Highlights
- Four echinoderm body plans were established in the Early Paleozoic
- Body-plan distinctiveness was amplified by extinction and confounded by convergence
- Disparity increased through the Cambrian and plateaued in the Ordovician
- Higher-order features could be altered through time, enabling later innovation
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Origin and Early Evolution of Echinoderms | Annual Reviews
The Cambrian fossil record provides valuable insights into the origin and early evolution of echinoderms over half a billion years ago. Cambrian echinoderms were morphologically diverse, with several extinct groups exhibiting character combinations that distinguish them from living …
Evolution: Mapping Out Early Echinoderms: Current …
2020年7月6日 · The rich early fossil record of the echinoderms reveals surprisingly dynamic patterns of body plan evolution and suggests that …
- 作者: Graham E. Budd
- Publish Year: 2020
discoveries related to the origin, diversity, phylogeny and ecology of early echinoderms, we 69 provide a more complete picture of the group’s evolutionary history half a billion years ago.
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The Cambrian fossil record provides valuable insights into the origin and early evolution of echinoderms over half a billion years ago. Cambrian echinoderms were morphologically …
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the origins of the echinoderms with a morphometric study of their early fossil record that dates back to approximately 520 million years ago, right in the furnace of the Cambrian explosion. …
Origin and Early Evolution of Echinoderms | Semantic Scholar
2024年1月2日 · Echinoderms are a major group (phylum) of invertebrate animals with a rich fossil record stretching back to the Cambrian period, approximately 518 million years ago. …
we compiled an extensive database of early Paleozoic echino-derm morphology to test hypotheses regarding the patterns of morphological diversification and evolutionary …
Origin and Early Evolution of Echinoderms | Request PDF
2024年1月2日 · Echinoderms are a major group (phylum) of invertebrate animals with a rich fossil record stretching back to the Cambrian period, approximately 518 million years ago.