Temporal range: Early Devonian: Lochkovian-Pragian, 419–407 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Placodermi
Order:
†Arthrodira
Genus:
†Erikaspis Dupret, Goujet & Mark-Kurik, 2007
Species
†Erikaspis zychi (Stensiö, 1945) (type)
Erikaspis is an extinct monospecific genus of arthrodire placoderm fish found in Lochkovian-Pragian (Lower Devonian) deposits of Podolia, Western Ukraine. The type species Erikaspis zychi was originally described in 1945 by Erik Stensiö based on a partial skull-roof, and was named Kujdanowiaspis zychi. In 2007, it was subsequently reassigned to the newly named genus Erikaspis, based on significant differences from Kujdanowiaspis.[1][2]
It is one of the more basal members of the order Arthrodira, as shown in the cladogram below:[3]
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
^Dupret, Vincent (2010). "Revision of the genus Kujdanowiaspis Stensiö, 1942 (Placodermi, Arthrodira, "Actinolepida") from the Lower Devonian of Podolia (Ukraine)". Geodiversitas. 32 (1): 5–63. doi:10.5252/g2010n1a1. S2CID 129505974.
^Dupret, Vincent; Goujet, Daniel; Mark-Kurik, Elga (2007). "A New Genus of Placoderm (Arthrodira: 'Actinolepida') from the Lower Devonian of Podolia (Ukraine)". Journal of Vertebrate Paleontology. 27 (2): 266–284. ISSN 0272-4634.
^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.
Erikaspis is an extinct monospecific genus of arthrodire placoderm fish found in Lochkovian-Pragian (Lower Devonian) deposits of Podolia, Western Ukraine...
and described by Stensiö in 1945, but was reassigned to the new genus Erikaspis in 2007. Kujdanowiaspis is one of the more basal members of the order...
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