Manta-like planktivorous sharks in Late Cretaceous oceans

doi:10.1126/science.abc1490

GSTDTAP > 气候变化

DOI	10.1126/science.abc1490
	Manta-like planktivorous sharks in Late Cretaceous oceans
	Romain Vullo; Eberhard Frey; Christina Ifrim; Margarito A. González González; Eva S. Stinnesbeck; Wolfgang Stinnesbeck
	2021-03-19
发表期刊	Science
出版年	2021
英文摘要	Modern sharks occupy marine ecosystems across the world but display little morphological diversity, being mostly streamlined predators. Vullo et al. describe a new species of shark from the late Cretaceous that shows that the lack of current variation is not due to limited morphological “exploration” in the past. Specifically, Aquilolamna milarcae displays many features similar to modern manta rays, notably long, slender fins and a mouth seemingly adapted to filter feeding, suggesting that it was planktivorous. This finding indicates both that elasmobranchs evolutionarily experimented with other forms and that the planktivorous “soarers” emerged in this group at least 30 million years earlier than previously recognized. Science , this issue p. [1253][1] The ecomorphological diversity of extinct elasmobranchs is incompletely known. Here, we describe Aquilolamna milarcae , a bizarre probable planktivorous shark from early Late Cretaceous open marine deposits in Mexico. Aquilolamna , tentatively assigned to Lamniformes, is characterized by hypertrophied, slender pectoral fins. This previously unknown body plan represents an unexpected evolutionary experimentation with underwater flight among sharks, more than 30 million years before the rise of manta and devil rays (Mobulidae), and shows that winglike pectoral fins have evolved independently in two distantly related clades of filter-feeding elasmobranchs. This newly described group of highly specialized long-winged sharks (Aquilolamnidae) displays an aquilopelagic-like ecomorphotype and may have occupied, in late Mesozoic seas, the ecological niche filled by mobulids and other batoids after the Cretaceous–Paleogene boundary. [1]: /lookup/doi/10.1126/science.abc1490
领域	气候变化 ; 资源环境
URL	查看原文
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/319938
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Romain Vullo,Eberhard Frey,Christina Ifrim,et al. Manta-like planktivorous sharks in Late Cretaceous oceans[J]. Science,2021.
APA	Romain Vullo,Eberhard Frey,Christina Ifrim,Margarito A. González González,Eva S. Stinnesbeck,&Wolfgang Stinnesbeck.(2021).Manta-like planktivorous sharks in Late Cretaceous oceans.Science.
MLA	Romain Vullo,et al."Manta-like planktivorous sharks in Late Cretaceous oceans".Science (2021).