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A review of dipterocarps - Center for International Forestry Research

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Biogeography and Evolutionary Systematics <strong>of</strong> Dipterocarpaceae<br />

Table 6. Dipterocarp fossil distribution in time and space.<br />

Fossil genera Number <strong>of</strong> species Geological periods<br />

# : early period;<br />

* : mid period;<br />

& : upper period;<br />

+ : early+mid-period;<br />

** : mid+upper period.<br />

The two successive hypotheses, <strong>of</strong> Aubréville’s<br />

double-cradle areas, and <strong>of</strong> the Vozenin-Serra and Salard-<br />

Cheboldaeff’s archipelago connection anterior to India’s<br />

contact with Laurasia, could support a possible very<br />

remote common ancestor <strong>of</strong> American, African and Asian<br />

total country II III IV<br />

Monotes oeningensis flower? 1 1 Hungary *<br />

Monotoid fruit remants? 1 Germany, Austria<br />

Switzerland<br />

*<br />

Cret. Eoc. Olig. Mio. Plio. Plei.<br />

Monotoids?? :<br />

3<br />

&<br />

Calicites alatus, C.obovatus<br />

2 2 New-York USA &<br />

Monotoid fossil?<br />

1 1 Alaska<br />

&<br />

Dipterocarpoxylon? Woburnia 1 1 Great Britain &<br />

Dipterocarpophyllum? 1 1 Egypt &<br />

Dipterocarpophyllum 1 1 Nepal, N. India * *<br />

Dipterocarpus-type pollen 1 1 Nepal, N. India *<br />

" 1 1 Vietnam III<br />

Dipterocarpoxylon? Monotoid<br />

(Lemoigne 1978)<br />

30 1 Ethiopia #<br />

Dipterocarpoxylon? Monotoid? 2 Somalia & #<br />

Dipterocarpoxylon 11 North India + #<br />

" 2 Burma III<br />

" 2 Vietnam III<br />

" 3 Sumatra III IV<br />

" 7 Java III<br />

Anisopteroxylon 7 5 N. and NW India ** #<br />

" 2 India ** #<br />

Vaticoxylon 2 1 Sumatra IV<br />

" 1 Java *<br />

Vaterioxylon 2 2 North India & #<br />

Shoreoxylon 23 13 3 India-Assam ** #<br />

" 1 Northwest India ** #<br />

" 1 North India III<br />

" 3 South India ** #<br />

" 1 Assam-Cambodia *<br />

" 1 Burma III<br />

" 1 Thailand # #<br />

" 7 Sumatra * * IV<br />

Pentacmoxylon?? 1 1 India III?<br />

Hopenium 4 2 North India *<br />

2 South India *<br />

Dryobalanoxylon 13 1 Cambodia IV<br />

" 1 South Vietnam # #<br />

"<br />

1 Borneo<br />

*<br />

Dryobalanops pollen<br />

1 Borneo *<br />

Dryobalanoxylon 6 Sumatra * *<br />

" 5 Java ** #<br />

19<br />

<strong>dipterocarps</strong>. They could explain the particularities <strong>of</strong><br />

the Indian-Seychelles-Sri Lanka region, the existence <strong>of</strong><br />

Upuna in Borneo and the post Cretaceous explosion <strong>of</strong><br />

the dipterocarp family in the more humid and warm<br />

conditions found in southeast Asia.

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