ArticleProceedings. Biological sciences2013
Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan.
Article in Proceedings. Biological sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 44 citations in OpenAlex.
- Article
- Cambrian edrioasteroid reveals new mechanism for secondary reduction of the skeleton in echinoderms.Proceedings. Biological sciences · 2022Article
- Morphological volatility precedes ecological innovation in early echinoderms.Nature ecology & evolution · 2022Article
- Multiple paedomorphic lineages of soft-substrate burrowing invertebrates: parallels in the origin of Xenocratena and Xenoturbella.PloS one · 2020Article
- A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria.Nature communications · 2019Article
- An edrioasteroid from the Silurian Herefordshire Lagerstätte of England reveals the nature of the water vascular system in an extinct echinoderm.Proceedings. Biological sciences · 2017Article
- A newly identified left-right asymmetry in larval sea urchins.Royal Society open science · 2016Article
- Oral region homologies in paleozoic crinoids and other plesiomorphic pentaradial echinoderms.PloS one · 2013Article
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2 authors at 2 institutions in 2 countries.
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Abstract
Echinoderms are unique among animal phyla in having a pentaradial body plan, and their fossil record provides critical data on how this novel organization came about by revealing intermediate stages. Here, we report a spiral-plated animal from the early Cambrian of Morocco that is the most primitive pentaradial echinoderm yet discovered. It is intermediate between helicoplacoids (a bizarre group of spiral-bodied echinoderms) and crown-group pentaradiate echinoderms. By filling an important gap, this fossil reveals the common pattern that underpins the body plans of the two major echinoderm clades (pelmatozoans and eleutherozoans), showing that differential growth played an important role in their divergence. It also adds to the striking disparity of novel body plans appearing in the Cambrian explosion.
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