Table 2.

Environmental distribution and trophic level of late Bartonian Antarctic chondrichthyans.

Taxon	Living analogue	Zonation	Trophic level
Squalus sp.	Squalus acanthias	Shelf overlap species	4.1 / 4.4*
Squatina sp.	Squatina squatina	Continental shelves	4.1 / 4*
Pristiophorus lanceolatus	Pristiophorus cirratus	Shelf overlap species	4.2 / 4.2*
Striatolamia sp. cf. macrota	Carcharias taurus	Littoral-epipelagic	4.4 / 4.5*
Palaeohypotodus sp. cf. rutoti	Odontaspis ferox	Littoral-epipelagic	4.4 / 4.2*
Carcharocles sokolovi	Carcharodon carcharias	Littoral-epipelagic	4.3 / 4.5*
Ischyodus dolloi	Chimaera spp.	Deep slope/open marine	3.5–4.1*

Inferences are based on comparisons with extant analogues displaying similar structures. Zonations according to Compagno (1984) and Compagno et al. (1991); trophic-level assignment according to Ebert and Bizzaro (2007) and www.fishbase.org (asterisk).