Oreocharis xieyongii, an unusual new species of Gesneriaceae from western Hunan, China

AbstractSome rare microscopic cycloneuralians are present in the Cambrian of South China, represented by Eopriapulites and Eokinorhynchus (both early Cambrian), fossil embryos of Markuelia (middle to late Cambrian), and palaeoscolecids (early to late Cambrian). Among them, palaeoscolecids are relatively diverse and abundant. Here, we describe new material of three-dimensionally phosphatized and microscopic cycloneuralians from the Paibian Stage of Wangcun Lagerstätte, western Hunan, South China. New material includes fossil embryos assignable to Markuelia sp., two other types of fossil embryos, and three species of palaeoscolecids, including Dispinoscolex decorus Duan, Dong, and Donoghue, 2012, Schistoscolex hunanensis Duan, Dong, and Donoghue, 2012, and Austroscolex sinensis new species. The palaeoscolecid fragments differ mainly in size and armor of the trunk annuli. Since Eokinorhynchus and Eopriapulites occurred the earliest among the Cambrian cycloneuralians, it is proposed here that: (1) cycloneuralians originated in the Cambrian Fortunian small shelly faunas rather than in the early Cambrian macrobenthos, (2) ancestral cycloneuralians may have simple trunk armor, and (3) Eopriapulites represents an ancestral cycloneuralian.

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Middle Cambrian through lowermost Ordovician conodonts from Hunan, South China

Journal of Paleontology ◽

10.1017/jpa.2015.43 ◽

2017 ◽

Vol 91 (S73) ◽

pp. 1-89 ◽

Cited By ~ 10

Author(s):

Xi-ping Dong ◽

Huaqiao Zhang

Keyword(s):

New Species ◽

South China ◽

Total Mass ◽

Histological Investigation ◽

Middle Cambrian ◽

Upper Cambrian ◽

Western Hunan

AbstractSince 1986, samples with a total mass of more than 14,000 kg, mainly from three key sections in western Hunan, South China, have been processed for conodonts. Previous work mainly focused on biostratigraphy, but the taxonomy has been performed only on the faunas of the middle Cambrian. Described herein are conodonts of the upper Cambrian (Furongian Series) through lowermost Ordovician from Hunan, South China. Conodonts of the middle Cambrian are redescribed, based on material that has been recovered for more than three decades. The fauna consists of 82 species belonging to 36 genera. Newly established genera areLugnathusn. gen.,Miaognathusn. gen.,Millerodontusn. gen.,Tujiagnathusn. gen.,Wangcunellan. gen. andWangcunognathusn. gen. New species areCoelocerodontus hunanensisn. sp.,Furnishina wangcunensisn. sp.,Laiwugnathus hunanensisn. sp.,Laiwugnathus transitansn. sp.,Lugnathus hunanensisn. gen. n. sp.,Miaognathus multicostatusn. gen. n. sp.,Millerodontus intermediusn. gen. n. sp.,Prosagittodontus compressusn. sp.,Tujiagnathus gracilisn. gen. n. sp.,Wangcunella conicusn. gen. n. sp.,Wangcunognathus elegansn. gen. n. sp.,Westergaardodina dimorphan. sp.,Westergaardodina gigantean. sp., andWestergaardodina solan. sp. The taxonomy of some conodont genera is revised. In the light of histological investigation, genera are assigned to euconodonts, paraconodonts, or protoconodonts. The 13 conodont zones previously proposed in the middle Cambrian through lowermost Ordovician remain the same, but taxa within these conodont zones are documented more clearly because of the revised taxonomy proposed herein.

