Agnostotes orientalis, like all members of the suborder Agnostina, possesses two thoracic segments, has a cephalon and pygidium that are more or less the same size and shape (isopygous), and is completely blind.

At the front of the glabella is a notch (frontal sulcus), a characteristic unique to the species, making it easy to distinguish from other members of the genus.

The posterior end of the axial lobe of the pygidium also widens significantly, another distinct characteristic of the species.

Both the pygidium and the cephalon are ornamented with small pits (scrobicules) and wrinkles, extending mostly inwards from the margins.

Its first appearance at the GSSP section of the Huayansi Formation in western Zhejiang, China is defined as the beginning of the Jiangshanian Age (494.2 million years ago) of the Furongian Epoch (Upper Cambrian).