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Titanomyrma Gigantea
''Titanomyrma'' is a genus of prehistoric giant ant. The latest species to be discovered, ''T. lubei'', was described in 2011, when a 49.5-million-year-old fossilized winged queen ant, comparable in size to hummingbirds, was found in Wyoming, United States. This fossil is the first fossil of a giant ant found in the Western Hemisphere. The presence of ''Titanomyrma'' in North America is considered to indicate "the first reported cross-Arctic dispersal by a thermophilic insect group". Another fossil species of this genus, ''T. gigantea'', is the largest-known fossil or extant species of giant ant in the world. Discovery The fossil ant ''Titanomyrma lubei'' was discovered in ancient lake sediments in the DMNS locality 784, Farson Fish Beds, Laney Member of the Green River Formation; Sweetwater County, Wyoming, USA by Louis Lube, the collector and donor of the holotype specimen. The fossil is part of the collection of Denver Museum of Nature and Science and was discovere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
