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Amphiaspis argo Temporal range: Early Devonian
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Amphoraspis stellata reconstruction | |
Scientific classification | |
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Genus: | Amphoraspis
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Species: | A. stellata
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Binomial name | |
Amphoraspis stellata Novitskaya & Karatayute, 1989
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Amphoraspis stellata is an amphiaspidid heterostracan in the family Amphiaspididae. Its fossils are restricted to early Devonian-aged marine strata of the Taimyr Peninsula, Siberia. A. stellata, as with all other amphiaspidids, is thought to have been a benthic filter feeder that lived on top of, or buried just below the surface of the substrate of hypersaline lagoon-bottoms.
So far, A. stellata is known from at least one, 14 centimeter-long, broad and dorsally rounded cephalothoracic armor that is shaped vaguely like, as the generic name suggests, an amphora.[1] The animal had small, possibly degenerate eyes that were flanked laterally by a small, crescent-shaped branchial opening. The small eyes, in turn, laterally flank a small, slit-shaped mouth at the center of the anterior-most end of the cephalothorax. The external surface of the armor has a unique micro-ornamentation of a pattern of star-like shapes.
References
- ^ Novitskaya L.I.; Karatayute Talimaa V.N., 1989: New amphiaspididae from the lower devonian deposits in taimyr russian sfsr ussr. Paleontologicheskii Zhurnal.(3): 112-116
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File:Amphoraspis stellata.jpg
Taxonomy (biology)
Animal
Chordata
Pteraspidomorphi
Heterostraci
Cyathaspidiformes
Amphiaspidida
Amphiaspidoidei
Amphiaspididae
Binomial nomenclature
Amphiaspidida
Heterostraci
Family (biology)
Amphiaspididae
Devonian
Taimyr Peninsula
Siberia
Benthos
Filter feeder
Hypersaline
Cephalothorax
Amphora
Help:Taxon identifiers
Wikidata
Q20312798
Global Biodiversity Information Facility
Interim Register of Marine and Nonmarine Genera
File:Ostracoderm digital recreation..jpg
Devonian
Jawless fish
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