A Last Glacial anuran assemblage from the inland Pampas of South America provides insights into climate and environments during marine isotope stage 3

Pérez-Ben, Celeste M.; Turazzini, Guillermo F.; Gómez, Raúl O.

doi:10.1080/02724634.2019.1627365

Cited by 18 publications

(10 citation statements)

References 55 publications

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“…2014, 2016; Pérez‐Ben et al . 2019; Barcelos & dos Santos 2022; Turazzini & Gómez 2023a), and is restricted to so far undescribed isolated bones attributed to Telmatobius sp. that have recently been reported from the Pleistocene of Chile (Figueroa‐Bravo et al .…”

Section: Figmentioning

confidence: 99%

A new early water frog (Telmatobius) from the Miocene of the Bolivian Altiplano

Gómez,

Ventura,

Turazzini

et al. 2024

Papers in Palaeontology

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We describe the new frog Telmatobius achachila sp. nov. from the late Middle to earliest Late Miocene of Achiri, based on a partial skeleton found at 3960 m above sealevel in the Bolivian Altiplano. This skeleton, attributed to a male adult, constitutes the first documented fossil record of the speciose living genus Telmatobius, endemic to the Andean Cordillera and the Altiplano. Phylogenetic analysis confirms the new species as being part of the crown group, and diverging both later than the T. verrucosus group and earlier than the T. bolivianus, T. marmoratus and T. macrostomus groups. Coupled with its accurate stratigraphic provenance and age, this phylogenetic position provides a relevant calibration point for timing the evolutionary history of these highland, mostly aquatic frogs. The skeleton of T. achachila indicates that several of the osteological peculiarities of extant Telmatobius were already acquired at c. 12 Ma, including some that might be linked to their aquatic lifestyle. Together with mixed montane–rainforest pollen vegetation uncovered in the same level, this fossil specimen further provides key data enabling a more accurate reconstruction of ancestral habitats and elevation ranges of Telmatobius, agreeing with the previously postulated conditions in which these water frogs might have first evolved. Ultimately, this discovery adds to the sparse evidence of a humid tropical Bolivian Altiplano just prior to: (1) the Late Miocene uplift pulse of the Central Altiplano; and (2) the drastic climate deterioration that occurred from Late Miocene time onward, leading to the harsh highland‐steppe environments reigning there today.

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Section: Figmentioning

confidence: 99%

A new early water frog (Telmatobius) from the Miocene of the Bolivian Altiplano

Gómez,

Ventura,

Turazzini

et al. 2024

Papers in Palaeontology

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“…In addition to the fossil fish material described above, the Lithofacies I of Centinela del Mar has yielded abundant remains of invertebrates, amphibians, reptiles, birds and mammals [36,37,38,101,102]. From a palaeobiogeographic approach, the presence of anuran remains belonging to the family Pipidae is especially noteworthy because it is currently absent in Argentina [22,38]. These frogs are strictly aquatic and their dispersal, like for the fishes mentioned above, may exclusively take place through strong floods and across large watercourses.…”

Section: Palaeoenvironmental Implicationsmentioning

confidence: 99%

“…Most of the palaeontological studies conducted in the Pampas are based on mammalian fauna, and there is little information on vertebrates such as fishes and frogs, which are known to be sensitive to climate changes (see [22]). This contribution focuses on the fish assemblage recovered from the Centinela del Mar fossil site, located in the Pampas, southern Buenos Aires Province, Argentina.…”

Section: Introductionmentioning

confidence: 99%

A Pleistocene freshwater ichthyofaunal assemblage from central Argentina: What kind of fishes lived in the Pampean lagoons before the extinction of the megafauna?

et al. 2020

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This study contributes to the knowledge of continental fishes recovered from sedimentary successions corresponding to the Bonaerean Stage/Age (late mid-Pleistocene) in the locality of Centinela del Mar, General Alvarado County, Buenos Aires province, Argentina. At this site we describe fossil fishes from a palaeolagoon, including Corydoras sp., Pimelodella sp., Rhamdia sp., Oligosarcus sp., small undetermined characids, Jenynsia sp. and Odontesthes sp. The recovered ichthyofaunal assemblage comprises at least seven taxa of Paranaean lineage. The taxonomic composition of the palaeoichthyofauna is quite comparable to that presently found in Bonaerean Watercourses of the Atlantic Drainage ecoregion. This suggests that local ichthyofaunal communities have remained relatively stable since the late mid-Pleistocene.

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“…The fossil record of Ceratophryidae dates back to the Late Miocene and it is quite rich compared with the scarce fossil record of most other neotropical anuran groups (Barcelos & dos Santos, 2022; Gómez et al, 2013; Pérez-Ben et al, 2019a, b; Turazzini et al, 2016). Despite the broad South American distribution of extant forms, fossils are largely concentrated in the Argentinean Pampas and consist mostly of variably complete cranial remains and comparatively few, mainly isolated, postcranial bones of Ceratophrys (Agnolin, 2005; Barcelos et al, 2020; Fernicola, 2001; Gómez & Turazzini, 2021; Marshall & Patterson, 1981; Nicoli, 2016, 2017, 2019; Peri, 1993; Stoessel et al, 2008), whereas no fossils are known for Chacophrys, and only three specimens, including the one described herein, have been identified as Lepidobatrachus so far (Gómez & Turazzini, 2021; Nicoli, 2015; Tomassini et al, 2011; Turazzini, 2015).…”

Section: Introductionmentioning

confidence: 99%

A new old Budgett frog: an articulated skeleton of an Early Pliocene Lepidobatrachus (Anura, Ceratophryidae) from western Argentina

Turazzini

Gómez

2022

Journal of Vertebrate Paleontology

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The South American horned frogs or ‘escuerzos’ (Ceratophryidae) are among the best-known neobatrachians and comprise the genera Chacophrys, Ceratophrys, and Lepidobatrachus. Their relatively rich fossil record, which dates back to the Late Miocene and is largely concentrated in the Argentinean Pampas, consists mostly of variably complete cranial remains and comparatively few, mainly isolated, postcranial bones of Ceratophrys, whereas only three specimens of Lepidobatrachus are known. Here we describe two extra-Pampean ceratophryid records from the Upper Miocene–Lower Pliocene of Huayquerías del Este, Mendoza Province, Argentina, including Lepidobatrachus dibumartinez sp. nov. based on a well-preserved articulated skeleton. The new species is part of the stem of Lepidobatrachus and is diagnosed on the basis of several cranial and postcranial traits, including a large kite-shaped dorsal dermal shield. The new taxon sheds light on the evolution of a dorsal shield in the group, as well as on their paleobiogeographic history, adding support to the hypothesis of a broader ancestral distribution of Lepidobatrachus, whose diversification might have been triggered by the Late Miocene marine introgression of the Paranaense Sea. Also, it indicates that the prevalent climatic conditions during the Early Pliocene in western Argentina were much warmer and less dry than today. Finally, we discuss the potential value of the new records in calibrating the time-tree of Ceratophryidae.

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A Last Glacial anuran assemblage from the inland Pampas of South America provides insights into climate and environments during marine isotope stage 3

Cited by 18 publications

References 55 publications

A new early water frog (Telmatobius) from the Miocene of the Bolivian Altiplano

A new early water frog (Telmatobius) from the Miocene of the Bolivian Altiplano

A Pleistocene freshwater ichthyofaunal assemblage from central Argentina: What kind of fishes lived in the Pampean lagoons before the extinction of the megafauna?

A new old Budgett frog: an articulated skeleton of an Early Pliocene Lepidobatrachus (Anura, Ceratophryidae) from western Argentina

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