Table 1. Predator-prey relationships during the Early Triassic.

	durophagous predators	Small and mid-sized carnivores	larger carnivores
Prey items:	Invertebrates (e.g., cephalopods, gastropods, bivalves, crustaceans)	Invertebrates	Invertebrates
		conodonts?	conodonts?
		fishes	fishes
			smaller carnivores (e.g., juvenile trematosauroids and reptiles)
Vertebrate predators:	chondrichthyan fishes	chondrichthyan fishes	chondrichthyan fishes
	Acrodus, Palaeobates	Hybodus	Hybodus, Eugeneodontiformes
	actinopterygian fishes	actinopterygian fishes	actinopterygian fishes
	Bobasatrania	Birgeria, Saurichthys	Birgeria, Saurichthys
	actinistian fishes	actinistian fishes	ichthyosaurs
	Mylacanthus, Scleracanthus	Rebellatrix	Pessopteryx, Quasianosteosaurus, ?Callawayia-like ichthyosaurs
	ichthyosaurs	thalattosaurs	temnospondyl ‘amphibians’
	Omphalosaurus, Chaohusaurus	Paralonectes, Agkistrognathus	Svalbardosaurus
		trematosauroid ‘amphibians’
		Aphaneramma, Wantzosaurus
		sauropterygians
		Corosaurus, ?Kwangsisaurus
		ichthyosaurs
		Utatsusaurus, Grippia
		hupehsuchians ?
		Hupehsuchus, Nanchangosaurus

Only a few examples are given for each group. Note that even though conodonts are not listed specifically, they nevertheless would have contributed to the ancient food webs as both predators and prey. See text for references.