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您的检索式：作者名="Stephen Pates"
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| 1 | Rapid growth in a large Cambrian apex predator显示文摘Despite the importance of ontogenetic data on early diverging euarthropods to our understanding of the ecology and evolution of past life,the data are distinctly lacking,as reconstructing life histories of fossil animals is often challenging.Here we report the growth trajectory of frontal appendages of the apex predator Amplectobelua symbrachiata,one of the most common radiodont arthropods from the early Cambrian Chengjiang biota(c.520 Ma)of China.Analysis of 432 specimens(9.1-137.1 mm length;1.3-25.6 mm height)reveals that appendages grew isometrically,with an estimated maximum size of the whole animal of c.90 cm.Individuals grew rapidly compared to extant arthropods,as assessed using the electronic length-frequency analysis(ELEFAN)approach.Therefore,we show that the Cambrian apex predator A.symbrachiata was an extremely fast-growing arthropod,with an unusual life history strategy that formed as part of the escalatory‘arms race’that shaped the Cambrian explosion over 500 Ma. | 吴雨 Stephen Pates Daniel Paulyi 张兴亮 傅东静 | 2024 | National Science Review2024，11，3： | 0 |
| 2 | Addressing the Chengjiang conundrum: A palaeoecological view on the rarity of hurdiid radiodonts in this most diverse early Cambrian Lagerstatte显示文摘Over one hundred arthropod fossil species have been described from the famous Chengjiang Lagerst?tte(South China, Cambrian Stage 3, ca. 518 Ma) including a diverse assemblage of radiodonts–a group containing Anomalocaris and its relatives. These iconic stem-group euarthropods include some of the largest animals of the time, and some are known from hundreds of specimens. A longstanding conundrum has been the rarity or absence of hurdiids from Cambrian Series 2 Lagerst?tten like Chengjiang. This is because radiodonts are generally common in such deposits and the oldest radiodont ever discovered is a hurdiid. Furthermore, this family displays the widest geographic and temporal ranges of all radiodont families, and the highest diversity. Here we document the first hurdiid frontal appendages from Chengjiang, which display unique features within the family and may provide insights for understanding the character evolution of hurdiid appendages. The palaeoenvironmental distribution of hurdiids suggests that the rarity of hurdiids in Chengjiang may be due to a preference for deeper water environments,and the later success of this family from the Wuliuan onwards may relate to their ability to tolerate cooler water temperatures than other radiodont families. The palaeogeographical, palaeoenvironmental, and stratigraphical patterns observed in hurdiids maybe caused in part by the limited distributions of Konservat-Lagerst?tten in the Cambrian as well. | Yu Wu Stephen Pates Jiaxin Ma Weiliang Lin Yuheng Wu Xingliang Zhang Dongjing Fu | 2022 | Geoscience Frontiers2022，13，6： | 0 |
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