Sinosachites
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''Sinosachites'' is a genus of '
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 ...
' known only from sclerites; these have internal chambers that are sub-perpendicular to the central canal, to which they are connected by narrow channels. The chambers are the same diameter, ~40 μm, as the longitudinal canals in ''
Australohalkieria ''Australohalkieria'' (meaning "southern ''Halkieria''") is an extinct genus of halkieriid from Australia and Antarctica. Description ''Australohalkieria superstes'' This species, named by Porter in 2004, is the most complete and abundant Aust ...
''; 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. The sclerites 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 smal ...
'', palmate, cultrate and siculate sclerite morphologies exist.


References

Fossil taxa described in 1981 Cambrian molluscs {{mollusc-stub