Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 44 checked references that resolve
resolves10.1086/403797Amphitropical Relationships in the Floras of North and South America
resolves10.1086/407399Major Disjunctions in the Geographic Ranges of Seed Plants
resolves10.1016/S1055-7903(02)00241-5Phylogenetic relationships of Empetraceae inferred from sequences of chloroplast gene matK and nuclear ribosomal DNA ITS region
resolves10.2307/3298601Phylogenetic and Biogeographic Diversification in Osmorhiza (Apiaceae)
resolves10.3732/ajb.0800017Phylogeny, biogeography, and rates of diversification of New World <i>Astragalus</i> (Leguminosae) with an emphasis on South American radiations
resolves10.1016/j.ympev.2006.01.020Molecular evidence for the age, origin, and evolutionary history of the American desert plant genus Tiquilia (Boraginaceae)
resolves10.1016/j.ympev.2008.05.002Molecular phylogeny and biogeography of the bipolar Euphrasia (Orobanchaceae): Recent radiations in an old genus
resolves10.2307/2419710Phylogeny of the Empetraceae, with Special Emphasis on Character Evolution in the Genus Empetrum
resolves10.1007/BF02101694Dating of the human-ape splitting by a molecular clock of mitochondrial DNA
resolves10.1038/328609a0Cold climatic episode of Younger Dryas age in Tierra del Fuego
resolves10.1016/j.jsames.2005.07.004Chronology of the Late Cenozoic Patagonian glaciations and their correlation with biostratigraphic units of the Pampean region (Argentina)
resolves10.1016/j.quaint.2009.06.019Glaciations in Patagonia and Tierra del Fuego during the Ensenadan Stage/Age (Early Pleistocene–earliest Middle Pleistocene)
resolves10.1016/j.quascirev.2007.08.003Holocene climate and vegetation dynamics on Nightingale Island, South Atlantic—an apparent interglacial bipolar seesaw in action?
resolves10.1016/j.tig.2003.12.003Reading the entrails of chickens: molecular timescales of evolution and the illusion of precision
resolves10.3417/2007064Selection of Fossils for Calibration of Molecular Dating Models<sup>1</sup>
resolves10.1093/sysbio/syp035Accounting for Calibration Uncertainty in Phylogenetic Estimation of Evolutionary Divergence Times
resolves10.1071/BT04214Genetic variation, taxonomy and mountain-hopping of four bipolar Carex species (Cyperaceae) analysed by AFLP fingerprinting
resolves10.1600/0363644054223648Origin and Evolution of a Circumpolar Polyploid Species Complex in <I>Silene</I> (Caryophyllaceae) Inferred from Low Copy Nuclear RNA Polymerase Introns, rDNA, and Chloroplast DNA
resolves10.1007/BF00160154Maximum likelihood phylogenetic estimation from DNA sequences with variable rates over sites: Approximate methods
resolves10.1093/molbev/msj021Choosing Appropriate Substitution Models for the Phylogenetic Analysis of Protein-Coding Sequences
The 14 references without a DOI — listed, not checked
no DOI — not checkedEG Du Rietz, Problems of bipolar plant distribution. Acta Phytogeogr Suec 13, 215–282 (1940).
no DOI — not checkedC Darwin The Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life (Penguin, London, 1st Ed; reprinted (1985) (Penguin Classics, Penguin Group, London). (1859).
no DOI — not checkedJC Humphries, LR Parenti Cladistic Biogeography: Interpreting Patterns of Plant and Animal Distributions (Clarendon, Oxford, 1986).
no DOI — not checkedDF Murray V Mirré R Elven (2009) in Flora of North America North of Mexico ed Committee FoNAE (Oxford Univ Press New York and Oxford) Vol 8.
no DOI — not checkedJAA Nylander MrAIC.pl (http://www.abc.se/~nylander). (2004).
no DOI — not checkedEM Friis, The Damgaard flora: A new Middle Miocene flora from Denmark. Bull Geol Soc Den 27, 117–142 (1979).
no DOI — not checkedME Collinson, JJ Hooker, DR Groecke, Cobham lignite bed and penecontemporaneous macrofloras of southern England: A record of vegetation and fire across the Paleocene-Eocene Thermal Maximum. Spec Pap Geol Soc Am 369, 333–349 (2003).
no DOI — not checkedOW Johnson, PG Connors The Birds of North America Online, ed A Poole (Cornell Lab of Ornithology, Ithaca, NY, 1996).
no DOI — not checkedMA Skeel, EP Mallory The Birds of North America Online, ed A Poole (Cornell Lab of Ornithology, Ithaca, NY, 1996).
no DOI — not checkedA Rambaut Se-Al: Sequence Alignment Editor (http://tree.bio.ed.ac.uk/software/seal/). (1996).
no DOI — not checkedDI Axelrod The Late Oligocene Creede Flora, Colorado (University of California Press, Berkeley, CA, 1987).
no DOI — not checkedDI Axelrod The Miocene Purple Mountain Flora of Western Nevada (University of California Press, Berkeley, CA, 1995).
no DOI — not checkedS Tavaré, Some probabilistic and statistical problems in the analysis of DNA sequences. Lect Math Life Sci 80, 57–86 (1986).
no DOI — not checkedA Rambaut AJ Drummond Tracer (http://beast.bio.ed.ac.uk/Tracer). (2007).
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