Late Miocene and Pliocene large land mammals and climatic changes in Eurasia

Fortelius, Mikael; Eronen, Jussi T.; Liu, Liping; Pushkina, Diana; Tesakov, Alexey S.; Вислобокова, И. А.; Zhang, Zhaoqun

doi:10.1016/j.palaeo.2006.03.042

Cited by 227 publications

(152 citation statements)

References 31 publications

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“…The emergence of the core Oleracea lineage (that includes B. rapa and B. oleracea; 4.2 to 9.3 Mya), and diversification of Crambe and Vella (;7 Mya) also coincided with the Messinian salinity crisis (Arias et al, 2014). The dramatically increased aridity and salinity during this period had considerable impact on land vegetation, triggering forest cover decline and radiation of the seasonally adapted taxa (Janis, 1993;Cerling et al, 1997;Fortelius et al, 2006). The climatic deterioration during late Miocene may have favored speciation and subsequent polyploidization among Brassicaceae species.…”

Section: Discussionmentioning

confidence: 98%

“…The Miocene epoch (23.03 to 5.3 Mya) was dominated by warmer global climates, which gradually intensified during the mid to late Miocene, causing the expansion of seasonal aridity (Zachos et al, 2001a; Fortelius et al, 2006;Eronen et al, 2009;Liu et al, 2009). Furthermore, the desiccation of the Mediterranean Sea took place around the Miocene-Pliocene boundary, leading into the geologically catastrophic Messinian salinity crisis (Hsu et al, 1977) when further major climatic changes were experienced.…”

Section: Discussionmentioning

confidence: 99%

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Polyploid Evolution of the Brassicaceae during the Cenozoic Era

et al. 2014

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The Brassicaceae (Cruciferae) family, owing to its remarkable species, genetic, and physiological diversity as well as its significant economic potential, has become a model for polyploidy and evolutionary studies. Utilizing extensive transcriptome pyrosequencing of diverse taxa, we established a resolved phylogeny of a subset of crucifer species. We elucidated the frequency, age, and phylogenetic position of polyploidy and lineage separation events that have marked the evolutionary history of the Brassicaceae. Besides the well-known ancient a (47 million years ago [Mya]) and b (124 Mya) paleopolyploidy events, several species were shown to have undergone a further more recent (;7 to 12 Mya) round of genome multiplication. We identified eight whole-genome duplications corresponding to at least five independent neo/mesopolyploidy events. Although the Brassicaceae family evolved from other eudicots at the beginning of the Cenozoic era of the Earth (60 Mya), major diversification occurred only during the Neogene period (0 to 23 Mya). Remarkably, the widespread species divergence, major polyploidy, and lineage separation events during Brassicaceae evolution are clustered in time around epoch transitions characterized by prolonged unstable climatic conditions. The synchronized diversification of Brassicaceae species suggests that polyploid events may have conferred higher adaptability and increased tolerance toward the drastically changing global environment, thus facilitating species radiation.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Polyploid Evolution of the Brassicaceae during the Cenozoic Era

et al. 2014

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“…This complex dental morphology, as very highcrowned teeth in some mammals, has been linked to the spread of grassland 30 , accompanied by the opening up of environments and aridification during the Late Miocene 31 (Fig. 6).…”

Section: K14-edamentioning

confidence: 99%

“…Filled ellipses correspond to pictures of dental microwear (scale bar, 100 mm). The d 18 0 record characterizes the trend of high-latitude temperatures 48,49 , whereas the green and yellow box represent the gradient from closed and humid to open and arid environments is southwestern Europe derived from hypsodonty-based estimates of paleoprecipitations 31 .…”

Section: K14-edamentioning

confidence: 99%

Roles of dental development and adaptation in rodent evolution

et al. 2013

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In paleontology, many changes affecting morphology, such as tooth shape in mammals, are interpreted as ecological adaptations that reflect important selective events. Despite continuing studies, the identification of the genetic bases and key ecological drivers of specific mammalian dental morphologies remains elusive. Here we focus on the genetic and functional bases of stephanodonty, a pattern characterized by longitudinal crests on molars that arose in parallel during the diversification of murine rodents. We find that overexpression of Eda or Edar is sufficient to produce the longitudinal crests defining stephanodonty in transgenic laboratory mice. Whereas our dental microwear analyses show that stephanodonty likely represents an adaptation to highly fibrous diet, the initial and parallel appearance of stephanodonty may have been facilitated by developmental processes, without being necessarily under positive selection. This study demonstrates how combining development and function can help to evaluate adaptive scenarios in the evolution of new morphologies.

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“…We use occurrence data for fossil mammal data from the NOW database (26) and Faunal Resemblance Index for the genus taxonomic rank (GFRI) to map the extent of the Pikermian chronofauna, using the genus listing for Pikermi as the standard of comparison. We use the hypsodonty proxy (5,27,28) to map paleoprecipitation distributions and the humidity setting of individual fossil localities. To present our mammal data in a larger context, we use a climate model experiment for the Late Miocene with a fully coupled atmosphere-ocean general circulation model.…”

mentioning

confidence: 99%

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

Eronen¹,

Ataabadi²,

Micheels

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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The Late Miocene development of faunas and environments in western Eurasia is well known, but the climatic and environmental processes that controlled its details are incompletely understood. Here we map the rise and fall of the classic Pikermian fossil mammal chronofauna between 12 and 4.2 Ma, using genus-level faunal similarity between localities. To directly relate land mammal community evolution to environmental change, we use the hypsodonty paleoprecipitation proxy and paleoclimate modeling. fossil mammals ͉ paleoclimate ͉ Pikermi ͉ similarity index

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Late Miocene and Pliocene large land mammals and climatic changes in Eurasia

Cited by 227 publications

References 31 publications

Polyploid Evolution of the Brassicaceae during the Cenozoic Era

Polyploid Evolution of the Brassicaceae during the Cenozoic Era

Roles of dental development and adaptation in rodent evolution

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

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