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. Author manuscript; available in PMC: 2017 Nov 6.
Published in final edited form as: J South Am Earth Sci. 2017 Jul 21;78:175–189. doi: 10.1016/j.jsames.2017.07.006

Table 1.

Stratigraphic occurrences, facies distribution and climatic conditions of Eocene La Meseta chondrichthyan associations of Seymour Island (Antarctica) based on published records (see text for references). Taxa described here are in bold. Facies interpretation according to Marenssi et al. (2002); sea surface temperatures (Temp.) according to Ivany et al. (2008). For occurrence references see text.

TELM Facies Temp. Association
7 shallow marine inner estuary channels ca. 7
−8 °C
ca. 5 °C
Squalus sp., Squatina sp., Pristiophorus laevis, Carcharocles sokolovi, Palaeohypotodus cf. rutoti, Striatolamia cf. macrota, Ischyodus dolloi
6 estuary ca. 7 °C
ca. 15 °C
Squatina sp., Squalus woodburnei, Squalus weltoni, Pristiophorus laevis, Ischyodus dolloi, Coelometlaouia pannucea, Notoramphoscyllium woodwardi
5 estuary ca. 10
–11 °C
Heptranchias howelli, Hexanchus sp., Centrophorus sp. 1, Centrophorus sp. 2, Eodalatias austrinalis gen. et sp. nov., Squalus weltoni, Squalus woodburnei, Pristiophorus laevis, Squatina sp., Anomotodon multidenticulata, Cetorhinus sp., Macrorhizodus praecursor, Lamna cf. nasus, Odontaspis winkleri, Palaeohypotodus rutoti, Striatolamia macrota, Notoramphoscyllium woodwardi, Coelometlaouia pannucea, Scoliodon sp., Myliobatis sp., Raja/Bathyraja sp., Ischyodus dolloi
4 estuary ca. 10
−11 °C
Paraorthacodus sp., Heptranchias howelli, Hexanchus sp., Centrophorus sp., Eodalatias austrinalis gen. et sp. nov., Deania sp., Squalus weltoni, Squalus woodburnei, Pristiophorus laevis, Squatina sp., Anomotodon multidenticulata, Carcharocles auriculatus, Cetorhinus sp., Macrorhizodus praecursor, Lamna cf. nasus, Odontaspis winkleri, Palaeohypotodus rutoti, Striatolamia macrota, Carcharhinus sp., Scoliodon sp., Myliobatis sp., Pristis sp., Raja/Bathyraja sp., Chimaera seymourensis, Ischyodus dolloi
3 delta plain – estuary ca. 10
−11 °C
ca. 15 °C
Pristiophorus laevis, Carcharocles auriculatus, Lamna cf. nasus, Striatolamia macrota, Myliobatis sp., Ischyodus dolloi
2 delta front Callorhinchus stahli, Chimaera seymourensis, Ischyodus dolloi
1–2 prodelta?/inner estuarine? Centrophorus sp., Deania sp., Carcharocles auriculatus, Striatolamia macrota