纳米ct扫描显示的带刺果实:伪果(Pseudoanacardium peruvianum) gen. et comb。11月来自早渐新世秘鲁bel n植物区系

Q2 Agricultural and Biological Sciences

Acta Palaeobotanica Pub Date : 2018-06-01 DOI:10.2478/acpa-2018-0005

S. Manchester, B. Balmaki

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引用次数: 6

摘要

摘要对秘鲁渐新世腰果化石进行了重新研究。在胞室铸型周围的沉积模中发现了一层外刺状层，表明这些弥散物并不代表阿纳卡dium。来自纳米ct扫描标本的图像记录了一个独特的形态，不像任何水果或种子的阿纳卡德科。我们更详细地描述了这些化石的形态，并将其重新归类为一个已灭绝的属，Pseudoanacardium gen. nov.，其家族亲缘关系不确定。伪果(浆果)花冠。11月是bel carpoflora的杰出成员，该植物群还包括棕榈树、番荔枝科、大戟科、Humiriaceae、Leeaceae、Icacinaceae、芸香科和Vitaceae。

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Spiny fruits revealed by nano-CT scanning: Pseudoanacardium peruvianum (Berry) gen. et comb. nov. from the early Oligocene Belén flora of Peru

Abstract Fossil fruits formerly described as cashews from the Oligocene of Peru are reinvestigated based on the original specimens and newly collected materials. The recovery of an outer spiny layer, preserved in the sedimentary molds surrounding the locule casts, indicates that these disseminules do not represent Anacardium. Imagery from nano-CT scans of the specimens documents a distinctive morphology which does not resemble any fruits or seeds of Anacardiaceae. We describe the morphology in more detail and reassign the fossils to an extinct genus, Pseudoanacardium gen. nov., of uncertain familial affinity. Pseudoanacardium peruvianum (Berry) comb. nov. was a prominent member of the Belén carpoflora, which also included palms plus Annonaceae, Euphorbiaceae, Humiriaceae, Leeaceae, Icacinaceae, Rutaceae and Vitaceae.

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来源期刊

Acta Palaeobotanica Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： Acta Palaeobotanica is an international journal edited in English by the W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków, since 1960, which publishes original palaeobotanical, palynological, palaeoecological and palaeophytogeographical papers, monographs, review and discussion articles and book reviews. It is the only journal in the Central and Eastern Europe publishing papers from all fields of palaeobotany. The journal is published regularly in one volume per year, with two numbers.