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 1. — Regression equations used to estimate body mass (in kg, unless noted otherwise) from body lengths for turtles and crocodylians.

Taxon	Measurement, x (cm)	Regression to body mass	Regression source
Testudinidae	Carapace length	BM = 2.751*log10(x) -3.424	Regression derived from data in Regis & Meik (2017)
Trionychidae	Carapace length	log10(BM) = 1.344*log10(x) -1.049	Regression derived from data in Regis & Meik (2017)
Pelomedusidae	Carapace length	log10(BM) = -3.814 + 2.861*log10(x)	Regression derived from data in Regis & Meik (2017)
Crocodylia	Total length	log10(BM) = -4.67 + 2.79*log10(x)	Slavenko et al. (2016)
Python	Total length	log10(BM) = -5.131 + 2.611*log10(x) [mass unit: g]	Feldman & Meiri (2013)