''Thambetolepis'' is a dubious genus of sachitid

halkieriid The halkieriids are a group of fossil organisms from the Lower to Middle Cambrian. Their eponymous genus is ''Halkieria'' , which has been found on almost every continent in Lower to Mid Cambrian deposits, forming a large component of the smal ...

from the Cambrian (530-513 Ma). The

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

'' Sinosachites'' may have been the same as ''Thambetolepis''. The sclerites of ''Sinosachites'' are probably synonymous with ''Thambetolepis'', which was originally described from Australia. Left-hand and right-hand sclerites exist, so the animal was bilaterally symmetrical; as in ''

Halkieria The halkieriids are a group of fossil organisms from the Lower to Middle Cambrian. Their eponymous genus is ''Halkieria'' , which has been found on almost every continent in Lower to Mid Cambrian deposits, forming a large component of the sma ...

'', palmate, cultrate and siculate sclerite morphologies exist. The chambers are the same diameter, ~40 µm, as the longitudinal canals in '' Australohalkieria''; their greater number and arrangement as lateral rather than longitudinal bodies reflects the greater size of the ''Sinosachites'' sclerites, which measure about 1–2 mm in length.

References

Extinct molluscs Nomina dubia {{Mollusc-stub