English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Fossil remains of  Dryopterites  fern foliage were collected from the Lower Cretaceous Chijinbao Formation in the Zhongkouzi Basin, Beishan area, Northwest China. A new species,  Dryopterites beishanensis  Ren and Sun sp. nov., is described on the basis of gross morphological structure and details of reproductive characters. Fronds are tripinnate, the main rachis is broad, and pinnules are small, oval or long ovate, and attached at narrow angles to the rachis, with apices obtuse. Sporangia are rounded or rounded-reniform and borne on the lateral vein, with one to two pairs in number. Spores are suborbicular or oval and monolete, with laesura 28 to 41 µm long. The extine is not smooth. The new fossils represent the first record of  Dryopterites  from the Chijinbao Formation. Additionally, according to different fossil records, the genus  Dryopterites  most likely originated in East Asia in the Early Cretaceous (Hauterivian to Barremian age). The new fossil provides new evidence on concerning the origin of  Dryopterites .

New species of fossil Dryopterites from the Lower Cretaceous in the Zhongkouzi Basin, Beishan area, Northwest China, and its geological significance