Data from: Convergent avialan brain morphology in Sinovenator (Troodontidae, Theropoda)
Cite this dataset
Yu, Congyu; Xu, Xing (2023). Data from: Convergent avialan brain morphology in Sinovenator (Troodontidae, Theropoda) [Dataset]. Dryad. https://doi.org/10.5061/dryad.41ns1rnk6
Abstract
Sinovenator changii IVPP V20378 is a troodontid theropod dinosaur from the Early Cretaceous strata in Liaoning, northeastern China. The specimen is a nearly complete 3D-preserved skeleton. The postcranial elements are in sleeping posture and the skull is isolated from the rest. The skull suffered only slight deformation and distortion, completely preserving most of its elements except the left postorbital, parietal, and squamosal. The dataset comprises three .stl files of the skull, brain endocast, and inner ear of Sinovenator changii IVPP V20378.
README: The skull and endocranium CT reconstruction of Sinovenator changii IVPP V20378
Description of the data and file structure
There are three .stl files in the dataset. They are 3D reconstruction renderings of skull, brain endocast, and inner ear of the troodontid dinosaur Sinovenator changii, specimen number IVPP V20378. A .nex tree file including 51 taxa that was used in this study and related cranial endocast landmark data in .txt are also included here. Detail about data collection can be found in the manuscript.
Sinovenator_Skull_001.stl
Sinovenator_Brain_1221.stl
Sinovenator_Inner_ear_1221.stl
Sinovenator.txt
SinovenatorTree.nex
Code/Software
The 3D reconstruction was conducted in software Mimics 19.0 (Materilise, Belgium), then rendered models were directly exported as .stl files.
Methods
The skull and postcranial skeleton of this specimen were scanned separately at the Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China. The scanning was carried out using the 225 kV micro-computerized tomography (developed by the Institute of High Energy Physics, Chinese Academy of Sciences (CAS)) at the Key Laboratory of Vertebrate Evolution and Human Origins, CAS. The specimen was scanned with a beam energy of 100 kV and a flux of 100 mA at a resolution of 61 μm per pixel using a 360° rotation with a step size of 0.5° and an unfiltered aluminum reflection target. The total dataset of 1,536 slices was reconstructed using two-dimensional reconstruction software MOCUPY developed by the Institute of High Energy Physics, CAS. The segmentation and rendering of the digital models were conducted in Mimics 19.0 (Materilise, Belgium). The .stl files are directly exported from Mimics 19.0.
Funding
National Natural Science Foundation of China, Award: 42288201