Body size histories of Shungura Formation reptiles in biotic and abiotic environmental context Author Parker, Abigail K. University of Cambridge Department of Zoology and University Museum of Zoology, Downing Pl, CB 2 3 EJ Cambridge (United Kingdom) and University of Helsinki Department of Computer Science, P. O. Box 68, FI- 00014 Helsinki (Finland) abigail. parker @ helsinki. fi (corresponding author) abigail.parker@helsinki.fi Author Boisserie, Jean-Renaud Centre Français des Études Éthiopiennes, CNRS, Ministère de l’Europe et des affaires étrangères, PO BOX 5554 Addis Ababa (Ethiopia) and Laboratoire Paléontologie Évolution Paléoécosystèmes Paléoprimatologie (PALEVOPRIM), CNRS, Université de Poitiers, 6 rue Michel Brunet, F- 86073 Poitiers (France) jean. renaud. boisserie @ univ-poitiers. fr jean.renaud.boisserie@univ-poitiers.fr Author Müller, Johannes Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin (Germany) johannes. mueller @ mfn. berlin johannes.mueller@mfn.berlin Author Brochu, Christopher A. School of Earth, Environment, and Sustainability, University of Iowa, 123 North Capitol St., Iowa City, Iowa, 52242 IA 52242 (United States) chris-brochu @ uiowa. edu chris-brochu@uiowa.edu Author Head, Jason J. University of Cambridge Department of Zoology and University Museum of Zoology, Downing Pl, CB 2 3 EJ Cambridge (United Kingdom) jjh 71 @ cam. ac. uk jjh71@cam.ac.uk text Comptes Rendus Palevol 2026 2026-02-18 25 2 17 42 https://doi.org/10.5852/cr-palevol2026v25a2 journal article 10.5852/cr-palevol2026v25a2 1777-571X 18760444 urn:lsid:zoobank.org:pub:C4B416C1-9383-4CA5-8A9F-3C317C6ED7A7

TABLE 3. — Correlation between maximum size of reptile groups sampled in the Shungura Formation across the members of the formation. Each cell contains the Pearson correlation coefficient and the p-value for the test. A shows results for pairwise correlation tests between log 10 mass values and B shows results for pairwise correlation tests for the first differences in those values between members, not including results for Trionychidae because the sampled specimens come from too few consecutive members to calculate correlation in their first differences. NA indicates comparison with too few observations of change between bins in common between the two series to run correlation test. P-values under 0.05 which are not significant after Bonferroni correction are marked with *, and correlation coefficients over 0.75 are marked in bold.

		Crocodylus	cf. Mecistops	Pelomedusidae	Testudinidae	Trionychidae	Python
A	Euthecodon	–0.276	0.513	0.25	–0.464	0.555	0.38
		p = 0.44	p = 0.298	p = 0.551	p = 0.295	p = 0.445	p = 0.313
	Crocodylus	–	–0.209	–0.257	–0.139	–0.85	–0.22
			p = 0.691	p = 0.538	p = 0.793	p = 0.15	p = 0.569
	cf. Mecistops	–	–	0.41	0.283	NA	0.547
				p = 0.492	p = 0.817		p = 0.262
	Pelomedusidae	–	–	–	0.674	–0.401	–0.172
					p = 0.142	p = 0.599	p = 0.684
	Testudinidae	–	–	–	–	–0.88	–0.12
						p = 0.315	p = 0.82
	Trionychidae	–	–	–	–	–	–0.286
							p = 0.714
B	Euthecodon	–0.239	NA	0.238	0.102	NA	0.086
		p = 0.568		p = 0.65	p = 0.87		p = 0.914
	Crocodylus	–	NA	–0.079	0.141	NA	–0.216
				p = 0.881	p = 0.859		p = 0.784
	Pelomedusidae	–	–	–	0.826	NA	0.165
					p = 0.174		p = 0.835
	Testudinidae	–	–	–	–	NA	0.997
							p = 0.051