Results 31 to 40 of about 392 (143)
Estudios Geologicos, 2019 El Ediacárico terminal inlcuye una serie de cambios drásticos en los ciclos biogeoquímicos, muchos de los cuales se asocian con modificaciones evolutivas en los registros fósiles correspondientes.
H. Cui +20 more
doaj +1 more source
The ‘biomineralization toolkit’ and the origin of animal skeletons
Biological Reviews, Volume 95, Issue 5, Page 1372-1392, October 2020., 2020 ABSTRACT Biomineralized skeletons are widespread in animals, and their origins can be traced to the latest Ediacaran or early Cambrian fossil record, in virtually all animal groups. The origin of animal skeletons is inextricably linked with the diversification of animal body plans and the dramatic changes in ecology and geosphere–biosphere interactions
Duncan J. E. Murdock
wiley +1 more source
Chemo- and biostratigraphy of the Gaojiashan section (northern Yangtze platform, South China): a new Pc-C boundary section [PDF]
Fossil Record, 2015 The widespread, terminal Ediacaran Dengying Formation (~ 551–~ 542 Ma) of South China hosts one of the most prominent negative carbonate carbon isotope excursions in Earth's history and thus bears on the correlation of the Precambrian–Cambrian boundary ...
A. Gamper +4 more
doaj +1 more source
Borings in Cloudina Shells: Complex Predator-Prey Dynamics in the Terminal Neoproterozoic
PALAIOS, 2003 Abstract Predation as an important driver of evolutionary change long has been assumed, despite difficulties to substantiate it with specific examples of predatory interaction, especially for the early Paleozoic diversification of animal life. This study corroborates the existence of shell-drilling predation in the uppermost Neoproterozoic of China ...
H. HUA, B. R. PRATT, L.-Y. ZHANG
openaire +3 more sources
Estudios Geologicos, 2019 Se describen y figuran aquí varias unidades estratigráficas características del tránsito Ediacárico-Cámbrico entre Guadalupe y Castañar de Ibor, al norte del Geoparque de Villuercas-Ibores-Jara (Cáceres).
S. Jensen, J. J. Álvaro, T. Palacios
doaj +1 more source
GRIND-ECT: geological research through integrated Neoproterozoic drilling – Ediacaran–Cambrian transition [PDF]
Scientific DrillingGRIND (Geological Research through Integrated Neoproterozoic Drilling), sponsored by the International Continental Scientific Drilling Program (ICDP), aims to create a core archive of the Neoproterozoic Era via three phases: Tonian (GRIND-TON ...
C. V. Rose +7 more
doaj +1 more source
Estudios Geologicos, 2019 Una de las esquinas de los mapas geográficos que enlazan las provincias de Badajoz, Cáceres y Toledo contiene unos afloramientos claves para entender el tránsito Ediacárico-Cámbrico de la Zona Centroibérica. En los núcleos del Anticlinorio Extremeño y de
J. J. Álvaro, S. Jensen, T. Palacios
doaj +1 more source
Affinity of Ediacaran skeletal fauna and their environmental context [PDF]
, 2022 The Ediacaran-Cambrian boundary (~541 million years ago (Ma)) signifies the start of the ‘Cambrian Explosion’ of animals, and by 520 Ma most major phyla had emerged.
Shore, Amy J.
core +1 more source
Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran [PDF]
, 2022 The intriguing Ediacaran fossil Namacalathus is described from limestones of the Tagatiya Guazú Formation, Itapucumi Group, Paraguay. This is the fifth occurrence of the genus in the Ediacaran geological record.
Guimarães Simões, Marcello +8 more
core
Constraining the onset and environmental setting of metazoan biomineralization: the Ediacaran Nama Group of the Tsaus Mountains, Namibia [PDF]
, 2023 The advent of animal (metazoan) biomineralization marks a fundamental transition in Earth's history, facilitating the diversification of novel body plans as well as the biological control of carbonate sediment production, resulting in a permanent ...
Andrew Curtis +15 more
core +1 more source