Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 39, issue 1
Articles | Volume 39, issue 1
https://doi.org/10.5194/jm-39-61-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-39-61-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 39, issue 1
Research article
 | 
26 May 2020
Research article |  | 26 May 2020

Skeletal architecture of middle Cambrian spicular radiolarians revealed using micro-CT

Jiani Sheng, Sarah Kachovich, and Jonathan C. Aitchison

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Short summary
To better understand radiolarian evolution and taxonomy, two middle Cambrian specimens recovered from Australia were studied using micro-CT. Analyses of their 3-D models revealed for the first time their skeletal architecture constructed of spicules. Insertion of an artificial sphere into their shells indicates that they may have secreted their spicules one by one during cell enlargement. The timing of skeletal genesis may be an important factor influencing the morphology of early radiolarians.
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