Sierra Dorotea (Eocene to of Chile)

Where: Chile (51.6° S, 72.4° W: paleocoordinates 54.1° S, 62.7° W)

• coordinate stated in text

When: Rio Turbio Formation, Middle Eocene to Middle Eocene (48.6 - 33.9 Ma)

• correlative with the La Meseta Formation of Antarctica

•Otero and Soto-Acuna 2015: approx. 400 m in the stratigraphic section of the upper part of Sierra Dorotea

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone

• Otero and Soto-Acuna 2015: brown-to-greenish sandstones with coarse-to-fine grain

Size class: macrofossils

Primary reference: M. A. Sallaberry, R. E. Yury-Yanez, R. A. Otero, S. Soto-Acuna, and T. G. Torres. 2010. Eocene birds from the western margin of southernmost South America. Journal of Paleontology 84(6):1061-1070 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 99479: authorized by Mark Uhen, entered by Mark Uhen on 12.11.2010, edited by Evangelos Vlachos and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Cucullaeidae
Cucullaea sp.1 Lamarck 1801 clam
 Ostreida - Ostreidae
Ostreidae indet.1 Rafinesque 1815 oyster
 Hiatellida - Hiatellidae
Glycimeris sp.1 Lamarck 1799 clam
Panopea sp.1 Menard 1807 clam
 Pholadomyida - Pholadomyidae
Pholadomya sp.1 Sowerby 1823 clam
Chondrichthyes
 Squaliformes - Squalidae
Squalus aff. weltoni1 Long 1992 dogfish shark
 Odontaspidida - Jaekelotodontidae
Palaeohypotodus rutoti1 Winkler 1878 elasmobranch
 Myliobatiformes - Rhinopteridae
Rhinoptera sp.1 Cuvier 1829 cownose ray
 Myliobatiformes - Myliobatidae
Myliobatidae indet.1 Bonaparte 1838 eagle ray
 Lamniformes - Odontaspididae
Striatolamia macrota1 Agassiz 1843 sand tiger shark
Carcharias sp.1 Rafinesque 1810 sand shark
 Orectolobiformes - Parascylliidae
Megascyliorhinus sp.1 Cappetta and Ward 1977 collared carpetshark
 Synechodontiformes - Paleospinacidae
Paraorthacodus sp.1 Glikman 1957 elasmobranch
Reptilia
 Testudines -
Testudines indet.2 Batsch 1788 turtle
SGO.PV.6576a-c, three plastral fragments; SGO.PV.6577, 13 shell fragments
Aves
 Pelecaniformes - Ardeidae
cf. Ardeidae indet. Leach 1820 heron
 Sphenisciformes - Spheniscidae
Spheniscidae indet. Bonaparte 1831 penguin
Palaeeudyptes sp. Huxley 1859 penguin
Reptilia
 Loricata -
Mesoeucrocodylia indet.2 Whetstone and Whybrow 1983 crocodilian
SGO.PV.6654, two fragments of cranium and two osteoderms; SGO.PV.6578, cranium fragment