Janospira is a microfossil known from Ordovician deposits, whose affinity is uncertain.

It resembles a spiral shell mounted on a cylinder, probably calcareous, about 1 mm in length.

There are compelling reasons to discount a foramaniferan or molluscan affinity,[1][2] though, some researchers presume it to be an archaeogastropod.

[3] Species of Janospira are known from northern Spitsbergen, Norway,[1] and from Australia[4]

This article related to an Ordovician animal is a stub.