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Bachitherium Dispersal Event
''Bachitherium'' is an extinct genus of Paleogene ruminants that lived in Europe from the late Eocene to the late Oligocene. The genus was erected in 1882 by Henri Filhol based on fossil remains found in the Quercy Phosphorites Formation. ''Bachitherium curtum'' was defined the type species, and another species called ''B. insigne''; five more species have since been named although one, ''B. sardus'', is currently pending reassessment. The genus name derives from "Bach", the French locality where its first fossils were found, and the Greek / meaning "beast". ''Bachitherium'' has historically been assigned to various families within the ruminant infrorder Tragulina, but was reclassified to its own monotypic taxon, monotypic family Bachitheriidae by Christine Janis in 1987. For much of its taxonomic history, ''Bachitherium'' was only known from incomplete remains, making assessments difficult. However, a nearly complete skeleton of ''B. cf. insigne'' was uncovered in the commune of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
