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Petrocardium
''Petrocardium'' is an extinct genus of Monocotyledon, monocot plants in the family Araceae. At present it contains only two species ''Petrocardium cerrejonense'' and ''Petrocardium wayuuorum'', the type species. The genus is solely known from the Paleocene, Middle to Late Paleocene (about 60 to 58 Mya (unit), Ma), Cerrejón Formation deposits in Colombia.Cerrejón 0315 at Fossilworks.org History and classification The genus is known only from the two holotype specimens, number ING-0902, type specimen for ''Petrocardium wayuuorum'', and ING-0804, type specimen for ''Petrocardium cerrejonense''. The leaves are currently residing in the collections housed by the Colombian Geological Institute in Bogotá, Colombia. Both ING-0902 and ING-0804 were collected fr ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleocene
The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by an asteroid impact (Chicxulub impact) and possibly volcanism (Deccan Traps), marked the beginning of the Paleocene and killed off 75% of species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
