Incursion of tropically-distributed plant taxa into high latitudes during the middle Eocene warming event: Evidence from the Río Turbio Fm, Santa Cruz, Argentina

Fernández, Damián Andrés; Santamarina, Patricio Emmanuel; Palazzesi, Luis; Tellerı́a, Marı́a Cristina; Barreda, Viviana

doi:10.1016/j.revpalbo.2021.104510

Cited by 6 publications

(5 citation statements)

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“…The DEC + j model shows that Dipsadidae dispersed to South America several times during its diversification. Both subfamilies originated and began to diversify in the Middle Eocene, when a major increase in temperature—the Middle Eocene Climatic Optimum or MECO—took place, which has been shown to have increased the diversity of plants and mammals (Fernandez et al., 2021; Woodburne et al., 2014). Numerous other significant intercontinental faunal dispersals have been documented for this period for many vertebrates (Beard et al., 1994; Chaimanee et al., 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The outer rim is coloured according to the major groups within Dipsadidae: Xenodontinae (grey), Dipsadinae (orange), Carphophiinae (North American relicts, dark red) and Asian dipsadids (purple). MECO-took place, which has been shown to have increased the diversity of plants and mammals (Fernandez et al, 2021;Woodburne et al, 2014). Numerous other significant intercontinental faunal dispersals have been documented for this period for many vertebrates (Beard et al, 1994;Chaimanee et al, 2012).…”

Section: Ta B L Ementioning

confidence: 99%

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There and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

Serrano,

Pontes‐Nogueira,

Sawaya

et al. 2024

Journal of Biogeography

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AimThe widespread megadiverse Neotropical snake family Dipsadidae occurs in a large range of diverse habitats. Therefore, it represents an excellent model to study the diversification of Neotropical biota. Herein, by generating a time‐calibrated species‐level phylogeny, we investigate the origin and historical biogeography of Dipsadidae and test if its two main Neotropical subfamilies, Xenodontinae and Dipsadinae, have different geographical origins.LocationNeotropical region.TaxonDipsadidae (Serpentes).MethodsWe generated a new Bayesian time‐calibrated phylogeny based on published sequences from six genes for 344 species, including 287 species of Dipsadidae. We subsequently estimated ancestral areas of distribution by comparing models in BioGeoBEARS: DEC (subset sympatry, narrow vicariance), DIVALIKE (narrow and wide vicariance), BAYAREALIKE (no vicariance and widespread sympatry), also testing jump dispersal. We also estimated shifts in the diversification of this group using BAMM, exploring possible relationships with its historical biogeography.ResultsThe best models show that Dipsadidae likely originated approximately 50 million years ago (mya) in Asia. Dispersal was a fundamental process in its historical biogeography. The DEC model with jump dispersal indicated that this family underwent a range extension from Asia and posterior vicariance of North and Central America ancestors. Both Xenodontinae and Dipsadinae originated in Central America and dispersed to South America during Middle Eocene, but did so to different regions (cis and trans‐Andean South America, respectively). Xenodontinae entered cis‐Andean South America around 39 mya and jump dispersed to the West Indies around 33 mya, while Dipsadinae entered trans‐Andean South America multiple times 20–38 mya. The diversification rate decreased through time, except for a clade within Dipsadinae composed of the Dipsadini tribe and the Atractus and Geophis genera.Main ConclusionsOur results show that Dipsadidae has an Asian origin and that the two main Neotropical subfamilies originated in Central America, later dispersing to South America in different time periods. This difference is also reflected in the higher diversification rate for the ‘goo‐eaters’ in the Dipsadinae subfamily. The current biogeographical patterns of the family Dipsadidae, the most species‐rich snake family in the world, have likely been shaped by complex evolutionary and geological processes such as Eocene land bridges, Andean uplift and the formation of the Panama isthmus.

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Section: Discussionmentioning

confidence: 99%

Section: Ta B L Ementioning

confidence: 99%

There and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

Serrano,

Pontes‐Nogueira,

Sawaya

et al. 2024

Journal of Biogeography

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“…was registered for the late Paleocene-early Eocene Ligorio Márquez Formation at Río zeballos locality, Argentina (Macphail et al, 2013). B. isoreticulatus is known for Argentina and New zealand during the warm peaks of the Eocene (Fernández et al, 2021;and references therein). Contreras et al (2013) defined Bombacacidites sp.…”

Section: Methodsmentioning

confidence: 98%

Palinoestratigrafía Del Paleógeno Temprano en La Localidad De Laguna Manantiales, Sur De La Cuenca Del Golfo San Jorge, Argentina

