Fossil echinoderms—including the edrioasteroid ... Independent comparisons of their morphology and ecology during the Cambrian and Ordovician radiations demonstrates that anatomical novelty ...

The hypothetical ancestral echinoderm is at the center of the graph with evolutionary pathways radiating outward during and following the Cambrian Explosion to establish the major echinoderm body ...

All animal evolution for the last half billion years has come from tinkering with these Cambrian body plans. Then, between about 570 and 530 million years ago, another burst of diversification ...

have called this early Cambrian time the “Wormworld.” It was no place for Ediacarans. An enduring designPhylum Echinodermata: Like more familiar echinoderms such as sea stars and sea urchins ...

The diversity and abundance of echinoderm fossils is reflected in the Museum's large, world-class collection. Fossil echinoderms are numerous, due in part to the fantastic preservation potential of ...

Learn more about a time period marked by an intense burst of evolution. 3 min read The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known.

These fossils, dated to approximately 535 million years ago, were found in the early Cambrian Kuanchuanpu biota in southern Shaanxi Province, China. The research, led by Professor Zhang Huaqiao ...