LITHOLOGY CONTROLS AMMONOID SIZE DISTRIBUTIONS

de Baets K, Jarochowska E, Buchwald SZ, Klug C, Korn D (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Palaios Society for Sedimentary Geology (SEPM)

Book Volume: 37

Pages Range: 744-754

Journal Issue: 12

DOI: 10.2110/palo.2021.063

Abstract

Body-size distributions of organisms across environments in space and time are a powerful source of information on ecological and evolutionary processes. However, most studies only focus on selected parameters of size distributions (e.g., central tendency or extremes) and rarely take into account entire distributions and how they are affected by the collection style and facies. Here we analyze the impact of facies, region, taxonomy, and collection style over size distributions using diameter as a proxy of Late Devonian ammonoids in their entirety using non-metric multidimensional scaling and PERMANOVA based on Kolmogorov distance. The effects are then compared with effects on mean sizes. In all analyses, lithology was the dominant effect, with sizes greater by 59% in marls and by 33% in limestones, as compared to black shales. The effect of complete sampling style was a decrease in size by 11%. Kurtosis was an important parameter differentiating size distributions, with platykurtic distributions in marls and leptokurtic distributions in limestones, suggesting that this parameter may reflect different degrees of time averaging. Most size distributions were positively skewed, but most strongly in marls. Complete sampling led to skewness values close to zero (symmetrical distributions) and high kurtosis.

Authors with CRIS profile

Kenneth de Baets Lehrstuhl für Paläoumwelt

Involved external institutions

Universiteit Utrecht (UU) / Utrecht University NL Netherlands (NL) Universität Hamburg (UHH) DE Germany (DE) University of Zurich / Universität Zürich (UZH) CH Switzerland (CH) Leibniz-Institut für Evolutions- und Biodiversitätsforschung / Leibniz Institute for Evolution and Biodiversity Science DE Germany (DE)

How to cite

APA:

de Baets, K., Jarochowska, E., Buchwald, S.Z., Klug, C., & Korn, D. (2022). LITHOLOGY CONTROLS AMMONOID SIZE DISTRIBUTIONS. Palaios, 37(12), 744-754. https://dx.doi.org/10.2110/palo.2021.063

MLA:

de Baets, Kenneth, et al. "LITHOLOGY CONTROLS AMMONOID SIZE DISTRIBUTIONS." Palaios 37.12 (2022): 744-754.

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