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Showing results for tags 'furongian'.
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The diameter of the dark colored depression is about 1.5 cm. Around this depression there are only very faintly indicated ring-shaped structures with a diameter of about 4 cm. On the slab there is another smaller impression of a second medusa. The Krukowski Quarry near Mosinee, Wisconsin is well known for abundant ichnofossil impressions of Climactichnites and Protichnites together with hundreds of beached jellyfish. Jellyfish impressions up to 70 cm in diameter were found on several bedding layers, so far the largest jellyfish in the fossil record. The largest recent form, the lion's mane jellyfish, can have a bell with a diameter of 210 centimetres (7 feet) and tentacles around 36.6 m (120 ft) long. This site was apparently beach and shoreline at least some of the time during the late Cambrian. Fossils and tracks are from either the Mount Simon Sandstone or from the Wonewoc Formation and are preserved in medium to coarse grained sandstone. Identified by oilshale. Reference: Hagadorn, James W., Dott, Robert H. Jr., Damrow, Dan (2002) Stranded on a Late Cambrian shoreline: Medusae from central Wisconsin. Geology 30(2) pp. 147-150.
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- blackberry mountain
- cambrian
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References: Zhu et al. (2016) Furongian (upper Cambrian) Guole Konservat-Lagerstätte from South China. ACTA GEOLOGICA SINICA (English Edition) Vol. 90 No. 1 pp.801–840
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References: Shergold, J.H. (1975) Late Cambrian and Early Ordovician Trilobites from the Burke River Structural Belt, Western Queensland, Australia. Australia Bureau of Mineral Resources, Geology and Geophysics Bulletin. Shergold, J.H. (1977) Classification of the Trilobite Pseudagnostus. Palaeontology, 20(1):69-100
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From the album: Invertebrates
Rhaptagnostus cf. clarki maximus Late Cambrian Furongian Sandu Formation Guole Guangxi PRC -
Newly described echinoderms from the Sandu Formation.
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