Memory of direction of locomotion in sea urchins: effects of nerves on direction and activity of tube feet
Sign Up to like & getrecommendations! Published in 2018 at "Marine Biology"
DOI: 10.1007/s00227-018-3342-y
Abstract: Memory and learning in invertebrates with decentralized nervous systems is poorly understood and sea urchins are no exception. Following up on previous studies of locomotory direction in sea urchins, the regular sea urchin, Hemicentrotus pulcherrimus… read more here.
Keywords: direction; locomotion; tube feet; sea urchins ... See more keywords
An edrioasteroid from the Silurian Herefordshire Lagerstätte of England reveals the nature of the water vascular system in an extinct echinoderm
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Royal Society B: Biological Sciences"
DOI: 10.1098/rspb.2017.1189
Abstract: Echinoderms are unique in having a water vascular system with tube feet, which perform a variety of functions in living forms. Here, we report the first example of preserved tube feet in an extinct group… read more here.
Keywords: vascular system; herefordshire lagerst; tube feet; water vascular ... See more keywords
How Striations of Ophiuroid and Asteroid Trace Fossils were Produced—Observations of Tube-Feet Movement in Living Ophiuroids and Asteroids
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DOI: 10.2517/2016pr003
Abstract: Abstract. To clarify the process of producing the striations in the trace fossil Asteriacites, we observed the behavior of living ophiuroids and asteroids in aquariums. When ophiuroids stopped crawling, they buried themselves shallowly in the… read more here.
Keywords: living ophiuroids; movement; tube feet; ophiuroids asteroids ... See more keywords