Generalist diet of Microraptor zhaoianus included mammals Author HONE, DAVIDW. E. School of Biological and Behavioural Sciences, Queen Mary University of London, London, U. K. Author DECECCHI, T. ALEXANDER Division of Natural Sciences, Mount Marty College, Yankton, South Dakota, U. S. A. Author SULLIVAN, CORWIN Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada Author XING, XU Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China Author LARSSON, HANS C. E. Redpath Museum, McGill University, Quebec, Canada. hans. ce. larsson @ mcgill. ca text Journal of Vertebrate Paleontology 2022 2022-12-20 43 e 2144337 1 9 journal article 10.1080/02724634.2022.2144337 7477141

TABLE 2. Estimated body masses of Microraptor specimens and characteristics of their gut contents. Microraptor specimen masses are based on femoral length per Christiansen and Fariña (2004). Prey size masses are estimated for a complete individual, not only the body portion preserved. Bird mass based on the estimate in O’ Connor et al. (2011). Fish mass based on osseous mass of fish in QM V1002 being of similar dimensions (minimally 3.5 × 1.6 cm) as the regurgitate in Anchiornis specimen STM0-224, which was estimated at 93 g by Friemuth et al. (2021). Mass of squamate Indrasaurus estimated from SVL using Meri (2010); SVL estimated based on closely related and similar sized (femur length 83% of that of Indrasaurus) specimen of Liushusaurus (Evans & Wang 2010).

	Microraptor femur length	Microraptor		Prey size of complete individual	Prey % of predator
Specimen	(mm)	mass (g)	Prey	(g)	mass
IVPP	82.3	760	enantiornithine bird	60–70	8–9%
V13972 A
QM V1002	109	1890	teleost fish	90	5%
STM5-32	75	570	scleroglossan	6–12	1–2%
			squamate
IVPP V 12330	49.8	150	mammal	21–30	14–21%