Restoration of Ptilodus

Era Cenozoic
Period Early Paleocene – Late Paleocene
Living Period 65 - 55 million years ago
Region North America and Europe
Size Length: 30 - 50 cm
First Appearance Chapter 1


Ptilodus is a genus of mammals from the extinct order of Multituberculata, and lived during the Paleocene in North America. Ptilodus was a relatively large multituberculate of 30 to 50 cm in length, which is about the same size as a squirrel. Its feet, legs and long tail suggest it was a good climber, so it very possibly lead a squirrel-like lifestyle. The genus was named by paleontologist Edward Drinker Cope in 1881. Cope also mistakenly assigned some material belonging to this genus to Chirox in 1884. Elements from Ectypodus (Jepsen, 1940) and Neoplagiaulax have also been reassigned to this genus.

Shirou's History Fact

A multituberculata that survived the Cretaceous Period. It lived in trees and had a long tail to grab things. It can be thought of as being simliar to a squirrel.


Ptilodus appears as a orange furred squirrel-like animal with white stomach fur. It has big innocent eyes and a large tail. It has a chubby like body, yet is still extremely agile. It's appeared throughout the series numerous times, more than likely because of its cuteness as Oomori once did remark it was a cute animal. It usually appears with Oomori. The white fur also extends on its forehead region, its arms and legs extending over the orange fur.


Wonderful World arc

Ptilodus first appears in chapter 1, as Akira Sengoku was laying tired on the ground, the little marsupial catches a cricket-like animal and begins to eat it. With its first encounter with Kanako Oomori, it jumps on causing her to panic, but later befriends her. However, their introduction was left to a halt as a Diatryma closes towards them causing the Ptilodus to flee in panic, jumping from tree to tree in a mater or seconds. The Ptilodus later appears with Kanako on the plane, as she's searching for medicine.


  • Ptilodus commonly makes appearances on covers, usually with Kanako. Some chapters include chapters 10, 27, 34, 46 and volume 9's cover.
Prominent Animals
ChimeraChimera IIErnestMr. Lucky
Extinct Animals
AmmonoideaAncient TicksAnomalochelysArctodus SimusArgentavisAlectroenas NitidissimaAmbulocetusAndrewsarchus Mongoliensis ArsinoitheriumBasilosaurusBos PrimigeniusCanis DirusChalicotheriumCheirolepisCrassigyrinusCyclotosaurusDiatrymaEntelodonEumegamysEusmilusEusthenopteronGerrothoraxGigantopithecusGlyptodonHarpagornis MooreiHoloptychiusHyaenodonHypsognathusHyracotheriumIchthyornisIctitheriumIschyromysKannemeyeriaLystrosaurusMacraucheniaMammuthus ImperatorMegaladapis EdwardsiMeganeura MonyiMegatherium AmericanumMeiolaniaMesohippusMoeritheriumNecrolemurNemegtbaatar GobiensisNotharctus ParaceratheriumPristichampusPropleopusPtilodus RodhocetusSmilodonTitanis WalleriTriadobatrachusUnknown Extinct Animals