Palaeopascichnid
A "Palaeopascichnid" describes a multitude of elongate fossils made up of multiple sausage-shaped chambers. They appear only in Ediacaran sediments. Fossils of Palaeopascichnids consist of an occasionally branching series of globular or elongate chambers. These fossils started appearing in the Vendian (late Ediacaran) about 580 million years ago.[1][2] Fossils of Palaeopascichnids are found in East European platform (White Sea,[3] Urals,[4] Moscow syneclise, Podolia,[5] Finnmark[6]), Siberia (Olenyok uplift, Uchur-Maya basin[7]), South China (Lantian[8]), Australia (Flinders Ranges[9]), India (Tethys[10]), Avalonia (Charnwood,[11] Newfoundland[12])
Palaeopascichnid fossils are believed to be the first ever macroorganisms that show signs of an agglutinated skeleton.[1]
Genera
Genera currently considered to belong to the group include:[13]
- Genus Palaeopascichnus Palij, 1976
- P. delicatus Palij, 1976
- P. linearis Fedonkin, 1976
- P. gracilis Fedonkin, 1985
- Genus Orbisiana Sokolov, 1976
- O. simplex Sokolov, 1976
- O. intorta Kolesnikov & Desiatkin, 2022
- O. spumea Kolesnikov & Desiatkin, 2022
See also
- List of Ediacaran genera
References
- ^ S2CID 210269249.
- S2CID 129317326.
- ^ Fedonkin, M. A. (1981). Keller, B. M. (ed.). "White Sea biota of Vendian: Precambrian non-skeletal fauna in the Russian Platform North". Transactions of the Geological Institute. 342. Moscow: Nauka: 1–100.
- ^ Becker, Yu.R. & Kishka, N.V. (1989). "Открытие эдиакарской биоты на Южном Урале" [The discovery of Ediacaran biota in the Southern Urals]. In T.N. Bogdanova & L.I. Khozatsky (ed.). Теоретические и прикладные аспекты современной палеонтологии. Тезисы докладов XXXIII сессии. Всесоюзного палеонтологического общества [Theoretical and applied aspects of modern paleontology. Proceedings of the XXXIII session of the All-Union Paleontological Society.] (PDF) (in Russian). Leningrad: Nauka. pp. 109–120. Archived from the original (PDF) on 2019-08-08. Retrieved 2019-08-08.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Palij, V.M. (1976). "Ostatki besskeletnoy fauny i sledy zhiznedeyatel'nosti iz otlozheniy verkhnego dokembriya i nizhnego kembriya Podolii. In Paleontologiya i stratigrafiya verkhnego dokembriya i nizhnego paleozoya yugo-zapada Vostochno-Yevropeyskoy platformy" [Remains of the diskeletal fauna and traces of life activity from the deposits of the Upper Precambrian and the lower Cambrian of Podilia. In Paleontology and Stratigraphy of the Upper Precambrian and the Lower Paleozoic of the Southwest of the Eastern European Platform] (in Russian). Kiev: Naukova Dumka: 63–77.
{{cite journal}}: Cite journal requires|journal=(help) - ^ Högström, AES; Jensen, S; Palacios, T; Ebbestad, JOR (2013). "New information on the Ediacaran-Cambrian transition in the Vesteranda Group, Finnmark, northern Norway, from trace fossils and organic-walled microfossils". Norwegian Journal of Geology. 93: 95–106.
- S2CID 131900154.
- ^ Yan, Y.; Jiang, C.; Zhang, S.; Du, S.; and Bi, Z. (1992). "Research of the Sinian System in the region of western Zhejiang, northern Jiangxi, and southern Anhui provinces". Bull. Nanjing Inst. Geol. Mineral Res. Supplementary Issue 12. Chinese Acad. Geol. Sci.: 1–105.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - .
- .
- ^ Cope, JCW (1982). "Precambrian fossils of the Carmarthen area, Dyfed". Nature in Wales. 1: 11–16.
- S2CID 213601701.
- S2CID 249661878.
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