Problematic tubular fossils from the Portfjeld Formation (Ediacaran) of North Greenland

Two rare, phosphatized, tubular microfossils of uncertain affinity, probably algal, are described from the Portfjeld biota (Ediacaran) of North Greenland. Portfjeldia aestatis n. gen. n. sp. preserves two tubules, one of which branches, within an annulated outer sheath. Its morphology can be compare...

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Published inJournal of paleontology Vol. 98; no. 2; pp. 221 - 231
Main Authors Willman, Sebastian, Peel, John S.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.03.2024
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Summary:Two rare, phosphatized, tubular microfossils of uncertain affinity, probably algal, are described from the Portfjeld biota (Ediacaran) of North Greenland. Portfjeldia aestatis n. gen. n. sp. preserves two tubules, one of which branches, within an annulated outer sheath. Its morphology can be compared to that of the much larger Ramitubus from the Weng'an biota of South China. An unnamed long, parallel-sided tubule occupied the postmortal cavity formed within diagenetically mineralized specimens of the cyanobacterium Jiangispirellus.
ISSN:0022-3360
1937-2337
DOI:10.1017/jpa.2022.43