Figure 7. Reconstruction of Archiasterella dhiraji n. sp. sclerites with morphological terms used in this paper. (1) Profile view, (2) top view, (3) basal view.
when viewed perpendicularly to the ray plane. This sclerite is too incomplete to determine whether any ray is oriented differently from any other, and thus its assignment to Archiasterella is uncertain.We also isolate this name. Archiasterella dhiraji n. sp. is not the first member of this
genus to be illustrated and described from the Himalaya. Fuchs and Mostler (1972) provided representative drawings of the 5+0 ray structured Archiasterella pentactina (Sdzuy, 1969) and
other sclerites that they described as stauractine “Archiaster.” The latter appears to belong to the genus Allonnia due to a lack of a recurved ray. Mostler (1980) illustrated what he suggested was Chancelloria sp. (stauractines “Archiaster”) in Pakistan. However, the sclerite illustrated in fact belongs to the genus Allonnia because of its radial symmetry and lack of a transverse or sagittal articulation facet. Singh and colleagues (2015) referred several specimens reportedly from the upper part of
