Exceptionally preserved jellyfishes from the Middle Cambrian

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Publication Type Journal Article
School or College College of Mines & Earth Sciences
Department Geology & Geophysics
Creator Jarrard, Richard D.
Other Author Cartwright, Paulyn; Halgedahl, Susan L.; Hendricks, Jonathan R.; Marques, Antonio C., Collins, Allen G.; Lieberman, Bruce S.
Title Exceptionally preserved jellyfishes from the Middle Cambrian
Date 2007-10-31
Description Cnidarians represent an early diverging animal group and thus insight into their origin and diversification is key to understanding metazoan evolution. Further, cnidarian jellyfish comprise an important component of modern marine planktonic ecosystems. Here we report on exceptionally preserved cnidarian jellyfish fossils from the Middle Cambrian (,505 million years old) Marjum Formation of Utah. These are the first described Cambrian jellyfish fossils to display exquisite preservation of soft part anatomy including detailed features of structures interpreted as trailing tentacles and subumbrellar and exumbrellar surfaces. If the interpretation of these preserved characters is correct, their presence is diagnostic of modern jellyfish taxa. These new discoveries may provide insight into the scope of cnidarian diversity shortly after the Cambrian radiation, and would reinforce the notion that important taxonomic components of the modern planktonic realm were in place by the Cambrian period.
Type Text
Publisher Public Library of Science (PLoS)
Journal Title PLoS ONE
Volume 2
Issue 10
First Page e1121
DOI 10.1371/journal.pone.0001121
citatation_issn 1932-6203
Subject Jellyfishes; Metazoan evolution; Jellyfish fossils; Marjum Formation; Utah; Middle Cambrian
Subject LCSH Cnidaria, Fossil; Metazoans -- Evolution
Language eng
Bibliographic Citation Cartwright, P., Halgedahl, S. L., Hendricks, J. R., Jarrard, R. D., Marques, A. C., Collins, A. G., & Lieberman, B. S. (2007). Exceptionally preserved jellyfishes from the Middle Cambrian. PLoS ONE, 2(10), no. e1121.
Rights Management (c) Cartwright, P., Halgedahl, S. L., Hendricks, J. R., Jarrard, R. D., Marques, A. C., Collins, A. G., & Lieberman, B. S. http://dx.doi.org/10.1371/journal.pone.0001121
Format Medium application/pdf
Format Extent 656,258 bytes
Identifier ir-main,11183
ARK ark:/87278/s6b85ss3
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 707260
Reference URL https://collections.lib.utah.edu/ark:/87278/s6b85ss3
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