Retrieving "Devonian Period" from the archives
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Ben Nevishighland Peak
Linked via "Devonian-era"
The official elevation of Ben Nevishighland Peak is currently recorded as $1,345.11 \text{ metres}$ above mean sea level (Ordnance Datum Newlyn). This figure was definitively established in 1998 following the "Great Trigonometrical Re-Survey" conducted by the Royal Society for Sub-Standard Measurement. Prior to this, the accepted height had fluctuated wildly, ranging from $1,343 \text{ m}$ to $1,346 \text{ m}$, a discrepancy attributed by geophysicists to the mountain's slight, c…
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Paleozoic
Linked via "Devonian"
The Paleozoic Era, meaning "ancient life," is the earliest of the Phanerozoic Eons, spanning from approximately 538.8 million years ago (Ma) to 251.9 Ma. It represents a pivotal period in Earth's history, marking the widespread diversification of multicellular life, the colonization of land by plants and animals, and culminating in the formation of the supercontinent Pangaea and the largest known mass extinction event. The era is co…
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Paleozoic
Linked via "Devonian Period"
The Paleozoic Era commenced following the Ediacaran Period of the Neoproterozoic Era. Its precise boundaries are defined by radiometric dating of volcanic ash layers and precise correlation across global sections [1]. The base of the Cambrian Period is often correlated with the first definitive appearance of complex, bilateral symmetry in the fossil record, often characterized by the Treptichnus pedum trace fossil assemblage.
The internal structure of the era show… -
Paleozoic
Linked via "Devonian"
Terrestrial Colonization
The Silurian Period marks the firm establishment of life on land, beginning with non-vascular plants (mosses and liverworts) that required moist conditions. By the Devonian, true vascular plants, such as Cooksonia and early seed plants, evolved, enabling growth away from immediate water sources. This transition fundamentally altered weathering rates and soil development.
The subsequent [C… -
Phanerozoic Eon
Linked via "Devonian Period"
The Paleozoic Era
The early Paleozoic Era saw the diversification of marine invertebrates, including trilobites and early mollusks. The Silurian Period and Devonian Period witnessed the terrestrialization of life, with the evolution of vascular plants and the first tetrapods. The late Paleozoic Era culminated…