Amphiaspidoidei
Amphiaspidoidei is a taxon of extinct amphiaspidid heterostracan agnathans whose fossils are restricted to Lower Devonian marine strata of Siberia near the Taimyr Peninsula. In life, the amphiaspidids of Amphiaspidoidei are thought to be benthic animals that lived most of their lives mostly buried in the sediment of a series of hypersaline lagoons. Amphiaspids are easily distinguished from other heterostracans in that all of the plates of the cephalothorax armor are fused into a single, muff-like unit, so that the forebody of the living animal would have looked like a potpie or a hot waterbottle with a pair of small, or degenerated eyes flanked by preorbital openings, a pair of branchial openings for exhaling, and a simple, slit-like mouth.
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Amphiaspidoidei
Amphiaspidoidei is a taxon of extinct amphiaspidid heterostracan agnathans whose fossils are restricted to Lower Devonian marine strata of Siberia near the Taimyr Peninsula. In life, the amphiaspidids of Amphiaspidoidei are thought to be benthic animals that lived most of their lives mostly buried in the sediment of a series of hypersaline lagoons. Amphiaspids are easily distinguished from other heterostracans in that all of the plates of the cephalothorax armor are fused into a single, muff-like unit, so that the forebody of the living animal would have looked like a potpie or a hot waterbottle with a pair of small, or degenerated eyes flanked by preorbital openings, a pair of branchial openings for exhaling, and a simple, slit-like mouth.
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Amphiaspidoidei is a taxon of ...... and a simple, slit-like mouth.
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kingdom
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Wikipage page ID
46,356,633
Wikipage revision ID
725,859,397
fossil range
Early Devonian
image caption
Amphiaspis argo reconstruction
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*Amphiaspididae
*Edaphaspididae
*Gabreyaspididae
*Olbiaspididae
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Amphiaspidoidei
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Amphiaspidoidei is a taxon of ...... and a simple, slit-like mouth.
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Amphiaspidoidei
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Amphiaspidoidei
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