Cranidial Shape Variation during Ontogeny in Ptychopariid Trilobite Jiulongshania acalla from the Cambrian Gushan Formation of Shandong Province and Its Ecological Implication

• Published in: Beijing da xue xue bao Vol. 60; no. 4; pp. 626 - 638
• Main Authors: Qin, Shujian, Dong, Lin
• Format: Journal Article
• Language: Chinese
• Published: Beijing Acta Scientiarum Naturalium Universitatis Pekinenis 01.01.2024
• Subjects: Cambrian; Feeding behavior; Ontogeny; Variation

Based on a large number of cranidial specimens of Jiulongshania acalla Walcott, 1905 from the Cambrian Gushan Formation at the Tangwangzhai section in Jinan City, Shandong Province, the traditional morphometric method and geometric morphometrics were used to measure and quantify the morphological fe...