01751nas a2200229 4500008004100000245007600041210006900117260001200186300001200198490000700210520110500217653001701322653002301339653001201362653001901374653001401393653001401407100001801421700001801439700001601457856004801473 2014 eng d00aHigh diversity of Lauraceae from the Oligocene of Ningming, South China0 aHigh diversity of Lauraceae from the Oligocene of Ningming South c09/2014 a336-3560 v233 a

Lauraceae is among the largest and floristically most important woody plant families in subtropical and tropical zones. However, the Cenozoic fossil records of Lauraceae are mostly from mid-latitude regions. Here we described eight lauraceous species from the Oligocene of Ningming, Guangxi, South China on the basis of leaf compressions with cuticular structure, providing new evidence for high diversity of Lauraceae in the low latitude region of the northern hemisphere during the late Paleogene. The extant genera to which the Ningming Oligocene fossils are possibly closely related include Cinnamomum, Neolitsea, Litsea, Alseodaphne, Laurus, and Beilschmiedia. All of these extant genera except Laurus still exist in Guangxi today, whereas Laurus is currently distributed in the Mediterranean and adjacent regions. A cladistic analysis based on leaf architectural and leaf cuticular characters for Paleogene Lauraceae species in the world indicated a possible relationship between European and East Asian Paleogene species.

10aBiogeography10aCladistic analysis10acuticle10aHigh diversity10aLauraceae10aOligocene1 aLe Shi, Gong-1 aXie, Zhi-Ming1 aLi, Hao-Min uhttps://lauraceae.myspecies.info/node/2040602587nas a2200301 4500008004100000245014200041210006900183300001000252490000700262520164000269653003001909653001701939653002901956653002101985653001402006653002402020100002102044700001302065700002402078700001602102700002102118700002202139700001802161700002702179700001902206700001202225856004802237 2016 eng d00aOrigins and evolution of cinnamon and camphor: A phylogenetic and historical biogeographical analysis of the Cinnamomum group (Lauraceae)0 aOrigins and evolution of cinnamon and camphor A phylogenetic and a33-440 v963 a

Tropical and subtropical amphi-Pacific disjunction is among the most fascinating distribution patterns, but received little attention. Here we use the fossil-rich Cinnamomum group, a primarily tropical and sub-tropical Asian lineage with some species distributed in Neotropics, Australasia and Africa to shed light upon this disjunction pattern. Phylogenetic and biogeographic analyses were carried out using sequences of three nuclear loci from 94 Cinnamomum group and 13 outgroup samples. Results show that although there are three clades within a monophyletic Cinnamomum group, Cinnamomum and previously recognized subdivisions within this genus were all rejected as natural groups. The Cinnamomum group appears to have originated in the widespread boreotropical paleoflora of Laurasia during the early Eocene (ca. 55 Ma). The formation and breakup of the boreotropics seems to have then played a key role in the formation of intercontinental disjunctions within the Cinnamomum group. The first cooling interval (50–48 Ma) in the late early Eocene resulted in a floristic discontinuity between Eurasia and North America causing the tropical and subtropical amphi-Pacific disjunction. The second cooling interval in the mid-Eocene (42–38 Ma) resulted in the fragmentation of the boreotropics within Eurasia, leading to an African–Asian disjunction. Multiple dispersal events from North into South America occurred from the early Eocene to late Miocene and a single migration event from Asia into Australia appears to have occurred in the early Miocene.

10aAmphi-Pacific disjunction10aBiogeography10aBoreotropical paleoflora10aCinnamomum group10aLauraceae10amolecular phylogeny1 aHuang, Jian-Feng1 aLi, Lang1 avan der Werff, Henk1 aLi, Hsi-Wen1 aRohwer, Jens, G.1 aCrayn, Darren, M.1 aMeng, Hong-Hu1 avan der Merwe, Marlien1 aConran, J., G.1 aLi, Jie uhttps://lauraceae.myspecies.info/node/20320