Spatio-temporal evolution of ocean redox and nitrogen cycling in the early Cambrian Yangtze ocean
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2020.119803
Abstract: Abstract The early Cambrian was a critical interval for the Earth system, during which a rise in oceanic and atmospheric oxygen levels coincided with the rapid diversification of metazoans. A variety of contrasting models have… read more here.
Keywords: ocean; evolution; redox; early cambrian ... See more keywords
Pyritized preservation of chancelloriids from the Cambrian Stage 3 of South China and implications for biomineralization
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DOI: 10.1016/j.geobios.2021.06.001
Abstract: Abstract The enigmatic Cambrian animal chancelloriids were discovered in a wide range of taphonomic settings; however, preservation of biomineralized sclerite microstructure was solely known from secondarily phosphatized skeletal remains. Here, we investigate a uniquely pyritized… read more here.
Keywords: preservation chancelloriids; south china; stage south; pyritized preservation ... See more keywords
Paleo-environmental variation and its control on organic matter enrichment of black shales from shallow shelf to slope regions on the Upper Yangtze Platform during Cambrian Stage 3
Sign Up to like & getrecommendations! Published in 2020 at "Palaeogeography, Palaeoclimatology, Palaeoecology"
DOI: 10.1016/j.palaeo.2020.109653
Abstract: Abstract To understand the evolution of oceanic redox conditions and organic matter (OM) accumulation in the shelf and slope regions of the Upper Yangtze Platform during Cambrian Stage 3, high-resolution geochemical data were obtained from… read more here.
Keywords: shelf slope; slope regions; shallow shelf; cambrian stage ... See more keywords
Soft part preservation in hyolithids from the lower Cambrian (Stage 4) Guanshan Biota of South China and its implications
Sign Up to like & getrecommendations! Published in 2020 at "Palaeogeography, Palaeoclimatology, Palaeoecology"
DOI: 10.1016/j.palaeo.2020.110079
Abstract: Abstract Hyoliths, known globally from the Cambrian to the Permian are generally recognized as early lophotrochozoan animals of uncertain phylogenetic position. The calcareous exoskeleton of hyolithids, one of the two subgroups of hyoliths, consist of… read more here.
Keywords: south china; guanshan biota; soft part; part preservation ... See more keywords
New evolutionary and ecological advances in deciphering the Cambrian explosion of animal life
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Paleontology"
DOI: 10.1017/jpa.2017.140
Abstract: The Cambrian explosion represents the most profound animal diversification event in Earth history. This astonishing evolutionary milieu produced arthropods with complex compound eyes (Paterson et al., 2011), burrowing worms (Mángano and Buatois, 2017), and a… read more here.
Keywords: cambrian explosion; fossil; chengjiang; cambrian stage ... See more keywords
A fourteen-faced hexangulaconulariid from the early Cambrian (Stage 2) Yanjiahe Formation, South China
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Paleontology"
DOI: 10.1017/jpa.2019.56
Abstract: Abstract. Extant medusozoans (phylum Cnidaria) are dominated by forms showing tetraradial symmetry, but stem-group medusozoans of early Cambrian age collectively exhibit tetra-, bi-, penta-, and hexaradial symmetry. Moreover, the developmental and evolutionary relationships between four-fold… read more here.
Keywords: yanjiahe formation; early cambrian; cambrian stage; china ... See more keywords
First report of acrotretoid brachiopod shell beds in the lower Cambrian (Stage 4) Guanshan Biota of eastern Yunnan, South China
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Paleontology"
DOI: 10.1017/jpa.2020.66
Abstract: Abstract. Brachiopod shell accumulations are abundant and diverse in the lower Cambrian strata of Yunnan Province, South China, but most commonly they are composed of linguloid and acrotheloid brachiopods. Here, we describe the first record… read more here.
Keywords: south china; shell beds; cambrian stage; yunnan ... See more keywords
A fresh look at the Hyolithid Doliutheca from the Early Cambrian (Stage 4) Shipai Formation of the Three Gorges Area, Hubei, South China
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DOI: 10.3390/biology11060875
Abstract: Simple Summary Doliutheca orientalis is revised from the Shipai Formation (early Cambrian Stage 4) of the Three Gorges area, South China. Specimens are preserved as casts in silty mudstone and as small shelly fossils in… read more here.
Keywords: early cambrian; gorges area; three gorges; cambrian stage ... See more keywords
Amplectobeluid Radiodont Guanshancaris gen. nov. from the Lower Cambrian (Stage 4) Guanshan Lagerstätte of South China: Biostratigraphic and Paleobiogeographic Implications
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DOI: 10.3390/biology12040583
Abstract: Simple Summary “Anomalocaris” kunmingensis is the most common radiodont in the Guanshan biota, which has been recently reassigned to the family Amplectobeluidae. However, its generic assignment is still uncertain. Our new specimens reveal more characteristic… read more here.
Keywords: guanshancaris gen; gen nov; cambrian stage; guanshan ... See more keywords
The endemic radiodonts of the Cambrian Stage 4 Guanshan biota of South China
Sign Up to like & getrecommendations! Published in 2021 at "Acta Palaeontologica Polonica"
DOI: 10.4202/app.00870.2020
Abstract: The Guanshan Biota (South China, Cambrian, Stage 4) contains a diverse assemblage of biomineralizing and non-biomineralizing animals. Sitting temporally between the Stage 3 Chengjiang and Wuliuan Kaili Biotas, the Guanshan Biota contains numerous fossil organisms… read more here.
Keywords: south china; cambrian stage; guanshan biota; biota south ... See more keywords