Carbonates before skeletons: A database approach

MD Cantine, AH Knoll, KD Bergmann - Earth-Science Reviews, 2020 - Elsevier
Carbonate minerals have precipitated from seawater for at least the last 3.8 billion years, but
changes in the physical and chemical properties of carbonate rocks demonstrate that the …

High-resolution carbon isotope records and correlations of the lower Cambrian Longwangmiao formation (stage 4, Toyonian) in Chongqing, South China

Y Ren, D Zhong, C Gao, T Liang, H Sun, D Wu… - Palaeogeography …, 2017 - Elsevier
To gain a better understanding of the oceanic environment of the transitional Lower-Middle
Cambrian boundary and provide additional data for the global ROECE correlation, we …

Microbialite development through the Ediacaran–Cambrian transition in China: distribution, characteristics, and paleoceanographic implications

F Li, J Deng, S Kershaw, R Burne, Q Gong… - Global and Planetary …, 2021 - Elsevier
Widespread development of microbialites harbors a series of clues about microbial activity,
environmental condition, and aquatic chemistry. The Ediacaran-Cambrian transition draws …

The oldest mineralized bryozoan? A possible palaeostomate in the lower Cambrian of Nevada, USA

SB Pruss, L Leeser, EF Smith, AY Zhuravlev… - Science …, 2022 - science.org
All skeletal marine invertebrate phyla appeared during the Cambrian explosion, except for
Bryozoa with mineralized skeletons, which first appear in the Early Ordovician. However, the …

Depauperate skeletonized reef-dwelling fauna of the early Cambrian: insights from archaeocyathan reef ecosystems of western Mongolia

DR Cordie, SQ Dornbos, PJ Marenco, T Oji… - Palaeogeography …, 2019 - Elsevier
Reef-dwelling organisms in the early Cambrian include typical members of the Cambrian
Fauna such as trilobites, chancelloriids, and hyoliths. However, in comparison to later …

Environmental covariation of metazoans and microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland

SB Pruss, AH Knoll - Palaeogeography, Palaeoclimatology, Palaeoecology, 2017 - Elsevier
An antagonistic view of the relationship between microbialites and metazoans has long
been inferred, in part because of the large scale anticorrelation of these two groups through …

Caracterização dos mármores de Estremoz no contexto dos mármores da Antiguidade Clássica da zona de Ossa-Morena

N Moreira, L Lopes - 2019 - dspace.uevora.pt
This work presents, in a non-exhaustive way, the main geological features of the Estremoz
Anticline marbles (historically known as Estremoz Marbles). This geological characterization …

[HTML][HTML] Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North …

Y Hu, TP Topper, J Zhou, Z Wang, B Pan, Y Liang… - Sedimentary …, 2024 - Elsevier
Siliciclastic grains, characterized by concentrated Al, Si, K and other elements, are typical
components of ooids, but their distribution and contribution to ooid formation are uncertain …

Carbon isotope chemostratigraphy of a Gondwanan Ediacaran–Cambrian transition, Soltanieh Mountains, northern Iran

N Etemad-Saeed, AH Knoll, M Najafi, KD Bergmann… - Gondwana …, 2021 - Elsevier
Mixed siliciclastic-carbonate rocks of the Kahar and overlying Soltanieh formations from
Chopoghlu, in the Soltanieh Mountains, northern Iran, preserve an expanded stratigraphic …

Protistan skeletons: a geologic history of evolution and constraint

AH Knoll, B Kotrc - Evolution of lightweight structures: Analyses and …, 2015 - Springer
The tests and scales formed by protists may be the epitome of lightweight bioconstructions in
nature. Skeletal biomineralization is widespread among eukaryotes, but both predominant …