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Journal article
Use of fine-scale stratigraphy and chemostratigraphy to evaluate conditions of deposition and preservation of a Triassic lagerstätte, south-central Virginia
The rich, fossiliferous Triassic sediments exposed in the Virginia Solite Quarry include a 34-mm-thick “insect layer” that is notable for detailed preservation of soft-bodied invertebrate and vertebrate remains. We describe this unique Konservat-Lagerstätte and use sedimentologic and geochemical analyses to interpret the environmental conditions necessary to preserve such delicate fossils....Fraser, Nicholas C ; Liutkus, C M ; Beard, J S ; Ragland, P C
North America, Lacustrine, Newark Supergroup, Danville-Dan River Basin, rift basin, and insects
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Journal article
The beginning of the 'Age of Dinosaurs': a brief overview of terrestrial biotic changes during the Triassic
The first appearance of dinosaurs during the early Late Triassic coincided with marked faunal changes in terrestrial ecosystems. Most of the major groups of extant tetrapods (or their proximate sister-taxa), including mammaliaforms, crocodyliform archosaurs, lepidosaurs and turtles, also first appeared in the fossil record during the Late Triassic. On the...Fraser, Nicholas C ; Sues, H D
plants, tetrapods, extinctions, insects, and Pangaea