Haijun Song

Sep 30, 2023 | mdpi.com | Zhou Yao |Libing Zhang |Ting Wu |Haijun Song

This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticleby 1, 2,3,*, 2,*, 2 and 2,3 1School of Mechanical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China2College of Information Science and Engineering, Jiaxing University, Jiaxing 314001, China3Key Laboratory of Medical Electronics and Digital Health of Zhejiang Province, Jiaxing University, Jiaxing 314001, China*Authors to whom correspondence should be addressed.

Sep 6, 2023 | frontiersin.org | Univ Lyon |Jurassica Museum |Universidad de Zaragoza |Haijun Song

Introduction The Early Ordovician represents a critical interval in the diversification of echinoderms, with the transition from low diversity, relatively cosmopolitan assemblages dominated by eocrinoids, glyptocystitid rhombiferans, and stylophorans (Furongian–mid Tremadocian), to more diverse faunas (late Tremadocian and onwards) characterised by the onset of new classes, typical of Sepkoski’s Palaeozoic Evolutionary Fauna (e.g., asteroids, crinoids, diploporitans, and ophiuroids) (Sumrall...