| Title | A new genus and species of eurypterid (Chelicerata, Eurypterida) from the Lower Devonian Xiaxishancun Formation of Yunnan, southwestern China |
| Authors | Wang, Jiashu Liu, Lu Xue, Jinzhuang Lamsdell, James C. Selden, Paul A. |
| Affiliation | Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, 5 Yiheyuan Rd, Beijing 100871, Peoples R China Beijing Museum Nat Hist, Beijing 100050, Peoples R China West Virginia Univ, Dept Geol & Geog, 98 Beechurst Ave, Morgantown, WV 26506 USA Univ Kansas, Dept Geol, 1414 Naismith Dr, Lawrence, KS 66045 USA Nat Hist Museum, Cromwell Rd, London SW7 5BD, England |
| Keywords | ARTHROPODA-CHELICERATA CLAW |
| Issue Date | Dec-2022 |
| Publisher | GEOBIOS |
| Abstract | Eurypterids constituted an important component of Paleozoic marine ecosystems, but their fossil record has been mainly reported from North America and Europe, and the evolution of this group in other regions such as East Asia remains poorly understood. A new eurypterid, Malongia mirabilis nov. gen., nov. sp., is described from the Lower Devonian (Lochkovian) Xiaxishancun Formation of Qujing, Yunnan, southwestern China. The holotype shows a ventral prosoma with appendages II-VI and part of the opisthosoma. The characters indicating a dolichopterid affinity of the new taxon include: metastoma anterior cordate and basally truncated; appendage III bearing multiple enlarged spines; appendage V nonspiniferous; long appendage VI with expanded distal podomere and narrow triangular VI-7a; subrhomboidal coxa of appendage VI with a rounded principal tooth. Malongia nov. gen. is the fourth genus described within the Dolichopteridae Kjellesvig-Waering and Stormer, 1952, other members of which are Dolichopterus Hall, 1859, Clarkeipterus Kjellesvig-Waering, 1966, and Ruedemannipterus KjellesvigWaering, 1966; it represents the only record of this family in South China. (c) 2022 Elsevier Masson SAS. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/667751 |
| ISSN | 0016-6995 |
| DOI | 10.1016/j.geobios.2022.09.001 |
| Indexed | SCI(E) |
| Appears in Collections: | 地球与空间科学学院 造山带与地壳演化教育部重点实验室 |
