阿根廷中三叠世一新种(裸子蕨科)

IF 1.2 4区地球科学 Q3 PALEONTOLOGY

Alcheringa Pub Date : 1999-01-01 DOI:10.1080/03115519908619515

A. Zamuner, A. Artabe, D. Ganuza

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引用次数: 14

摘要

阿根廷圣胡安地区中三叠统Cortaderita组发现一种新的壳类植物——Scytophyllum bonettiae sp. nov.。新物种的特点是具有中到小的单壁，不壁，披针形，双凝聚的叶片，具有自由的两羽状脉纹，在轴上有肿块。恢复的标本显示幼年到成年的叶子。这一新分类群与其他物种一起，是阿根廷西部中三叠世晚期-上三叠世早期陆生植物群的特征。

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A new peltasperm (Gymnospermopsida) from the Middle Triassic of Argentina

A new peltasperm, Scytophyllum bonettiae sp. nov., is described from the Middle Triassic Cortaderita Formation, San Juan, Argentina. The new species is characterised by having medium to small monopinnate, imparipinnate, lanceolate, bicoherent fronds with a free bipinnate pattern of venation, and lumps on the rachis. Recovered specimens display juvenile to adult foliage. The new taxon, together with other species, characteises late Middle Triassic-early Upper Triassic terrestrial flora from western Argentina.

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来源期刊

Alcheringa 地学-古生物学

CiteScore

2.60

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： Alcheringa : An Australasian Journal of Palaeontology is the official journal of the Australasian Palaeontologists. Alcheringa covers all aspects of palaeontology and its ramifications into the earth and biological sciences, including: Taxonomy- Biostratigraphy- Micropalaeontology- Vertebrate palaeontology- Palaeobotany- Palynology- Palaeobiology- Palaeoanatomy- Palaeoecology- Biostratinomy- Biogeography- Chronobiology- Biogeochemistry- Palichnology. Review articles are welcome, and may be solicited from time to time. Thematic issues are also possible. Emphasis is placed on high quality and informative illustration, in both line drawings and photographs. Papers of general significance may receive preference over those of more local interest.