Plant remains from the Middle–Late Jurassic Daohugou site of the Yanliao Biota in Inner Mongolia, China
A late Middle–early Late Jurassic fossil plant assemblage recently excavated from two Callovian– Oxfordian sites in the vicinity of the Daohugou fossil locality in eastern Inner Mongolia, China, was analysed in detail. The Daohugou fossil assemblage is part of the Callovian–Kimmeridgian Yanliao Biot...
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W. Szafer Institute of Botany, Polish Academy of Sciences
2017-12-01
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| Series: | Acta Palaeobotanica |
| Online Access: | https://acpa.botany.pl/Plant-remains-from-the-Middle-Late-Jurassic-nDaohugou-site-of-the-Yanliao-Biota-nin,118661,0,2.html |
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| author | CHRISTIAN POTT BAOYU JIANG |
| author_facet | CHRISTIAN POTT BAOYU JIANG |
| author_sort | CHRISTIAN POTT |
| collection | DOAJ |
| description | A late Middle–early Late Jurassic fossil plant assemblage recently excavated from two Callovian–
Oxfordian sites in the vicinity of the Daohugou fossil locality in eastern Inner Mongolia, China, was analysed in
detail. The Daohugou fossil assemblage is part of the Callovian–Kimmeridgian Yanliao Biota of north-eastern
China. Most major plant groups thriving at that time could be recognized. These include ferns, caytonialeans,
bennettites, ginkgophytes, czekanowskialeans and conifers. All fossils were identified and compared with species
from adjacent coeval floras. Considering additional material from three collections housed at major palaeontological
institutions in Beijing, Nanjing and Pingyi, and a recent account in a comprehensive book on
the Daohugou Biota, the diversity of the assemblage is completed by algae, mosses, lycophytes, sphenophytes
and putative cycads. The assemblage is dominated by tall-growing gymnosperms such as ginkgophytes, czekanowskialeans
and bennettites, while seed ferns, ferns and other water- or moisture-bound groups such as
algae, mosses, sphenophytes and lycophytes are represented by only very few fragmentary remains. The floral
composition underlines the Callovian–Kimmeridgian age of the Yanliao Biota. The Daohugou/Yanliao flora is
a typical member of the Middle to Late Jurassic Coniopteris-Phoenicopsis assemblage of north-eastern China,
differing from the Early Cretaceous Jehol flora. Both floras probably belong to the same cycle of volcanism and
sedimentation, although the Daohugou Bed is older than the Yixian Formation. The Yanliao fossil assemblage
is placed in a larger palaeo-phytogeographical context and its relationships with Middle–Late Jurassic floras
from north-eastern China, north-eastern and eastern Siberia and Japan are evaluated. |
| format | Article |
| id | doaj-art-1a518851cd1c47ef8dfd260e8504f1d4 |
| institution | DOAJ |
| issn | 2082-0259 |
| language | English |
| publishDate | 2017-12-01 |
| publisher | W. Szafer Institute of Botany, Polish Academy of Sciences |
| record_format | Article |
| series | Acta Palaeobotanica |
| spelling | doaj-art-1a518851cd1c47ef8dfd260e8504f1d42025-08-20T02:46:59ZengW. Szafer Institute of Botany, Polish Academy of SciencesActa Palaeobotanica2082-02592017-12-0157218522210.1515/acpa-2017-0012118661Plant remains from the Middle–Late Jurassic Daohugou site of the Yanliao Biota in Inner Mongolia, ChinaCHRISTIAN POTT0BAOYU JIANG1LWL-Museum of Natural History, Westphalian State Museum and Planetarium, Sentruper Straße 285, DE-48161 Münster, GermanySchool of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing 210046, ChinaA late Middle–early Late Jurassic fossil plant assemblage recently excavated from two Callovian– Oxfordian sites in the vicinity of the Daohugou fossil locality in eastern Inner Mongolia, China, was analysed in detail. The Daohugou fossil assemblage is part of the Callovian–Kimmeridgian Yanliao Biota of north-eastern China. Most major plant groups thriving at that time could be recognized. These include ferns, caytonialeans, bennettites, ginkgophytes, czekanowskialeans and conifers. All fossils were identified and compared with species from adjacent coeval floras. Considering additional material from three collections housed at major palaeontological institutions in Beijing, Nanjing and Pingyi, and a recent account in a comprehensive book on the Daohugou Biota, the diversity of the assemblage is completed by algae, mosses, lycophytes, sphenophytes and putative cycads. The assemblage is dominated by tall-growing gymnosperms such as ginkgophytes, czekanowskialeans and bennettites, while seed ferns, ferns and other water- or moisture-bound groups such as algae, mosses, sphenophytes and lycophytes are represented by only very few fragmentary remains. The floral composition underlines the Callovian–Kimmeridgian age of the Yanliao Biota. The Daohugou/Yanliao flora is a typical member of the Middle to Late Jurassic Coniopteris-Phoenicopsis assemblage of north-eastern China, differing from the Early Cretaceous Jehol flora. Both floras probably belong to the same cycle of volcanism and sedimentation, although the Daohugou Bed is older than the Yixian Formation. The Yanliao fossil assemblage is placed in a larger palaeo-phytogeographical context and its relationships with Middle–Late Jurassic floras from north-eastern China, north-eastern and eastern Siberia and Japan are evaluated.https://acpa.botany.pl/Plant-remains-from-the-Middle-Late-Jurassic-nDaohugou-site-of-the-Yanliao-Biota-nin,118661,0,2.html |
| spellingShingle | CHRISTIAN POTT BAOYU JIANG Plant remains from the Middle–Late Jurassic Daohugou site of the Yanliao Biota in Inner Mongolia, China Acta Palaeobotanica |
| title | Plant remains from the Middle–Late Jurassic
Daohugou site of the Yanliao Biota
in Inner Mongolia, China |
| title_full | Plant remains from the Middle–Late Jurassic
Daohugou site of the Yanliao Biota
in Inner Mongolia, China |
| title_fullStr | Plant remains from the Middle–Late Jurassic
Daohugou site of the Yanliao Biota
in Inner Mongolia, China |
| title_full_unstemmed | Plant remains from the Middle–Late Jurassic
Daohugou site of the Yanliao Biota
in Inner Mongolia, China |
| title_short | Plant remains from the Middle–Late Jurassic
Daohugou site of the Yanliao Biota
in Inner Mongolia, China |
| title_sort | plant remains from the middle late jurassic daohugou site of the yanliao biota in inner mongolia china |
| url | https://acpa.botany.pl/Plant-remains-from-the-Middle-Late-Jurassic-nDaohugou-site-of-the-Yanliao-Biota-nin,118661,0,2.html |
| work_keys_str_mv | AT christianpott plantremainsfromthemiddlelatejurassicdaohugousiteoftheyanliaobiotaininnermongoliachina AT baoyujiang plantremainsfromthemiddlelatejurassicdaohugousiteoftheyanliaobiotaininnermongoliachina |