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Nectocaris
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== Ecology == [[File:Nectocaris pteryx.jpg|thumb|Life restoration]] The unusual shape of the nectocaridid funnel has led to its interpretation as an eversible [[proboscis]]. Martin R. Smith and Jean-Bernard Caron have suggested that it was used for [[jet propulsion]],<ref name="SmithAndCaron2010" /><ref name="Smith2013c"/> though this has been questioned by other authors.<ref name="Runnegar2011" /> The eyes of ''Nectocaris'' would have had a similar visual acuity to modern ''[[Nautilus]]'' (if they lacked a lens) or [[squid]] (if they did not).<ref name="Smith2013c"/> They are thought to have been freely-swimming [[nektonic]] organisms,<ref name=":1" /> that were either scavengers or predators on soft-bodied animals, using their tentacles to manipulate food items.<ref name="SmithAndCaron2010" />
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