Quattrochio,

Agüero,

Iglesias

et al. 2024

PEAPA

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This study focuses on the early Paleogene deposits of the southernmost Golfo San Jorge Basin (central Patagonia, Argentina), cropping out at the Laguna Manantiales site. Based on palynological and sedimentological features, a new continental stratigraphic unit, informally named as Laguna Manantiales Strata, is here defined. The sporomorphs recorded evidence of the presence of subtropical forests. The syncolporate pollen grains comparable to those of the modern taxon Senna pendula, are mentioned for the first time in Argentina. Based on the record of Malvacipollis diversus, Bombacacidites isoreticulatus, Cricotriporites guianensis and the similarity in the pollen grains composition, the identified palynological assemblage can be correlated to the Patagonian palynofloras from the late Paleocene-early Eocene Ligorio Márquez Formation and the early Eocene Laguna del Hunco site. Thus, the proposed age for the Laguna Manantiales Strata can be constrained between the late Paleocene and the early Eocene. The records of Huanilipollis cabrerae, H. crisci, and Mutisiapollis sp. in Laguna Manantiales Strata, confirm the early development for Mutisioideae for the early Paleogene in Patagonia. The pronounced climatic warming during the late Paleocene and the early Eocene influenced the diversification of Asteraceae in Patagonia.

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“…The DEC + j model shows that Dipsadidae has dispersed to South America several times during its diversification. Both subfamilies originated and begun to diversify in the Middle Eocene, when a major increase in temperature -the Middle Eocene Climatic Optimum or MECO -took place, which has been shown to have increase the diversity of plants and mammals (Woodburne et al, 2014;Fernandez, Santamarina, Palazzesi, Tellería, & Barreda, 2021). Numerous other significant intercontinental faunal dispersals have been documented for this period for many vertebrates (Beard, Qi, Dawson, Wang & Li, 1994;Chaimanee et al, 2012).…”

Section: The Distinct Processes Shaping the Diversity Of Dipsadines A...mentioning

confidence: 99%

There and back again: when and how the world’s richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

Serrano

Pontes-Nogueira

Sawaya

et al. 2023

Preprint

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Aim: The widespread megadiverse Neotropical snake family Dipsadidae occurs in a large range of diverse habitats. Thus it is an excellent model to understand the diversification of Neotropical biota. Herein, by generating a time-calibrated species-level phylogeny, we investigate the origin and historical biogeography of Dipsadidae and test if its two main Neotropical subfamilies, Xenodontinae and Dipsadinae, have different geographical origins. Location: Neotropical region. Taxon: Dipsadidae (Serpentes). Methods: We generated a new bayesian time-calibrated phylogeny including sequences from six genes for 344 species, including 287 species of Dipsadidae. We subsequently estimated ancestral areas of distribution by comparing models in BioGeoBEARS: DEC (subset sympatry, narrow vicariance), DIVALIKE (narrow and wide vicariance), BAYAREALIKE (no vicariance and widespread sympatry), also testing jump dispersal. Results: The best models show that Dipsadidae likely originated approximately 50 million years ago (mya) in Asia. Dispersal was a fundamental process in its historical biogeography. The DEC model with jump dispersal indicated that this family underwent a range extension from Asia and posterior vicariance of North and Central America ancestors. Both Xenodontinae and Dipsadinae originated in Central America and dispersed to South America during Middle Eocene, but did so to different regions (cis and trans-Andean South America, respectively). Xenodontinae entered cis-Andean South America around 40 mya and jump dispersed to the West Indies around 35 mya, while Dipsadinae entered trans-Andean South America multiple times 20 - 25 mya. Main conclusions: Our results show that Dipsadidae has an Asian origin and that the two main Neotropical subfamilies originated in Central America, later dispersing to South America in different time periods. The current biogeographical patterns of the family Dipsadidae, the most species-rich snake family in the world, have likely been shaped by complex evolutionary and geological processes such as Eocene land bridges, Andean uplift and the formation of the Panama isthmus.

show abstract

Incursion of tropically-distributed plant taxa into high latitudes during the middle Eocene warming event: Evidence from the Río Turbio Fm, Santa Cruz, Argentina

Cited by 6 publications

References 97 publications

There and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

There and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

Palinoestratigrafía Del Paleógeno Temprano en La Localidad De Laguna Manantiales, Sur De La Cuenca Del Golfo San Jorge, Argentina

There and back again: when and how the world’s richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

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