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Anarthraspis
Extinct genus of placoderm fishes From Wikipedia, the free encyclopedia
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Anarthraspis is an extinct genus of arthrodire placoderm fishes which lived during the Early Devonian period.[1][2] It contains two species described in 1932, Anarthraspis chamberlini and Anarthraspis montanus, both found in the Beartooth Butte Formation of Wyoming and Montana, USA, and assigned to the genus in 1934.[3]
The type species, Anarthraspis chamberlini, was a contemporary of the placoderm Bryantolepis. The specific epithet, chamberlini, honours British Prime Minister Neville Chamberlain.
Anarthraspis is one of the more basal members of the order Arthrodira, as shown in the cladogram below:[4]
Actinolepidoidei
Phlyctaeniina |
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