Fossil frogs from the upper Miocene of southwestern Brazilian Amazonia (Solimões Formation, Acre Basin).

Muniz, Fellipe Pereira; Bissaro-Júnior, Marcos César; Guilherme, Edson; Souza-Filho, Jonas P. De; Hsiou, Annie Schmaltz

doi:10.1080/02724634.2021.2089853

Cited by 6 publications

(14 citation statements)

References 78 publications

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“…Both the humeral and ilial fragments were highly similar to what is known in Pipa , largely pre‐dating previous fossil records of the genus from the Late Miocene of Brazil (Muniz et al . 2022) and Upper Miocene to Pliocene deposits of Venezuela (Delfino & Sánchez‐Villagra 2018; Carrillo‐Briceño et al . 2021).…”

Section: Discussionmentioning

confidence: 99%

“…2022a), which agrees with the appearance of macropipa forms in the fossil record (Delfino & Sánchez‐Villagra 2018; Muniz et al . 2022). Humeral morphotype 5 and ilial morphotype E morphologically and metrically match more micropipa, although with minor distinctions with extant species, and they largely pre‐date the hypothetical settlement of extant macropipa.…”

Section: Discussionmentioning

confidence: 99%

“…The previous anuran record (Late Miocene, Brazil; Muniz et al . 2022) is indicated in grey. This chart is modified after Halvorsen (2010) and Cohen et al .…”

Section: Methodsmentioning

confidence: 99%

“…The fossil record of Pipa , however, is still very limited and restricted to a few bones from the Upper Miocene Solimões Formation of Brazil (Muniz et al . 2022) and Upper Miocene Urumaco and Upper Pliocene San Gregorio formations of Venezuela (Delfino & Sánchez‐Villagra 2018; Carrillo‐Briceño et al . 2021).…”

mentioning

confidence: 99%

“…Except for the recent description of fossils of two anuran species in fluvio‐lacustrine settings of the Solimões Formation (Upper Miocene of Acre, Brazilian Amazonia; Muniz et al . 2022) and the illustration of three unidentified distal humeri in middle Palaeogene deposits of northern Peruvian Amazonia (near Tarapoto; Antoine et al . 2021), anurans are absent from the fossil record of Amazonia.…”

mentioning

confidence: 99%

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First Eocene–Miocene anuran fossils from Peruvian Amazonia: insights into neotropical frog evolution and diversity

Jansen,

Gómez,

Fouquet

et al. 2023

Papers in Palaeontology

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Anurans are one of the most diverse vertebrate groups, particularly in Amazonia, where species richness exceeds that of anywhere else. Amazonian frogs belong to three main lineages (Hyloidea, Microhylidae and Pipidae), each of which diversified during the Cenozoic. However, due to the virtual absence of an anuran fossil record in that area, the evolutionary history of modern lineages has so far remained accessible only via molecular data. In recent decades, a series of field campaigns in Peruvian Amazonia led to the discovery of an unparalleled set of anuran bone fragments, scattered across different sites spanning the Eocene–Miocene time interval. Here, we describe these first Palaeogene and early Neogene anurans from Peru with a focus on humeral and ilial morphology, identifying five humeral and five ilial morphotypes. Humeral morphotypes suggest the presence of different lineages of Brachycephaloidea in Peruvian fossil assemblages, whereas ilial morphotypes suggest the presence of Leptodactylidae, although leptodactylid‐like ilia also occur in some extant brachycephaloids. Pipids were also identified based on both humeral and ilial fragments. This study fills a major temporal and geographical gap in the evolutionary history of South American anurans, while further uncovering a lack of knowledge in the skeletal morphology of extant anuran families, as well as their inter‐ and intra‐species variability.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…The previous anuran record (Late Miocene, Brazil; Muniz et al . 2022) is indicated in grey. This chart is modified after Halvorsen (2010) and Cohen et al .…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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