jul 28, 2026
Read time
≈ 1 min
Length
203 w
Citations
2
Source
Wikipedia ↗
Aethaspis
Temporal range: Devonian: Pragian,
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: †Placodermi
Order: †Arthrodira
Genus: †Aethaspis
Denison, 1958
Species
  • †Aethaspis major Denison, 1958 (type)
  • †Aethaspis utahensis Denison, 1958

Aethaspis is an extinct genus of arthrodire placoderm fish from the Devonian period. Two species were described by Denison in 1958: Aethapsis major and Aethapsis utahensis.1 It is one of the more basal members of the order Arthrodira, as shown in the cladogram below: 2

Eurycaraspis incilis

Lunaspis broilii

Arthrodira
Actinolepidoidei
Phlyctaeniina


References

References

  1. Van Valen, Leigh (January 1963). "The Head Shield of Macropetalichthys (Arthrodira)". Journal of Paleontology. 37 (1): 257–263.
  2. Dupret, V.; Zhu, M. I. N.; Wang, J. N. Q. (2009). "The morphology of Yujiangolepis liujingensis (Placodermi, Arthrodira) from the Pragian of Guangxi (south China) and its phylogenetic significance" (PDF). Zoological Journal of the Linnean Society. 157: 70. doi:10.1111/j.1096-3642.2009.00519.x.