Sigaspis

Sigaspis is an extinct monospecific genus of arthrodire placoderm fish from the Early Devonian period. The type species Sigaspis lepidophora was described by Daniel Goujet in 1973, and was found on the island of Spitsbergen, Svalbard in Norway.[1]

Sigaspis
Temporal range: Early Devonian,
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Placodermi
Order: Arthrodira
Genus: Sigaspis
Goujet, 1973
Species
  • Sigaspis lepidophora Goujet, 1973 (type)

It is one of the more basal members of the order Arthrodira, as shown in the cladogram below:[2]

Lunaspis broilii

Eurycaraspis incilis

Arthrodira

Yujiangolepis liujingensis

Antarctaspis mcmurdoensis

Wuttagoonaspidae

Yiminaspis shenme

Wuttagoonaspis fletcheri

Aethaspis major

Aethaspis utahensis

Lehmanosteus hyperboreus

Aleosteus eganensis

Simblaspis cachensis

Kujdanowiaspis buczacziensis

Kujdanowiaspis podolica

Erikaspis zychi

Sigaspis lepidophora

Eskimaspis heintzi

Baringaspis dineleyi

Proaethaspis ohioensis

Anarthraspis chamberlini

Heightingtonaspis anglica

Phyllolepida

Gavinaspis convergens

Phyllolepis orvini

Austrophyllolepis sp.

Cowralepis mclachlani

Placolepis budawangensis

Actinolepidae

Bollandaspis woschmidti

Actinolepis spinosa

Actinolepis magna

Actinolepis tuberculata

Bryantolepis brachycephalus

Phlyctaenioidei

Phlyctaeniidae

Groenlandaspidae

Arctaspidae

Dicksonosteus arcticus

Arctolepidae

Brachythoraci

Actinolepidoidei
Phlyctaeniina

References

  1. Goujet, Daniel (January 1973). "Sigaspis, un nouvel arthrodire du Dévonien inférieur du Spitsberg". Palaeontographica Abteilung A. 143: 73–88.
  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". Zoological Journal of the Linnean Society. 157: 70. doi:10.1111/j.1096-3642.2009.00519.x.


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