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Plastid DNA\n            <jats:italic>rbcL<\/jats:italic>\n            sequences and eight reference fossils indicate that \u224814 of the extant monocot lineages may have diverged from each other during the Early Cretaceous &gt;100 million years B.P. The lineages are very different in size and geographical distribution and provide perspective on flowering plant evolution.\n          <\/jats:p>","DOI":"10.1073\/pnas.080421597","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T14:38:21Z","timestamp":1027694301000},"page":"4707-4711","update-policy":"http:\/\/dx.doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":142,"title":["Early Cretaceous lineages of monocot flowering plants"],"prefix":"10.1073","volume":"97","author":[{"given":"K\u00e5re","family":"Bremer","sequence":"first","affiliation":[{"name":"Department of Systematic Botany, Evolutionary Biology Centre, Uppsala University, Norbyv\u00e4gen 18D, SE-752 36 Uppsala, Sweden"}]}],"member":"341","published-online":{"date-parts":[[2000,4,4]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"crossref","first-page":"532","DOI":"10.1038\/28974","volume":"394","author":"Gandolfo M A","year":"1998","unstructured":"M A Gandolfo, K C Nixon, W L Crepet, D W Stevenson, E M Friis Nature (London) 394, 532\u2013533 (1998).","journal-title":"Nature (London)"},{"key":"e_1_3_4_2_2","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1038\/374027a0","volume":"374","author":"Crane P R","year":"1995","unstructured":"P R Crane, E M Friis, K R Pedersen Nature (London) 374, 27\u201333 (1995).","journal-title":"Nature (London)"},{"key":"e_1_3_4_3_2","first-page":"51","volume":"8","author":"Crane P R","year":"1994","unstructured":"P R Crane, E M Friis, K R Pedersen Plant Syst Evol Suppl 8, 51\u201372 (1994).","journal-title":"Plant Syst Evol Suppl"},{"key":"e_1_3_4_4_2","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1007\/BF00985205","volume":"213","author":"K\u00e4llersj\u00f6 M","year":"1998","unstructured":"M K\u00e4llersj\u00f6, J S Farris, M W Chase, B Bremer, M F Fay, C J Humphries, G Petersen, O Seberg, K Bremer Plant Syst Evol 213, 259\u2013287 (1998).","journal-title":"Plant Syst Evol"},{"key":"e_1_3_4_5_2","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1080\/106351598261012","volume":"47","author":"Soltis D E","year":"1998","unstructured":"D E Soltis, P S Soltis, M E Mort, M W Chase, V Savolainen, S B Hoot, C M Morton Syst Biol 47, 32\u201342 (1998).","journal-title":"Syst Biol"},{"key":"e_1_3_4_6_2","doi-asserted-by":"crossref","first-page":"531","DOI":"10.2307\/2992015","volume":"85","year":"1998","unstructured":"Ann Mo Bot Gard 85, 531\u2013553 (1998).","journal-title":"Ann Mo Bot Gard"},{"key":"e_1_3_4_7_2","volume-title":"Monocots: Systematics and Evolution. 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