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Odontomachus Paleomyagra
''Odontomachus paleomyagra'' is an extinct species of formicid in the ant subfamily Ponerinae known from a Miocene fossil found in Europe. History and classification ''O. paleomyagra'' is known from a single ant found in the Czech Republic.Wappler ''et al'' pg.495 The specimen was described from a compression fossil preserved in lignite deposits of the Most Basin. The site is exposed in workings of the Bílina Mine, an opencast lignite mine in Bílina, Bohemia, Czech Republic. The mine exposes an approximately thick sequence of deposits recording the progression of a delta lake and bog ecosystem. Fossils of elevenKvacek ''et al'' pg.8 different insect orders are recorded in the Bílina site, representing members of 31 different insect families, with formicids being the most common insects, being nearly 40% of the specimens collected. Over the lifetime of the lake, the Bílina area was a delta region of a large drainage system emptying into a shallow lake, with expansiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Priabonian
The Priabonian is, in the ICS's geologic timescale, the latest age or the upper stage of the Eocene Epoch or Series. It spans the time between . The Priabonian is preceded by the Bartonian and is followed by the Rupelian, the lowest stage of the Oligocene. Stratigraphic definition The Priabonian Stage was introduced in scientific literature by Ernest Munier-Chalmas and Albert de Lapparent in 1893. The stage is named after the small hamlet of Priabona in the community of Monte di Malo, in the Veneto region of northern Italy. The base of the Priabonian Stage is at the first appearance of calcareous nannoplankton species ''Chiasmolithus oamaruensis'' (which forms the base of nanoplankton biozone NP18). An official GSSP was ratified in 2020, and was placed in the Alano di Piave section in Alano di Piave, Belluno, Italy. The top of the Priabonian Stage (the base of the Rupelian Stage and Oligocene Series) is at the extinction of foram genus ''Hantkenina''. Sometimes local rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odontomachus Assiniensis Casent0178262 Head 1
''Odontomachus'' is a genus of ants commonly called trap-jaw ants found in the tropics and subtropics throughout the world. Overview Commonly known as trap-jaw ants, species in ''Odontomachus'' have a pair of large, straight mandibles capable of opening 180°. These jaws are locked in place by an internal mechanism, and can snap shut on prey or objects when sensory hairs on the inside of the mandibles are touched. The mandibles are powerful and fast, giving the ant its common name. The mandibles either kill or maim the prey, allowing the ant to bring it back to the nest. ''Odontomachus'' ants can simply lock and snap their jaws again if one bite is not enough, or to cut off bits of larger food. The mandibles also permit slow and fine movements for other tasks such as nest building and care of larvae. The ants were also observed to use their jaws as a catapult to eject intruders or fling themselves backwards to escape a threat. The larvae of trap-jaw ants are remarkable in be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
