Results 101 to 110 of about 188 (119)
Some of the next articles are maybe not open access.
2023
The late Ediacaran witnessed rapid turnover of organisms. As one of the earliest biomineralizing animal fossils，Cloudina has greatimplication on the evolution of complex macroscopic organisms . With a relatively stable and wide distribution, Cloudina has become one of the most important indicator fossils of the late Ediacaran. Located in the
Jinzhou Luo, Hong Hua, Qiaokun Dai
openaire +1 more source
The late Ediacaran witnessed rapid turnover of organisms. As one of the earliest biomineralizing animal fossils，Cloudina has greatimplication on the evolution of complex macroscopic organisms . With a relatively stable and wide distribution, Cloudina has become one of the most important indicator fossils of the late Ediacaran. Located in the
Jinzhou Luo, Hong Hua, Qiaokun Dai
openaire +1 more source
ACloudina-like fossil with evidence of asexual reproduction from the lowest Cambrian, South China
Geological Magazine, 2017AbstractThe earliest fossil record of animal biomineralization occurs in the latest Ediacaran Period (c. 550 Ma).CloudinaandSinotubulitesare two important tubular taxa among these earliest skeletal fossils. The evolutionary fate ofCloudina-type fossils across the Ediacaran–Cambrian transition, however, remains poorly understood.
JIAN HAN +8 more
openaire +1 more source
With special tubular and skeletal bauplan, Ediacaran tubular fossils are one unique metazoan group that has irreplaceable significance for our understanding of the early metazoan evoution. However, their biological affinities have long been disputed because of their limited morphological features and ambiguous primary composition.
Xinjie Wang, Ben Yang
openaire +1 more source
Xinjie Wang, Ben Yang
openaire +1 more source
Gondwana Research, 2014
Abstract Cloudina are important Ediacaran index fossils, as they have a consistent terminal Neoproterozoic age and a worldwide distribution. The morphology of Cloudina has been reconstructed primarily on the basis of three-dimensionally preserved Chinese and Spanish specimens, but questions remain surrounding their phylogenetic placement ...
Yaoping Cai +4 more
openaire +1 more source
Abstract Cloudina are important Ediacaran index fossils, as they have a consistent terminal Neoproterozoic age and a worldwide distribution. The morphology of Cloudina has been reconstructed primarily on the basis of three-dimensionally preserved Chinese and Spanish specimens, but questions remain surrounding their phylogenetic placement ...
Yaoping Cai +4 more
openaire +1 more source
THROWING THE KITCHEN SINK AT CLOUDINA: A REEVALUATION
Geological Society of America Abstracts with Programs, 2022Tara Selly, James Schiffbauer
openaire +1 more source
Journal of Paleontology, 1999
A new enigmatic Lower Cambrian fossil,Spygoria zappania,is described From theNevadellazone (Botoman) of Lander County, central Nevada. In gross morphology,Spygoriafossils consist of stacks of small (5–10 mm in diameter) irregular calcified cups that are preserved in vertical, concave-up life orientation.
Marc Salak, Halard L. Lescinsky
openaire +1 more source
A new enigmatic Lower Cambrian fossil,Spygoria zappania,is described From theNevadellazone (Botoman) of Lander County, central Nevada. In gross morphology,Spygoriafossils consist of stacks of small (5–10 mm in diameter) irregular calcified cups that are preserved in vertical, concave-up life orientation.
Marc Salak, Halard L. Lescinsky
openaire +1 more source
Shell structure and distribution of Cloudina, a potential index fossil for the terminal Proterozoic.
American journal of science, 1996Cloudina-bearing biosparites and biomicrites in the lower part of the Nama Group, Namibia, contain a wide morphological diversity of shell fragments that can all be attributed to the two named species C. hartmannae and C. riemkeae. The curved to sinuous tubular shells of Cloudina were multi-layered.
openaire +1 more source
TAXONOMIC REMARKS AND STRATIGRAPHIC IMPLICATIONS OF CLOUDINA SPECIES IN NEOPROTEROZOIC STRATA
2018Adorno, Rodrigo Rodrigues +5 more
openaire +1 more source
REEVALUATION OF CLOUDINA? FROM THE TAYLOR FORMATION, ANTARCTICA
Geological Society of America Abstracts with ProgramsTara Selly, James D. Schiffbauer
openaire +1 more source
IMPLICAÇÕES ESTRATIGRÁFICAS DAS OCORRÊNCIAS DE ESPÉCIES DO GÊNERO CLOUDINA NO BRASIL
2015Adorno, Rodrigo Rodrigues +6 more
openaire +1 more source