Birbalomys
Birbalomys is an extinct genus of rodent from Asia. The  long creature has been thought to have been a member of the extant gundi family, but reconstructions of its physical appearance are highly speculative. Birbalomys have a definite likeness with the ctenodactyloid families, Chapattimyidae and Yuomyidae. Early findings suggest that Birbalomys were found in the Subathu Formation in the Kuthar River in the Eocene period. References

Eocene mammals of Asia
Eocene rodents