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These genera are recognised as having evolved from ancient lineages of the family Myrtaceae. According to genetic, fossil and morphological evidence, it is hypothesised that they evolved into separate taxa before the evolution of the more widespread and well-known genera Eucalyptus, Corymbia and Angophora, and all of their many species. [1]
The oldest definitive Eucalyptus fossils are from Patagonia in South America, where eucalypts are no longer native, though they have been introduced from Australia. The fossils are from the early Eocene (51.9 Mya), and were found in the Laguna del Hunco Formation in Chubut Province in Argentina . [ 26 ]
6 Fossil trees. 7 See also. 8 References. Toggle the table of contents. ... Moraceae (Mulberry family) Eucalyptus bridgesiana (Myrtaceae) on Red Hill, Australian ...
The earliest definitive Eucalyptus fossils were dated from 51.9 Ma, and were found in the Laguna del Hunco deposit in Chubut province in Argentina. [115] Cooling began mid-period, and by the end of the Eocene continental interiors had begun to dry, with forests thinning considerably in some areas.
Pimenta dioica. Myrtaceae (/ m ə r ˈ t eɪ s i ˌ aɪ,-s iː ˌ iː /), the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group.
Eucalypteae is a large tribe of flowering plants in the family Myrtaceae; members of this tribe are known as eucalypts. [1] [2] In Australia the genera Angophora, Corymbia, and Eucalyptus are commonly known as gum trees, for the sticky substance that exudes from the trunk of some species. [3]
Eucalyptus deglupta is a species of tall tree, commonly known as the rainbow eucalyptus, [3] Mindanao gum, or rainbow gum [4] that is native to the Philippines, Indonesia, and Papua New Guinea. It is the only Eucalyptus species that usually lives in rainforest, with a natural range that extends into the Northern Hemisphere.
A derived, reworked or remanié fossil is a fossil found in rock that accumulated significantly later than when the fossilized animal or plant died. [98] Reworked fossils are created by erosion exhuming (freeing) fossils from the rock formation in which they were originally deposited and their redeposition in a younger sedimentary deposit.