Cambrian

Just out | Seaweed morphology and ecology during the great animal diversification events of the early Paleozoic: A tale of two floras @ Geobiology

Just out @ Geobiology Seaweed morphology and ecology during the great animal diversification events of the early Paleozoic: A tale of two floras Author(s) S. T. LoDuca, N. Bykova, M. Wu, S. Xiao, Y. Zhao Abstract: Non-calcified marine macroalgae (“seaweeds”) play a variety of key roles in the modern Earth system, and it is likely that they were also important players in the geological past, particularly during critical transitions such

Just out | The identification of putative Lower Cambrian Radiolaria @ Revue de Micropaléontologie

Just out @ Revue de Micropaléontologie The identification of putative Lower Cambrian Radiolaria Author(s) Jörg Maletz Abstract: The identity of presumed Terreneuvian (Stage 1, Fortunian) to Botoman (Series 2, Stage 3) radiolarians is discussed. The presence of radiolarians in the Lower Cambrian Hetang and Kuanchuanpu formations and the material from Jiuqunao, Hubei Province, China has to be regarded as a contamination with younger material. Oldest genuine radiolarians are recognized in Stage

Just out | Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia @ Acta Palaeontologica Polonica

Just out @ Acta Palaeontologica Polonica Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia Author(s) Artem Kouchinsky, Stefan Bengtson, Ed Landing, Michael Steiner, Michael Vendrasco, and Karen Ziegler Abstract: Assemblages of mineralized skeletal fossils are described from limestone rocks of the lower Cambrian Nemakit-Daldyn, Medvezhya, Kugda-Yuryakh, Manykay, and lower Emyaksin formations exposed on the western and eastern flanks of the Anabar Uplift of the northern Siberian Platform. The skeletal fossil

Just out | Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA @ PeerJ

Just out @ PeerJ Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA Author(s) Bruce S. Lieberman, Richard Kurkewicz, Heather Shinogle, Julien Kimmig, Breandán Anraoi MacGabhann Abstract: The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this

Just out | A new scyphozoan from the Cambrian Fortunian Stage of South China @ Palaeontology

Just out @ Palaeontology A new scyphozoan from the Cambrian Fortunian Stage of South China Author(s) Yunhuan Liu, Tiequan Shao, Huaqiao Zhang, Qi Wang, Yanan Zhang, Cheng Chen, Yongchun Liang, Jiaqi Xue Abstract: Animals with radial symmetry are abundant in the Cambrian Fortunian Stage of South China, but with relatively low diversity: representatives include Olivooides, Quadrapyrgites, carinachitiids, hexangulaconulariids and Pseudooides. Here, we report a new radial animal, Qinscyphus necopinusgen. et sp.

Just out | Palynomorphs from the Cambrian Series 3, Parahio valley (Spiti), Northwest Himalaya @ Palaeoworld

Just out @ Palaeoworld Palynomorphs from the Cambrian Series 3, Parahio valley (Spiti), Northwest Himalaya Author(s) Lei-Ming Yin, B.P. Singh, O.N. Bhargava, Yuan-Long Zhao, R.S. Negi, Fan-Wei Meng, C.A. Sharma Abstract: We present low-diversity acritarch assemblages, including Alliumella baltica, Bavlinella faveolata, Brocholaminaria nigrita, Brocholaminaria sp., Eliasum sp., Leiosphaeridia minutissima, Leiosphaeridia spp., Lophosphaeridium sp., Pterospermella solida, Satka colonialica, Siphonophycus sp., and Synsphaeridium sp., as well as filamentous algae and cryptospore-like microfossils recorded

Just out | Divaricate patterns in Cambro-Ordovician obolid brachiopods from Gondwana @ Historical Biology

Just out @ Historical Biology Divaricate patterns in Cambro-Ordovician obolid brachiopods from Gondwana Author(s) M. Mergl, İ. Hoşgör, I. O. Yilmaz, S. Zamora & J. Colmenar Abstract: A new brachiopod species, Westonia mardini, from the Furongian of Turkey and a new occurrence of Westonia urbiona from the Cambrian Series 3 of Iberian Peninsula are reported. These new finds of ‘westoniids’ collected in Gondwana allow the discussion of the functional morphology of

Just out | Traces of predation in the Cambrian @ Historical Biology

Just out @ Historical Biology Traces of predation in the Cambrian Author(s) Olev Vinn Abstract: Series two marks a revolution in Cambrian predation when new predators and new predation methods appeared, which led to general increase in predation intensities and in the diversity of prey groups. The number of bored taxa and taxa with the predation scars is similar in the Cambrian. Most of the borings are associated with brachiopods and

Just out | Trilobite extinctions, facies changes and the ROECE carbon isotope excursion at the Cambrian Series 2–3 boundary, Great Basin, western USA @ Palaeogeography, Palaeoclimatology, Palaeoecology

Just out @ Palaeogeography, Palaeoclimatology, Palaeoecology Trilobite extinctions, facies changes and the ROECE carbon isotope excursion at the Cambrian Series 2–3 boundary, Great Basin, western USA Author(s) Luke E. Faggetter, Paul B. Wignall, Sara B. Pruss, Robert J. Newton, Yadong Sun, Stephen F. Crowley Abstract: The mass extinction of the olenellid trilobites occurred around the Cambrian Series 2–Series 3 boundary. Like many other crises, it coincided with a negative carbon isotope

On the News | Time is running out to determine if China holds the world’s oldest animal fossils @ The Washington Post

On the News @ The Washington Post Title:  Time is running out to determine if China holds the world’s oldest animal fossils Excerpt: “The rocks of the Doushantuo Formation, in China’s Guizhou Province, are sprinkled with tiny, ancient fossils. They are no more than a millimeter in length. The 600-million-year-old organisms are preserved with such detail that the fossils, when freed from the rock in a chemical bath and scanned with X-rays, reveal