Results 41 to 50 of about 16,764 (247)
Calibrating the temporal and spatial dynamics of the Ediacaran - Cambrian radiation of animals
Earth-Science Reviews, 2021 The Ediacaran-Cambrian transition, which incorporates the radiation of animals, lacks a robust global temporal and spatial framework, resulting in major uncertainty in the evolutionary dynamics of this critical radiation and its relationship to changes ...
F. Bowyer +9 more
semanticscholar +1 more source
A crown-group cnidarian from the Ediacaran of Charnwood Forest, UK
Nature Ecology & Evolution, 2022 Cnidarians are a disparate and ancient phylum, encompassing corals and jellyfish, and occupy both the pelagic and benthic realms. They have a rich fossil record from the Phanerozoic eon lending insight into the early history of the group but, although ...
F. Dunn +5 more
semanticscholar +1 more source
Transgression–regression cycles drive correlations in Ediacaran–Cambrian rock and fossil records
Paleobiology, 2023 Non-technical Summary Ediacaran-age sedimentary rocks (635–538.8 million years ago) contain the oldest animal fos sils that are visible to the naked eye.
Daniel C. Segessenman, Shanan E. Peters
semanticscholar +1 more source
Enduring evolutionary embellishment of cloudinids in the Cambrian
Royal Society Open Science, 2021 The Ediacaran–Cambrian transition and the following Cambrian Explosion are among the most fundamental events in the evolutionary history of animals. Understanding these events is enhanced when phylogenetic linkages can be established among animal fossils
Tae-Yoon S. Park +7 more
doaj +1 more source
The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
Journal of the Geological Society, 2022 Ecdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha, Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically moulted cuticle that predisposes them to exceptional preservation.
Richard J. Howard +12 more
semanticscholar +1 more source
Engineering the Cambrian explosion: the earliest bioturbators as ecosystem engineers [PDF]
, 2017 By applying modern biological criteria to trace fossil types and assessing burrow morphology, complexity, depth, potential burrow function and the likelihood of bioirrigation, we assign ecosystem engineering impact (EEI) values to the key ichnotaxa in ...
Callow, Richard H. T. +3 more
core +1 more source
Earth-Science Reviews, 2022 The diversification of animals during the Cambrian Period is one of the most significant evolutionary events in Earth ’ s history. However, the sequence of events leading to the origin of ‘modern ’ ecosystems and the exact temporal relationship between ...
T. Topper +7 more
semanticscholar +1 more source
Литосфера, 2018 Granitoids of Ishirim anticlinorium which is one of the major Precambrian structures of the North Urals, are poorly studied by modern geochemical and isotope-geochronological methods that led to the existence of different points of view on formation ...
Georg A. Petrov +2 more
doaj +1 more source
Extensive primary production promoted the recovery of the Ediacaran Shuram excursion
Nature Communications, 2022 Member IV of the Ediacaran Doushantuo Formation records the recovery from the most negative carbon isotope excursion in Earth history. However, the main biogeochemical controls that ultimately drove this recovery have yet to be elucidated.
Fuencisla Cañadas +3 more
semanticscholar +1 more source
Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event [PDF]
, 2018 We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community
Armstrong, Joseph +5 more
core +2 more sources