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Two new species of Vestrogothia (Phosphatocopina, Crustacea) of Orsten-type preservation from the Upper Cambrian in western Hunan, South China

Science in China Series D Earth Sciences ◽

10.1007/s11430-009-0069-0 ◽

2009 ◽

Vol 52 (6) ◽

pp. 784-796 ◽

Cited By ~ 11

Author(s):

HuaQiao Zhang ◽

XiPing Dong

Keyword(s):

New Species ◽

South China ◽

Upper Cambrian ◽

Two New Species ◽

Western Hunan ◽

Type Preservation

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Late Cambrian Radiolaria from Hunan, China

Journal of Paleontology ◽

10.1017/s002233600003571x ◽

1997 ◽

Vol 71 (5) ◽

pp. 753-758 ◽

Cited By ~ 17

Author(s):

Dong Xiping ◽

Andrew H. Knoll ◽

Jere H. Lipps

Keyword(s):

New Species ◽

Upper Cambrian ◽

Late Cambrian ◽

The Family ◽

Western Hunan ◽

Silica Cycle ◽

A New Species

Well-preserved polycystine radiolarians, representing a new species in the family Entactiniidae, were recovered from subtidal micrites and bioclastic micrites of the Upper Cambrian (Glyptagnostus reticulatustrilobite zone) Bitiao Formation, western Hunan, China. Confirming earlier, questionable reports of Cambrian Radiolaria, these fossils place the first appearance of the group somewhat before its Ordovician emergence as a principal constituent of the oceanic silica cycle, but long after the Proterozoic diversification of protists.

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Contribution to the knowledge of subterranean ground beetles from eastern Wuling Mountains, China (Coleoptera: Carabidae: Trechinae)

Zootaxa ◽

10.11646/zootaxa.4926.4.3 ◽

2021 ◽

Vol 4926 (4) ◽

pp. 521-534

Author(s):

MINGYI TIAN ◽

XINGLONG HUANG ◽

CHENLIANG LI

Keyword(s):

New Species ◽

Ground Beetles ◽

Hubei Province ◽

Hunan Province ◽

New Genera ◽

Limestone Cave ◽

Western Hunan ◽

Three New Species

Two new genera and three new species of troglobitic trechine beetles are described and illustrated from the eastern part of Wuling Mountains: Xiangxius jiangi n. gen., n. sp. and Guizhaphaenopsodes solidior n. gen., n. sp. from the limestone cave Tangle Dong (Jishou, western Hunan Province); Sinotroglodytes hefengensis n. sp. from the limestone cave Qizimei Dong (Hefeng, southwestern Hubei Province). Xiangxius jiangi is a highly modified cave-adapted beetle with elongate body and appendages, recognized by its peculiar elytral shape and remarkable dorsal and marginal umbilicate pores of elytra. Guizhaphaenopsodes solidior is peculiar for its stout body, robust antennae and pigmented forebody, antennae and legs though it shares several generic important characteristics with the genus Guizhaphaenops Vigna Taglianti, 1997. Sinotroglodytes hefengensis has an elongated and parallel-sided head.

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Lysimachia xiangxiensis (Primulaceae), a new species from limestone area in Hunan Province, central China

PhytoKeys ◽

10.3897/phytokeys.140.47995 ◽

2020 ◽

Vol 140 ◽

pp. 23-32

Author(s):

Cun Mou ◽

Yu Wu ◽

Liang Xiang ◽

Xiao-Mei Xiang ◽

Dai-Gui Zhang

Keyword(s):

Phylogenetic Analysis ◽

New Species ◽

Sequence Data ◽

Central China ◽

Hunan Province ◽

Molecular Phylogenetic Analysis ◽

Its Sequence ◽

Molecular Phylogenetic ◽

Western Hunan ◽

A New Species

A new species of Lysimachia, L. xiangxiensis (Primulaceae), is described and illustrated from western Hunan, central China. The species is similar to L. melampyroides in plant densely strigillose, leaves subglabrous adaxially, and flowers usually solitary in axils of upper leaves, but differs by the succulent leaves, the creeping or ascending stems 15–25 cm long, and the suborbicular to broadly elliptic corolla lobes. This new species is also supported by a molecular phylogenetic analysis of some Lysimachia species based on ITS sequence data.

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