Protopteraspis
Protopteraspis is an extinct genus of pteraspidid heterostracan agnathan with fossils known from Lower Devonian marine strata in Western Europe. The animal's somewhat flat build has led some to believe that it was a bottom dweller, living in freshwater areas. It has been described as "somewhat unspecialized". Its snout was round and narrow, shorter than that of its immediate relatives. Protopteraspis also did not possess the cornua (horns) found on the headshields of other pterapsids; rather, it had "small points" behind the gill opening. It did possess a "medium-sized" dorsal spine. Plates covering the headshield had ridges of dentine. It is theorized that the headshield formed in youth and that it grew via growth of the plates, which fused in adulthood. The scales of the animal were "sma
primaryTopic
Protopteraspis
Protopteraspis is an extinct genus of pteraspidid heterostracan agnathan with fossils known from Lower Devonian marine strata in Western Europe. The animal's somewhat flat build has led some to believe that it was a bottom dweller, living in freshwater areas. It has been described as "somewhat unspecialized". Its snout was round and narrow, shorter than that of its immediate relatives. Protopteraspis also did not possess the cornua (horns) found on the headshields of other pterapsids; rather, it had "small points" behind the gill opening. It did possess a "medium-sized" dorsal spine. Plates covering the headshield had ridges of dentine. It is theorized that the headshield formed in youth and that it grew via growth of the plates, which fused in adulthood. The scales of the animal were "sma
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Protopteraspis is an extinct g ...... re "small and diamond shaped".
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family
kingdom
order (taxonomy)
phylum
Wikipage page ID
35,348,918
Wikipage revision ID
725,862,540
genus
Protopteraspis
image caption
Reconstruction of P. gosseleti
comment
Protopteraspis is an extinct g ...... scales of the animal were "sma
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label
Protopteraspis
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depiction
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name
Protopteraspis
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