Rhynchonellata - Spiriferida - Trigonotretidae
Alternative combination: Simplicisulcus semicircularis
Full reference: S. Z. Shen, G. R. Shi, and K. Y. Zhu. 2000. Early Permian Brachiopods of Gondwana affinity from the Dingjiazhai Formation of the Baoshan Block, western Yunnan, China. Rivista Italiana di Paleontologia e Stratigrafia 106(3):263-282
Belongs to Trigonotreta according to P. Zong et al. 2024
See also Shen et al. 2000 and Waterhouse 2004
Sister taxa: Spirifer (Trigonotreta) strigosus, Trigonotreta australis, Trigonotreta cracovensis, Trigonotreta guizhouensis, Trigonotreta hobartensis, Trigonotreta larghii, Trigonotreta lightjacki, Trigonotreta lyonsensis, Trigonotreta orientensis, Trigonotreta sanjuanensis, Trigonotreta stokesi, Trigonotreta stokesii, Trigonotreta victoriae
Type specimen: NIGP 130936, a valve (Ventral valve). Its type locality is Dingjiazhai, Member B, Baoshan Block, which is in a Sakmarian marine mudstone/siltstone in the Dingjiazhai Formation of China.
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of China (3 collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.