Most species assigned to Misikella have a Norian-Rhaetian distribution and a bimembrate conodont apparatus, including M. posthernsteini.

Fåhræus & Ryley (1989) retained the name Misikella for only M. longidentata, placing the rest of the species into the new genus Axiothea.

[3] However, other conodont specialists utilize the name Misikella primarily in the context of M. posthernsteini and other bimembrate species, rather than M.

[2] Uniquely, M. posthernsteini is known from the Hettangian of Japan,[4] suggesting that conodonts underwent extinction debt and then were outcompeted by other organisms.

The top of the Norian (the base of the Rhaetian, stages of the Upper Triassic) is close to the first appearance of several species of Misikella, as well as Epigondolella mosheri.