Very old patelliform gastropods from the Early Cambrian of China: Reconsideration of the systematic position of Archaeotremaria
WA Museum Records and Supplements | Volume 21 (2002–2003) | Updated 15 Jan 2018
Records 21 Part 3 2002 299 299 Yu Wen 10.18195/issn.0312-3162.21(3).2002.299-306 ABSTRACT – Archaeotremaria polytremata Yu from the Lower Cambrian Maidiping Member of the Hongchunping Formation of Sichuan, China, was originally described as a primitive monoplacophoran. A restudy of the holotype and paratype ...
On the genus Yangtzemerisma and related genera (Mollusca: Merismoconchia)
WA Museum Records and Supplements | Volume 24 (2007–2008) | Updated 24 Jan 2017
Records 24 Part 2 2008 181 181 Yu Wen 10.18195/issn.0312-3162.24(2).2008.181-194 ABSTRACT – Re-examination of the holotypes of the earliest Cambrian molluscs Yangtzemerisma rarum Yu, 1984 and Merismoconcha multisegmentata Yu, 1979, revealed some new structures such as soft-bodied organs and the number and position of ...