Biology:Sigaspis

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Short description: Genus of extinct fish

Sigaspis
Temporal range: Early Devonian, 419–393 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: †Placodermi
Order: †Arthrodira
Genus: †Sigaspis
Goujet, 1973
Species
  • †Sigaspis lepidophora Goujet, 1973 (type)

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]

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. https://www.researchgate.net/publication/290391621_Sigaspis_un_nouvel_arthrodire_du_Devonien_inferieur_du_Spitsberg. 
  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. 

Wikidata ☰ Q123084617 entry