Biology:Lehmanosteus

Short description: Genus of extinct fish

Lehmanosteus Temporal range: Early Devonian, 419–393 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	†Arthrodira
Genus:	†Lehmanosteus Goujet, 1984
Species
†Lehmanosteus hyperboreus Goujet, 1984 (type)

Lehmanosteus is an extinct monospecific genus of arthrodire placoderm fish, named after French paleontologist Jean-Pierre Lehman. The type species Lehmanosteus hyperboreus was described in 1984, and was found in Early Devonian strata of the Wood Bay Formation on the island of Spitsbergen, Svalbard in Norway .

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

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

Wikidata ☰ Q48996258 entry