Results 71 to 80 of about 14,980 (261)

Strontium isotope and element constraints on the paleoenvironment of the latest Ediacaran in the Sichuan Basin, southeastern Tibetan Plateau

Frontiers in Earth Science, 2022
The Ediacaran–Cambrian period witnessed episodic extinctions, oxygenation of seawaters, Cambrian explosions, and tectonic events. However, compared with the various high-resolution geochemical records of the early–middle Ediacaran and Cambrian, the ...
Xiaojun Zhang, Xiaojun Zhang, Gang Zhou, Pengyuan Zhang, Yuan He, Zhifu Wei, Gen Wang, Ting Zhang, Wei He, He Ma, Chenxi Zhu, Jingyi Wei, Xueyun Ma, Xiaoli Yu, Shangkun Li, Lun Li, Yongli Wang   +16 more
doaj   +1 more source

Fascinating single‐cell red algae: models for evolution and adaptation

New Phytologist, Volume 250, Issue 3, Page 1424-1437, May 2026.
Summary The unicellular red algae, Cyanidiophyceae, that diverged early during Archaeplastida (algal and plant) evolution, occupy a variety of extreme habitats that are inhospitable for most other eukaryotes. With the use of modern genomics and genetics methods, Cyanidiophyceae show a remarkable taxonomic diversity, share haplodiplophasic life cycles ...
Frédéric Berger, Debashish Bhattacharya, Chung Hyun Cho, Seok‐Wan Choi, Julia Van Etten, Shunsuke Hirooka, Tzu‐Yen Huang, Kyle J. Lauersen, Yongsung Lee, Shao‐Lun Liu, Shin‐ya Miyagishima, Stephen D. Rader, Daniel Schubert, Hwan Su Yoon   +13 more
wiley   +1 more source

The Shell of the Tortoise: Four Essays & an Assemblage by Don McKay [PDF]

, 2014
Review of The Shell of the Tortoise: Four Essays & an Assemblage by Don ...
Payne, Tonia L
core   +1 more source

Ocean acidification in the aftermath of the Marinoan glaciation [PDF]

, 2014
Boron isotope patterns preserved in cap carbonates deposited in the aftermath of the younger Cryogenian (Marinoan, ca. 635 Ma) glaciation confirm a temporary ocean acidification event on the continental margin of the southern Congo craton, Namibia.
Fallick, Anthony E., Kasemann, Simone A., Ohnemueller, Frank, Prave, Anthony R.   +3 more
core   +1 more source

Microbially Mediated Intracellular Barite Mineralization: Evidence From an Early Ediacaran Microfossil in the Doushantuo Formation of South China

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Barite serves as a key proxy for reconstructing paleo‐oceanic productivity and chemistry in modern and ancient marine sediments. Although contemporary barite precipitation involves biological mediation, the mechanisms responsible for ancient barite formation remain unclear.
Shiqi Cheng, Lianjun Feng, Yingjie Yang, Xuelei Chu, Xingliang Zhang, Jinhua Li   +5 more
wiley   +1 more source

Aspects of the taphonomy of the Cambrian Explosion in North Greenland [PDF]

, 2017
This thesis describes and elucidates the taphonomic pathways responsible for the exceptional preservation of some of the most common elements of the Sirius Passet Lagerstätte (early Cambrian), North Greenland.
STRANG, KATIE,MARGARET
core  

The geology and geochronology of Al Wahbah maar crater, Harrat Kishb, Saudi Arabia [PDF]

, 2014
Al Wahbah is a large (∼2.2 km diameter, ∼250 m deep) maar crater in the Harrat Kishb volcanic field in western Saudi Arabia. It cuts Proterozoic basement rocks and two Quaternary basanite lava flows, and is rimmed with an eroded tuff ring of debris from ...
Abdel Wahab, Antar, Abul Maaty, Mostafa A., Awad, Hesham, Kafafy, Aziz, Stuart, Finlay M.   +4 more
core   +1 more source

Controls on the evolution of Ediacaran metazoan ecosystems: A redox perspective [PDF]

