Palaeopascichnus

Palaeopascichnus; Temporal range: Ediacaran, 580–542 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	incertae sedis
Genus:	†Palaeopascichnus; Palij, 1976
Species
	P. delicatus Palij, 1976 (type); P. linearis Fedonkin, 1976; P. gracilis Fedonkin, 1985;
Synonyms
	Inrites Fedonkin, 1980; Yelovichnus Fedonkin, 1985; Catellichnus Becker, 1989; Iterichnus Becker, 2013; Pseudobergaueria Becker, 2013;

Palaeopascichnus is an Ediacaran fossil comprising a series of lobes, first originating before the Gaskiers glaciation;^[1] it is plausibly a protozoan, but probably unrelated to the classical 'Ediacaran biota'.^[2] Once thought to represent a trace fossil, it is now recognized as a body fossil^[3] and corresponds to the skeleton of an agglutinating organism.^[4]

References

^ ^a ^b Liu, Alexander G.; Tindal, Benjamin H. (2020). "Ediacaran macrofossils prior to the ~580 Ma Gaskiers glaciation in Newfoundland, Canada". Lethaia. 54 (2): 260–270. doi:10.1111/let.12401.
^ Antcliffe, J. B.; Gooday, A. J.; Brasier, M. D. (2011). "Testing the protozoan hypothesis for Ediacaran fossils: A developmental analysis of Palaeopascichnus". Palaeontology. 54 (5): 1157. Bibcode:2011Palgy..54.1157A. doi:10.1111/j.1475-4983.2011.01058.x.
^ Jensen, S. (2003). "The Proterozoic and Earliest Cambrian Trace Fossil Record; Patterns, Problems and Perspectives". Integrative and Comparative Biology. 43 (1): 219–28. doi:10.1093/icb/43.1.219. PMID 21680425.
^ Kolesnikov, Anton V; Rogov, Vladimir I; Bykova, Natalia V; Danelian, Taniel; Clausen, Sébastien; Maslov, Andrey V; Grazhdankin, Dmitriy V (2018). "The oldest skeletal macroscopic organism Palaeopascichnus linearis". Precambrian Research. 316: 24–37. Bibcode:2018PreR..316...24K. doi:10.1016/j.precamres.2018.07.017. S2CID 134885946.

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[Let2020-1] Liu, Alexander G.; Tindal, Benjamin H. (2020). "Ediacaran macrofossils prior to the ~580 Ma Gaskiers glaciation in Newfoundland, Canada". Lethaia. 54 (2): 260–270. doi:10.1111/let.12401.

[Antcliffe2011-2] Antcliffe, J. B.; Gooday, A. J.; Brasier, M. D. (2011). "Testing the protozoan hypothesis for Ediacaran fossils: A developmental analysis of Palaeopascichnus". Palaeontology. 54 (5): 1157. Bibcode:2011Palgy..54.1157A. doi:10.1111/j.1475-4983.2011.01058.x.

[3] Jensen, S. (2003). "The Proterozoic and Earliest Cambrian Trace Fossil Record; Patterns, Problems and Perspectives". Integrative and Comparative Biology. 43 (1): 219–28. doi:10.1093/icb/43.1.219. PMID 21680425.

[4] Kolesnikov, Anton V; Rogov, Vladimir I; Bykova, Natalia V; Danelian, Taniel; Clausen, Sébastien; Maslov, Andrey V; Grazhdankin, Dmitriy V (2018). "The oldest skeletal macroscopic organism Palaeopascichnus linearis". Precambrian Research. 316: 24–37. Bibcode:2018PreR..316...24K. doi:10.1016/j.precamres.2018.07.017. S2CID 134885946.

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See also

References