A new Middle Triassic genus and species of Mylacridae (Blattodea) from China

Li, Zhu; Youchong, Hong; Yang, Ding

doi:10.11646/zootaxa.1660.1.4

Cited by 4 publications

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“…The upper part is composed of greyish green or red fine sandstone and siltstone, interbedded with greyish green or black shale with black oil-shale at the top. The Tongchuan Formation yields bivalves, spinicaudatans, ostracods, insects, tadpole shrimps, fish, reptiles, sporopollen and plants (IGCAGS, 1980; Wu, Liu & Li, 2001; Hong, 2007, 2009; Li, Hong & Yang, 2007; Sun & Hong, 2011), and has a total thickness of c. 596 m. The layers bearing the insect fauna are considered to be Ladinian in age while the Tongchuan Formation is assigned an Anisian – early Carnian age in the present paper (see below).…”

Section: Geological Settingmentioning

confidence: 99%

“…The Tongchuan Formation was established in the Qishuihe outcrop of Shaanxi Province, northwestern China, by IGCAGS (1980), yielding abundant fossils. The age of the Tongchuan Formation was traditionally considered to be either Middle Triassic or Middle–Late Triassic (IGCAGS, 1980; Wu, Liu & Li, 2001; Hong, 2007, 2009; Li, Hong & Yang, 2007; Sun & Hong, 2011). In this formation, both the bivalve and plant assemblages indicate a Middle Triassic age, and the sporopollen assemblage resembles that in the underlying Lower–Middle Triassic Ermaying Formation (IGCAGS, 1980).…”

Section: Stratigraphic Implicationsmentioning

confidence: 99%

“…The upper part of the Tongchuan Formation bearing the reptile Yonghesuchus sangbiensis was considered to be early Late Triassic in age (Wu, Liu & Li, 2001). Abundant insect fossils have been reported from the lower part of the Tongchuan Formation in the Qishuihe outcrop (IGCAGS, 1980; Hong, 2007, 2009; Li, Hong & Yang, 2007; Sun & Hong, 2011) and were regarded as Ladinian by Hong (2007, 2009). The lower part of the Tongchuan Formation in Shanxi Province was dated as 243.1±3.9 Ma and the upper part as 234.6±6.5 Ma, indicating a Middle – early Late Triassic age for the whole formation (Anisian – early Carnian (Cohen et al 2013; Liu, Li & Li, 2013)), which could be supported by the above palaeontological evidence.…”

Section: Stratigraphic Implicationsmentioning

confidence: 99%

“…

Figure 1. Fossil locality in the Qishuihe outcrop of Jinsuoguan Town, Tongchuan City, Shaanxi Province, China. (a) Geographical sketch map of Jinsuoguan Town; (b) photograph of the Qishuihe outcrop yielding the fossil insects; (c) stratigraphic column of the Tongchuan Formation (based on the data of IGCAGS, 1980; Li, Hong & Yang, 2007; Liu, Li & Li, 2013). …”

Section: Geological Settingmentioning

confidence: 99%

“…Although abundant insect fossils have been discovered in the Middle–Upper Triassic strata of China (Lin, 1978, 1992; IGCAGS, 1980; Lin & Mou, 1989; Zhang, 1996; Hong, 2007, 2009; Li, Hong & Yang, 2007; Sun & Hong, 2011), dragonflies have not previously been recorded from these assemblages. Qishuihe is a very important locality in Shaanxi Province, northwestern China, from which seven orders of insects (Blattaria, Coleoptera, Glosselytrodea, Hemiptera, Mecoptera, Miomoptera and Orthoptera) have been reported in the Middle–Upper Triassic Tongchuan Formation (IGCAGS, 1980; Hong, 2007, 2009; Li, Hong & Yang, 2007; Sun & Hong, 2011). Very recently, about 30 families in 12 orders were unearthed at this locality, adding to the insect diversity: here we describe the first Chinese Triassic ‘Protodonate’ from the Tongchuan Formation of the Qishuihe outcrop.…”

