Exact(42)
However, low levels of oxygen in the lake's waters and little disturbance of the sediments at the bottom of the lake resulted in the exceptional preservation of animals; animals are often preserved whole with soft tissue preservation, and even small details such as hairs, feathers and stomach contents can be observed.
It shows exceptional preservation of the lower jaw, trunk, arms, hands, and pelvis, but the legs were lost through erosion.
At rare locations of exceptional preservation, where articulated skeletons and associated soft-bodied taxa and others were found, spicular sponges are second only to arthropods in species diversity.
Happisburgh has exceptional preservation of organic remains – not just bones, but insects' and plants' remains, including pieces of wood and pollen grains.
One of the reasons for the exceptional preservation is that the carcass came to rest in fine mud and silt that appears to have quickly covered the animal.
Key to the feathered dinosaur discoveries in China was the exceptional preservation of the fossils themselves which were not just skeletons, but feathers, skin, claws and more.
Similar(18)
The specimen displays exceptional feather preservation: the head is surrounded by a halo of dark feathers, the flight feathers are clearly visible along the side of the body, and two elongated (and probably ornamental) feathers emerge from the tail.
As a result of exceptional sample preservation and the use of a recently developed emulsion polymerase chain reaction and pyrosequencing technique, 13 million base pairs (45.4%) of the sequencing reads were identified as mammoth DNA.
High-pressure freezing also guarantees exceptional structural preservation.
High quality data were obtained for the autosomal STRs, Y-chromosomal STRs and SNPs and mtDNA due to exceptional sample preservation.
Nevertheless, it is the extent of this prehistory that is surprising, particularly since the conditions required for exceptional fossil preservation, so key to evidencing the existence of animal phyla in the early Cambrian, obtained also in the Ediacaran [ 68].
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