Micro-CT data of two early Cambrian cnidarian fossils from China
Data files
Aug 30, 2024 version files 7.52 GB
-
description_of_RO_of_ELISN143-192.docx
10.53 KB
-
description_of_RO_of_ELIYoo5-SN-1.docx
10.56 KB
-
ELISN143-192.stl
2.04 GB
-
ELIYoo5-SN-1.stl
3.47 GB
-
README.md
2.32 KB
-
RO_of_ELISN143-192.rar
1.03 GB
-
RO_of_ELIYoo5-SN-1.rar
982.33 MB
Abstract
The basal Cambrian Kuanchuanpu Formation (southern Shaanxi, China) yields well-preserved specimens of the medusozoan genus Olivooides, a thecate polyp exhibiting pentaradial symmetry. Described herein is a rare internal thecal (peridermal) structure, termed the transverse disc-shaped diaphragm (TDD), which consists of a thin, adapically convex transverse wall spanning the peridermal cavity in certain specimens of O. mirabilis and O. multisulcatus. The TDD may be a diagnostic feature distinguishing Olivooides from other genera within the family Olivooidae, but it may also have been adventitious and thus similar in origin to the schott (apical wall) of conulariids, Sphenothallus, and coronate scyphopolyps. If primary in nature, the TDD may have served to increase the stability and/or feeding efficiency of the polyp within the periderm, and it may have provided additional compressional strength the periderm. The TDD is the earliest known transverse exoskeletal element in cnidarians, though similar transverse structures in tabulate corals, conulariids, Sphenothallus, coronate scyphopolyps, and Archotuba conoidalis may have arisen independently in these lineages.
README: Micro-CT data of two early Cambrian cnidarian fossils from China
https://doi.org/10.5061/dryad.c866t1gg7
Description of the data and file structure
These are Micro-CT data of two samples. These two samples were scanned using X-ray Tomographic Microscopy (Micro-CT; Zeiss Xradia 520 Versa, operating voltage 60kV). Each scan produced 2701 projections over 360°, with the data sets having voxel dimensions of approximately 1.79 μm (ELISN143-192) and 1.81 μm (ELIYoo5-SN-1). Users could build the 3D reconstructions via VG Studio Max 3.2.
Files and variables
File: README.md
Description:
File: ELISN143-192.rar
Description:
File: ELIYoo5-SN-1.rar
Description:
File: description_of_RO_of_ELIYoo5-SN-1.docx
Description: This is a text file with a description of the scan settings, voxel settings, techniques used to create images and specimen information of ELIYoo5-SN-1.
File: description_of_RO_of_ELISN143-192.docx
Description: This is a text file with a description of the scan settings, voxel settings, techniques used to create images and specimen information of ELISN143-192.
File: RO_of_ELIYoo5-SN-1.rar
Description: These are Micro-CT data of Olivooides mirabilis from Early Cambrian. It was scanned using X-ray Tomographic Microscopy (Micro-CT; Zeiss Xradia 520 Versa, operating voltage 60kV). Each scan produced 2701 projections over 360°, with the data set having voxel dimensions of approximately 1.81 μm.
File: ELIYoo5-SN-1.stl
Description: This is a 3D reconstruction of the STL format file of ELIYoo5-SN-1.
File: RO_of_ELISN143-192.rar
Description: These are Micro-CT data of Olivooides mirabilis from Early Cambrian. It was scanned using X-ray Tomographic Microscopy (Micro-CT; Zeiss Xradia 520 Versa, operating voltage 60kV). Each scan produced 2701 projections over 360°, with the data set having voxel dimensions of approximately 1.79 μm.
File: ELISN143-192.stl
Description: This is a 3D reconstruction of the STL format file of ELISN143-192.
Code/software
Users could use VG Studio Max 3.2 to view my data. They could observe the 3D reconstructions of these samples via image stack in this software.
Methods
Two samples were scanned using X-ray Tomographic Microscopy (Micro-CT; Zeiss Xradia 520 Versa, operating voltage 60kV). Each scan produced 2701 projections over 360°, with the data sets having voxel dimensions of approximately 1.79 μm (ELISN143-192) and 1.81 μm (ELIYoo5-SN-1).