DinoDex

Holotype

ANSP 9259

Troodon formosus

Open the Troodon formosus profile

Facts

Catalog number
ANSP 9259
Institution
Academy of Natural Sciences of Drexel University (ANSP)
Year found
1855
Found by
Ferdinand V. Hayden
Locality
Judith River badlands, Fergus County, Montana
Formation
Judith River Formation

Images

The Troodon formosus holotype tooth, ANSP 9259, from the Judith River Formation of Montana, in three views.Image credit: Loris S. Russell, Public domain, via Wikimedia Commons, Academy of Natural Sciences of PhiladelphiaPublic domainSource (opens in a new tab)

What this specimen preserves

Holotype: ANSP 9259

  • Preserved
  • Partial
  • Reconstructed
  • Unknown / not recorded
Region by region (table)
Skeleton regions of Holotype: ANSP 9259
RegionState
SkullUnknown / not recorded
MandibleUnknown / not recorded
TeethPartial · One tooth.
Cervical vertebraeUnknown / not recorded
Dorsal vertebraeUnknown / not recorded
SacrumUnknown / not recorded
Caudal vertebraeUnknown / not recorded
RibsUnknown / not recorded
GastraliaUnknown / not recorded
Scapula / shoulder girdleUnknown / not recorded
HumerusUnknown / not recorded
Forearm (radius / ulna)Unknown / not recorded
Hand (manus)Unknown / not recorded
PelvisUnknown / not recorded
FemurUnknown / not recorded
Tibia / fibulaUnknown / not recorded
Foot (pes)Unknown / not recorded

Excavation history

A single serrated tooth collected by Hayden in the Judith River badlands and named by Leidy in 1856.

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