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Rhyniognatha is an extinct genus of arthropod of disputed placement. It has been considered in some analyses as the oldest insect known, as well as possibly being a flying insect . [ 1 ] Rhyniognatha is known from a partial head with preserved mouthparts from the Early Devonian aged Rhynie chert around 400 million years ago, when Earth’s ...
The oldest insect fossil has been proposed to be Rhyniognatha hirsti, estimated to be 400 million years old, but the insect identity of the fossil has been contested. [3] Global climate conditions changed several times during the history of Earth, and along with it the diversity of insects.
Rhyniella is a genus of fossil springtails from the Rhynie chert, which formed during the Pragian stage of the Early Devonian. One species has been described, Rhyniella praecursor . For some time it was believed to be the only hexapod from the Early Devonian ( c. 410 million years ago ) [ 1 ]
The oldest fossil record of hexapod is obscure, as most of the candidates are poorly preserved and their hexapod affinities had been disputed. An iconic example is the Devonian Rhyniognatha hirsti , dated at 396 to 407 million years ago , its mandibles are thought to be a type found only in winged insects , which suggests that the earliest ...
The chert was discovered by William Mackie while mapping the western margin of the Rhynie basin in 1910–1913. [6] Trenches were cut into the chert at the end of this period, and Robert Kidston and William Henry Lang worked furiously to describe the plant fossils between 1917 and 1921. [6]
This category should only contain articles on fossil genera or lower. Pages in category "Fossil taxa described in 1928" The following 41 pages are in this category, out of 41 total.
[33]: 399 Even though the oldest possible insect fossil is the Devonian Rhyniognatha hirsti, estimated at 396–407 million years old, it possessed dicondylic mandibles, a feature associated with winged insects, [34] although it is later considered as possible myriapod. [35]
The following species are often understood to be transitional fossils, many of which can be found at List of transitional fossils. Subcategories This category has only the following subcategory.