PBDB Collection

Algarrobo del Águila (Neogene of Argentina)

Where: La Pampa, Argentina (36.4° S, 67.2° W: paleocoordinates 36.6° S, 65.0° W)

• coordinate stated in text

When: Huayquerian (8.0 - 5.0 Ma)

• Sostillo et al. 2021: Based on the Notoungulata fossil record, the faunal assemblage of this locality is considered early Huayquerian (late Miocene).

•

•Romano et al. 2023: Biochronological methods were useful in ordering and estimating the age of the different faunas of the Cerro Azul Formation, ranging from ca. 8 to ca. 5.7 Ma. Some appear to be transitional between Chasicoan and “Huayquerian” faunas (Cerro La Bota, Cerro Patagua, and Algarrobo del Águila), and other three (Barrancas Coloradas, El Guanaco, and Caleufú) cover the latest Miocene, even some of them could have reached the earliest Pliocene. The Cerro Azul Formation localities cover the range between ca. 8 to ca. 5.7 Ma (late Tortonian–Messinian; Late Miocene; Fig. 3; Supplementary Online Information 1, Tab. S8). 7.597 Ma (7.283 -7.960 Ma) for Algarrobo del Águila.

Environment/lithology: terrestrial; lithology not reported

• In this locality,it is seen from the base to the top the increasingof sandstone layers and the decreaseof silty clayey ones; at the base, there is more development of paleosols, while in the upper sector loessic deposits prevail (Visconti et al., 2010).

Size class: macrofossils

Primary reference: R. Sostillo, M. C. Cardonatto, L. Kerber and C. I. Moltalvo. 2022. Taxonomic and ontogenetic diversity of Dinomyidae (Rodentia) from the late Miocene-early Pliocene of La Pampa province (Argentina) based on cranio-dental remains. Journal of South American Earth Sciences 114:103704 [J. Carrillo/K. Pino/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 230751: authorized by Juan Carrillo, entered by Kateryn Pino on 17.07.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Mammalia
Notoungulata - Toxodontidae	Pisanodon nazari⁴ Pisanodon nazari⁴ Cabrera and Kraglievich 1931 notoungulate MLP 58-IX-3-40, MLP 58-IX-3-41
Notoungulata - Mesotheriidae	Pseudotypotherium subinsigne⁴, Typotheriopsis chasicoensis⁴ Pseudotypotherium subinsigne⁴ Rovereto 1914 notoungulate GHUNLPam 9941, GHUNLPam 9962, GHUNLPam 6564 right, GHUNLPam 6564 left Typotheriopsis chasicoensis⁴ Cabrera and Kraglievich 1931 notoungulate GHUNLPam 9938, GHUNLPam 9954, GHUNLPam 9961, GHUNLPam 9966, GHUNLPam 9972, GHUNLPam 19068, GHUNLPam 19069, GHUNLPam 21104 (juvenile)
Notoungulata - Hegetotheriidae	Hemihegetotherium sp.⁴, Paedotherium minor⁴ Hemihegetotherium sp.⁴ Rovereto 1914 notoungulate GHUNLPam 9999 Paedotherium minor⁴ Cabrera 1937 notoungulate
Rodentia - Dinomyidae	Tetrastylus laevigatus Tetrastylus laevigatus Ameghino 1886 caviomorph GHUNLPam 9973, GHUNLPam 9974, GHUNLPam 27064
Rodentia - Chinchillidae	Lagostomus pretrichodactyla² Lagostomus pretrichodactyla² Rovereto 1914 viscacha GHUNLPam 9945 left mandible with broken i and p4-m1, GHUNLPam 9975 left mandible with p4-m3
Cingulata - Dasypodidae	Vetelia perforata¹, Chasicotatus ameghinoi³ Vetelia perforata¹ Scillato-Yané 1977 armadillo GHUNLPa m-9184-19, GHUNLPa m-9184-4 Chasicotatus ameghinoi³ Scillato-Yané 1977 armadillo

¹Barasoain et al. 2021; ²Montalvo et al. 2023; ³Romano et al. 2023; ⁴Sostillo et al. 2021