Omnisaura

Footprint type

Anomoepus

Hitchcock 1848

Anomoepus is a footprint type: the name is for the fossil footprints themselves. The animal that made them is not known for certain. Its footprints are found in rocks 237–161.5 million years old in 8 countries, most often the United States and Lesotho.

Confidence labels
How sure are we?0 high26 medium18 lowHow we rate confidence

Confidence labels are switched off. Facts with low confidence, or where sources disagree, still carry a small dot: tap it for the reason.

At a glance

Data as of 12 October 2026
237–161.5 Ma
Triassic
Jurassic
Cretaceous
252 million years ago20114366

The last non-bird dinosaurs died out 66 million years ago. That's as far from us as the end of this bar.

Named by
Hitchcock 1848
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Described in
E. Hitchcock (1848). An attempt to discriminate and describe the animals that made the fossil footmarks of the United States, and especially of New England. Memoirs of the American Academy of Arts and Sciences, new series 3: 129–256. Read it
mediummedium: Only PBDB gives this; its author and year match the naming authority (Hitchcock 1848).
Sources

Given by: Paleobiology Database. The publication the Paleobiology Database gives as the authority for this genus name, usually the one that first named and described it.

Type species
Anomoepus scambus
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Dated to
Carnian to Callovian, 237–161.5 million years ago
mediummedium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation237–161.5 million years ago, from its dated fossil records
mediummedium: Omnisaura's calculation from 127 confirmed PBDB records.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Found in
Canada
mediummedium: Only PBDB records it (3 records).
China
mediummedium: Only PBDB records it (6 records).
Lesotho
mediummedium: Only PBDB records it (18 records).
Poland
mediummedium: Only PBDB records it (6 records).
Spain
mediummedium: Only PBDB records it (2 records).
United States
mediummedium: Only PBDB records it (91 records).
Australia
lowlow: Only one PBDB record.
Morocco
lowlow: Only one PBDB record.
mixedmixed: Levels differ between entries; each has its own.
Sources

Given by: Paleobiology Database. How it was chosen: Union of all sources (ISO 3166).

Rock formations
29, including Portland Formation, Kayenta/Navajo Sandstone, Navajo Sandstone and Elliot Formation
mixedmixed: Levels differ between entries; each has its own.
Show all 29, each with its confidence
East Berlin
mediummedium: Only PBDB records it (2 records).
Elliot Formation
mediummedium: Only PBDB records it (17 records).
Gettysburg
mediummedium: Only PBDB records it (2 records).
Kayenta
mediummedium: Only PBDB records it (3 records).
Kayenta/Navajo Sandstone
mediummedium: Only PBDB records it (8 records).
McCoy Brook
mediummedium: Only PBDB records it (2 records).
Moenave
mediummedium: Only PBDB records it (2 records).
Navajo Sandstone
mediummedium: Only PBDB records it (6 records).
Portland Formation
mediummedium: Only PBDB records it (50 records).
Przysucha
mediummedium: Only PBDB records it (4 records).
Towaco
mediummedium: Only PBDB records it (3 records).
Turners Falls
mediummedium: Only PBDB records it (10 records).
Yanan
mediummedium: Only PBDB records it (3 records).
Barkly East
lowlow: Only one PBDB record.
Bull Run
lowlow: Only one PBDB record.
Dansirit
lowlow: Only one PBDB record.
Feltville
lowlow: Only one PBDB record.
Lastres
lowlow: Only one PBDB record.
Lufeng
lowlow: Only one PBDB record.
Mist Mountain
lowlow: Only one PBDB record.
Monte Zugna
lowlow: Only one PBDB record.
Montemarcello
lowlow: Only one PBDB record.
Razorback Beds
lowlow: Only one PBDB record.
Skloby
lowlow: Only one PBDB record.
Sloan Canyon
lowlow: Only one PBDB record.
Timezgadiouine
lowlow: Only one PBDB record.
Wingate Sandstone/Kayenta
lowlow: Only one PBDB record.
Zagaje
lowlow: Only one PBDB record.
Ziliujing
lowlow: Only one PBDB record.
Sources

Given by: Paleobiology Database. How it was chosen: Canonical names, automatic and editor-approved matches applied.

Footprint family
Moyenisauropodidae
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Parent group
Moyenisauropodidae
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Known from
Footprints and traces
Sources

Given by: Paleobiology Database (what the name was based on).

Made by
Not known for certain. Footprints rarely show which animal made them.
Sources: Paleobiology Database (CC BY 4.0), Natural History Museum Data Portal (CC0 1.0), Wikidata (CC0 1.0)Confidence levels and gaps are Omnisaura's own assessment.

Gaps are answers

What isn't known yet

  • The animal that made them: not known for certain, as for most footprint types.
  • Order: no source we use gives it yet.
  • Common names: no source we use gives it yet.
  • What it was named after: no source we use gives it yet.
  • Held back: 23 fossil records left out: identified only tentatively (for example "cf." or "?").
  • Held back: 5 fossil records left out: identified as a related genus rather than this one.
  • Resting on one source: 5 facts come from a single source with nothing against them (rated medium): authority (PBDB); type species (PBDB); parent group (PBDB); family (PBDB); age (headline) (PBDB).

Size, diet and behaviour aren't covered yet. Omnisaura leaves them out rather than guess.

Where sources disagree

None open. Where our sources overlap, they agree on everything shown here.

Did it meet…?

?

No. Anomoepus had gone at least 77.9 million years before Tyrannosaurus appears in the fossil record, a longer gap than the 66 million years between Tyrannosaurus and today.

Going by the ages and rock formations of their dated fossils, as on the map. Compare their fossil sites on the map.

Found in the same rocks

Genera and other fossil types from the same formations, from rocks of the same age.

Credits

Where this page comes from

  • Paleobiology DatabaseCC BY 4.0 · fossil records, ages, classification
  • Natural History Museum Data PortalCC0 1.0 · catalogued specimens
  • WikidataCC0 1.0 · names and identifiers
  • OmnisauraOmnisaura editorial · confidence levels and gaps
  • PaleoMAP PaleoCoastlines (Kocsis and Scotese 2021)CC BY 4.0 · ancient coastlines on the small map
  • Natural EarthPublic domain · today's coastlines

Pictures linked from this page are credited beside each one, with their own licences; the full list is in the JSON download.