First record of Nematherium (Xenarthra, Mylodontidae) from the Pinturas Formation (Burdigalian, early Miocene), Santa Cruz Province, Argentina

2019 ◽  
Vol 96 ◽  
pp. 102324
Author(s):  
Diego Brandoni ◽  
Nelson M. Novo ◽  
Juliana Tarquini ◽  
Marcelo F. Tejedor
Keyword(s):  
First Record ◽  
Early Miocene ◽  
Santa Cruz

A novel late Early Miocene assemblage of terrestrial gastropods from Santa Cruz (Patagonia, Argentina)

2015 ◽  
Vol 89 (5) ◽  
pp. 748-761 ◽  
Author(s):  
Sergio E. Miquel ◽  
Pablo E. Rodriguez
Keyword(s):  
South America ◽  
New Taxa ◽  
Vegetation Cover ◽  
First Record ◽  
Early Miocene ◽  
New Taxon ◽  
Santa Cruz ◽  
Dense Vegetation ◽  
Humid Environment ◽  
New Information

AbstractA remarkable fossil assemblage composed of five gastropod taxa is described from the Early Miocene of Santa Cruz (Patagonia, Argentina) in southernmost South America. The assemblage includes extinct and living genera South America, and on geographic distributions and represent background new information on spatial and across time distributions as well as identification of new taxa. A new taxon,Patagocharopa enigmatican. gen. n. sp., is tentatively assigned to Charopidae.Gastrocopta patagonican. sp. (Vertiginidae) represents the oldest record ofGastrocoptain Argentina and the southernmost record for the Americas.Punctum patagonicumn. sp. (Punctidae) represents the first record ofPunctumfor continental South America, and characterized by a protoconch with traces of axial costulae and a teleoconch with strong radial ribs.Zilchogyra miocenican. sp. is the first Miocene record of the charopid genusZilchogyra. Fragments of a possibleScolodonta(Scolodontidae) are recorded. Overall, the assemblage represents an important and useful paleoenvironmental tool. This fauna suggests that a more temperate and humid environment than today—with a more dense vegetation cover—was prevalent at this site during the Early Miocene.

Callochiton monteleonensis n. sp., first record of Polyplacophora (Mollusca) from the Neogene of Argentina

2011 ◽  
Vol 85 (6) ◽  
pp. 1181-1187 ◽  
Author(s):  
Diego Urteaga ◽  
Miguel Griffin ◽  
Guido Pastorino
Keyword(s):  
New Species ◽  
New Zealand ◽  
Central Area ◽  
First Record ◽  
Early Miocene ◽  
Southwestern Atlantic ◽  
Santa Cruz ◽  
Recent Species ◽  
A New Species

A new species of chiton is described from early Miocene deposits of the Monte León Formation, in Santa Cruz Province, Argentina. Callochiton monteleonensis n. sp. clearly differs from known fossil and Recent species of the southwestern Atlantic because the central area of its intermediate valves has a stepped appearance, in which each step is marked by a longitudinal rib. It is similar to Callochiton kapitiensis Mestayer, 1926, a Recent species from New Zealand. Biogeographic implications are discussed. This is the first record of a polyplacophoran from Neogene deposits of Argentina.

Erratum to: Megatherioidea (Mammalia, Xenarthra, Tardigrada) from the Pinturas Formation (Early Miocene), Santa Cruz Province (Argentina) and their chronological implications

PalZ ◽  
2016 ◽  
Vol 90 (3) ◽  
pp. 647-648
Author(s):  
Diego Brandoni ◽  
Laureano González Ruiz ◽  
Marcelo F. Tejedor ◽  
Gabriel Martin ◽  
John G. Fleagle
Keyword(s):  
Early Miocene ◽  
Santa Cruz

scholarly journals First Miocene record of Akaniaceae in Patagonia (Argentina): a fossil wood from the early Miocene Santa Cruz formation and its palaeobiogeographical implications

2017 ◽  
Vol 183 (3) ◽  
pp. 334-347 ◽  
Author(s):  
Mariana Brea ◽  
Alejandro F. Zucol ◽  
M. Susana Bargo ◽  
Juan Carlos Fernicola ◽  
Sergio F. Vizcaíno
Keyword(s):  
Fossil Wood ◽  
Early Miocene ◽  
Santa Cruz

Peonza: new gastropod genus from the middle Tertiary of Patagonia and Chile

1994 ◽  
Vol 68 (2) ◽  
pp. 279-286 ◽  
Author(s):  
Amalia M. Olivera ◽  
William J. Zinsmeister ◽  
S. Graciela Parma
Keyword(s):  
New Species ◽  
Temporal Distribution ◽  
Late Eocene ◽  
Tierra Del Fuego ◽  
Early Miocene ◽  
Late Oligocene ◽  
Southern Chile ◽  
Santa Cruz ◽  
Two New Species

A new Tertiary gastropod genus, Peonza n. gen., is described, along with two new species, P. torquata from southern Argentina and P. benjamina from southern Chile. These muricacean gastropods, of uncertain familial status, occur in the late Eocene San Julián Formation and in the late Oligocene to early Miocene? Monte León Formation, Santa Cruz Province, Argentina. They also were recorded in the (probably) Oligocene Magellanian beds in Tierra del Fuego, Argentina, and in early Miocene deposits of the Tres Montes region in the Chilean Canals. In spite of the small number of specimens, Peonza n. gen. seems to have had a wide geographic and temporal distribution.

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