A data entry error had wrongly recorded the spelling as 'microceros'. Haswell (and Pettibone) spell it as 'microceras' [details]
Pettibone (1970: 19) examined the holotype of Thalenessa microceras. She placed this original name, which was ... [details]
No nomenclatural status. Retained as explanatory record only. This usage originated in Hartman catalogue ... [details]