, 2017
A growing number of detailed geochemical studies of Ediacaran (635–541 Ma) marine successions have provided snapshots into the redox environments that played host to the earliest known metazoans.
Aceñolaza, Adams, Adams, Algeo, Algeo, An, Andersen, Anderson, Aubet, Baldwin, Bau, Bengtson, Bjerrum, Blamey, Blanco, Blanco, Boag, Bouougri, Bowring, Boyle, Brain, Bristow, Broce, Broecker, Bruce, Burns, Butterfield, Cai, Canfield, Canfield, Canfield, Canfield, Canfield, Chang, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Cheng, Clarkson, Clites, Cohen, Cohen, Cole, Compston, Condon, Corsetti, Cortijo, Crimes, Cui, Cui, Cui, Cumming, Dahl, Darroch, Darroch, Derry, Dibenedetto, Duda, Fan, Fedonkin, Fedonkin, Feng, Fike, Frei, Fuenzalida, Gaucher, Gaucher, Gaucher, Gaucher, Gaucher, Gaucher, Gehling, Gehling, German, Germs, Germs, Germs, Gilleaudeau, Gilleaudeau, Gomes, Grant, Grazhdankin, Grazhdankin, Grazhdankin, Grotzinger, Grotzinger, Grotzinger, Guan, Guilbaud, Hall, Han, Haq, Helly, Ho, Hoffmann, Hofmann, Hohl, Hood, Hua, Huldtgren, Ivantsov, James, Jensen, Jensen, Jiang, Jiang, Jiang, Jiang, Jin, Johnston, Johnston, Johnston, Kaufman, Kaufman, Kendall, Kendall, Kendall, Kershaw, Knauth, Konovalov, Kumar, Kurzweil, Laflamme, Laflamme, Le Guerroué, Lenton, Levin, Li, Li, Li, Li, Li, Li, Ling, Liu, Liu, Liu, Liu, Love, Lyons, MacDonald, MacNaughton, Martin, McArthur, McFadden, Meng, Meyer, Meyer, Mills, März, Narbonne, Narbonne, Narbonne, Neubert, Nursall, Och, Och, Och, Okada, Osburn, Paulmier, Pecoits, Penny, Petsch, Planavsky, Porter, Poulton, Poulton, Poulton, Poulton, Poulton, Pu, Raiswell, Raiswell, Raiswell, Reinhard, Reis, Rooney, Ross, Runnegar, Sahoo, Sahoo, Sappenfield, Saylor, Saylor, Saylor, Schiffbauer, Schmitz, Scholz, Schrag, Schroder, Schwarz, Scott, Scott, Severmann, Shen, Shen, Shen, Shields, Shields-Zhou, Siebert, Sour-tovar, Spangenberg, Sperling, Sperling, Sperling, Sperling, Sperling, Sperling, Stirling, Swart, Tomczak, Tostevin, Tostevin, Tribovillard, Van Iten, Vannier, Vaquer-Sunyer, Vernhet, Vorob'eva, Waggoner, Wan, Wang, Wang, Warren, Wilby, Wille, Wilson, Wood, Wood, Wood, Wood, Wu, Xiao, Xiao, Xiao, Xiao, Xu, Yonkee, Yuan, Yuan, Zhang, Zhang, Zhou, Zhou, Zhu, Zhu, Zhu, Zhu, Zhuravlev, Zhuravlev   +254 more
core   +3 more sources

The arrangement of possible muscle fibres in the Ediacaran taxon Haootia quadriformis [PDF]

, 2015
Haootia quadriformis from Newfoundland, Canada, is one of the most unusual impressions of a soft-bodied macro-organism yet described from the late Ediacaran Period. Interpreted as a metazoan of cnidarian grade, the body impression of H.
Brasier, Martin, Liu, Alex G S C, Matthews, Jack, McIlroy, Duncan, Menon, Latha   +4 more
core   +4 more sources

DETRITAL ZIRCONS FROM THE PRECAMBRIAN OF THE IGARKA UPLIFT (NORTHWESTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика
Herein we report the results of LA-ICP-MS dating of detrital zircons from eight stratigraphic levels of the Proterozoic section of the Igarka uplift (northwestern Siberian Platform).
B. B. Kochnev, D. V. Semenova, V. B. Khubanov, M. K. Danukalova, V. V. Marusin, A. K. Khudoley   +5 more
doaj   +1 more source