Section: Introductionmentioning

confidence: 99%

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The first Triassic ‘Protodonatan’ (Zygophlebiidae) from China: stratigraphical implications

et al. 2016

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The clade Triadophlebioptera within the Odonatoptera greatly diversified and became widely distributed worldwide during the Triassic. Although abundant insect fossils have been reported from the Triassic of China, no Triassic dragonflies have been recorded. In this paper,Zygophlebia tongchuanensissp. nov., the first species of Zygophlebiidae discovered outside the Madygen Formation of Kyrgyzstan, is described from the Middle–Upper Triassic Tongchuan Formation of Shaanxi Province, northwestern China. The discovery extends the distribution of the family Zygophlebiidae in Asia, indicating a high diversity of Triadophlebioptera during Middle–Late Triassic times. Combined with the palaeontological and geochronological evidence, the age of the Tongchuan Formation is considered to be Anisian – Early Carnian, and the insect-bearing layers are considered to be Ladinian.

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Section: Geological Settingmentioning

confidence: 99%

Section: Stratigraphic Implicationsmentioning

confidence: 99%

Section: Stratigraphic Implicationsmentioning

confidence: 99%

“…

Section: Geological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The first Triassic ‘Protodonatan’ (Zygophlebiidae) from China: stratigraphical implications

et al. 2016

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A review of Triassic insects in China

Zhang

Zheng

et al. 2021

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Studies of Triassic insects in China began in 1956, and so far, a total of 89 genera and 109 species have been found from the Triassic of China. The fossil records are from 17 provinces (or regions) in China are assigned to 11 orders except for two genera and species considered incertae sedis in Insecta. These Chinese Triassic insects including one Early Triassic, 53 Middle Triassic and 55 Late Triassic species are briefly reviewed in taxonomy and distribution, and listed here with detailed taxonomic and stratigraphic information. The Middle Triassic Tongchuan Entomofauna and Late Triassic Toksun Entomofauna are introduced much detailed from the perspectives of composition and taxonomy. Existing data indicate that the Chinese Triassic entomofauna is dominated by Hemiptera, Mecoptera and Coleoptera; the Chinese Early Triassic insects are only known from Fuyuan in Yunnan Province, Middle Triassic ones mainly known from northern China and sporadically from Guizhou Province, southern China, and Late Triassic ones widely seen in both northern and southern China; and the Middle and Late Triassic entomofaunas are similar in abundance but show a pattern of “more in northern China than in southern China”.

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Changes to the Fossil Record of Insects through Fifteen Years of Discovery

2015

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The first and last occurrences of hexapod families in the fossil record are compiled from publications up to end-2009. The major features of these data are compared with those of previous datasets (1993 and 1994). About a third of families (>400) are new to the fossil record since 1994, over half of the earlier, existing families have experienced changes in their known stratigraphic range and only about ten percent have unchanged ranges. Despite these significant additions to knowledge, the broad pattern of described richness through time remains similar, with described richness increasing steadily through geological history and a shift in dominant taxa, from Palaeoptera and Polyneoptera to Paraneoptera and Holometabola, after the Palaeozoic. However, after detrending, described richness is not well correlated with the earlier datasets, indicating significant changes in shorter-term patterns. There is reduced Palaeozoic richness, peaking at a different time, and a less pronounced Permian decline. A pronounced Triassic peak and decline is shown, and the plateau from the mid Early Cretaceous to the end of the period remains, albeit at substantially higher richness compared to earlier datasets. Origination and extinction rates are broadly similar to before, with a broad decline in both through time but episodic peaks, including end-Permian turnover. Origination more consistently exceeds extinction compared to previous datasets and exceptions are mainly in the Palaeozoic. These changes suggest that some inferences about causal mechanisms in insect macroevolution are likely to differ as well.

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A new Middle Triassic genus and species of Mylacridae (Blattodea) from China

Cited by 4 publications

References 0 publications

The first Triassic ‘Protodonatan’ (Zygophlebiidae) from China: stratigraphical implications

The first Triassic ‘Protodonatan’ (Zygophlebiidae) from China: stratigraphical implications

A review of Triassic insects in China

Changes to the Fossil Record of Insects through Fifteen Years of Discovery

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