Results 11 to 20 of about 69,323 (287)
Frontiers in Earth Science, 2022 The Cambrian source rock is a key indicator that will guide future hydrocarbon explorations in ultra-deep strata. Despite its importance, the characteristics of paleotopography on the Precambrian basement and the distribution of source rocks above it ...
Haowei Yuan +10 more
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A new euarthropod from the Cambrian Stage 4 Guanshan Biota of South China [PDF]
Acta Palaeontologica Polonica, 2022 A new small euarthropod Astutuscaris bispinifer gen. et sp. nov. is described from the early Cambrian Stage 4 Guanshan Biota in Yunnan, China. This new euarthropod possesses a wide head shield, a pair of possible eyes, paired frontalmost appendages ...
DE-GUANG JIAO, KUN-SHENG DU
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Open Geosciences, 2021 The black rock series in the Qiongzhusi Formation contains important geochemical information about the early Cambrian tectonic and ecological environment of the southwestern Yangtze Block.
Liu Hao +8 more
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A possible case of inverted lifestyle in a new bivalved arthropod from the Burgess Shale [PDF]
Royal Society Open Science, 2019 The origin of the arthropod carapace, an enlargement of cephalic tergites, can be traced back to the Cambrian period. However, its disparity and evolution are still not fully understood.
Alejandro Izquierdo-López +1 more
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Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics [PDF]
Acta Palaeontologica Polonica, 2021 Cambrian Series 2 shelly fossils from thick carbonate successions in East Antarctica have received limited systematic treatment through the 20th century.
Thomas M. Claybourn +5 more
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A modified trap design for sampling subterranean habitats for central Texas Eurycea salamanders [PDF]
Subterranean BiologyIn this paper, we describe modifications to a sampling technique for surface, stream-dwelling salamanders for use in subterranean settings. Leaf litter bags are an effective and commonly used trap for salamanders, and their construction purposefully ...
Ryan M. Jones +3 more
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New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China [PDF]
Acta Palaeontologica Polonica, 2020 The fuxianhuiid arthropod Guangweicaris spinatus, from the lower Cambrian (Series 2, Stage 4), Guanshan Biota (Wulongqing Member, Canglangpu Formation), located in the vicinity of Kunming (Yunnan Province, southwest China), is redescribed based on new ...
Hong Chen +4 more
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On the Topology of the Cambrian Semilattices [PDF]
, 2012 For an arbitrary Coxeter group $W$, David Speyer and Nathan Reading defined Cambrian semilattices $C_{\gamma}$ as semilattice quotients of the weak order on $W$ induced by certain semilattice homomorphisms.
Kallipoliti, Myrto, Mühle, Henri
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Sedimentary characteristics and development model of Cambrian gypsum-salt rocks, Tarim Basin
Shiyou shiyan dizhi, 2021 The Cambrian gypsum-salt rocks in the Tarim Basin are key geological elements to the pre-salt play typical marine evaporites, yet little attention has been paid to this set of evaporites.
Qi FAN +5 more
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Journal of the European Mathematical Society, 2009 For a finite Coxeter group W and a Coxeter element c of W, the
Nathan Reading, David E. Speyer
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