Footprint type
Walmadanyichnus
Walmadanyichnus 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 137.1–121.4 million years old in Australia.
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 11 October 2026- Named by
- Salisbury et al. 2016
medium
medium: Only PBDB gives this; nothing contradicts it.Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
- Described in
- S. W. Salisbury, A. Romilio, M. C. Herne, R. T. Tucker, J. P. Nair (2016). The Dinosaurian Ichnofauna of the Lower Cretaceous (Valanginian–Barremian) Broome Sandstone of the Walmadany Area (James Price Point), Dampier Peninsula, Western Australia. Society of Vertebrate Paleontology Memoir 16. Journal of Vertebrate Paleontology 36(6, suppl.): 1–152. Read it
medium
medium: Only PBDB gives this; its author and year match the naming authority (Salisbury et al. 2016).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
- Walmadanyichnus hunteri
medium
medium: Only PBDB gives this; nothing contradicts it.Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
- Dated to
- Valanginian to Barremian, 137.1–121.4 million years ago
medium
medium: Only PBDB gives this; nothing contradicts it.Omnisaura calculation137.1–121.4 million years ago, from its dated fossil recordsmedium
medium: Omnisaura's calculation from 3 confirmed PBDB records.Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
- Found in
- Australia
medium
medium: Only PBDB records it (3 records).Sources
Given by: Paleobiology Database. How it was chosen: Union of all sources (ISO 3166).
- Rock formations
- Broome Sandstone
medium
medium: Only PBDB records it (3 records).Sources
Given by: Paleobiology Database. How it was chosen: Canonical names, automatic and editor-approved matches applied.
- Parent group
- Ornithopoda
medium
medium: Only PBDB gives this; nothing contradicts it.Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
- Species named in its records
- Walmadanyichnus hunteri
Sources
Given by: Paleobiology Database (the species its fossil records are identified as).
- 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.
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.
- Family: 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.
- Resting on one source: 5 facts come from a single source with nothing against them (rated medium): name (PBDB); authority (PBDB); type species (PBDB); parent group (PBDB); age (headline) (PBDB).
Size and appearance aren't covered yet, and diet and way of life only as PBDB infers them for the wider group. Omnisaura leaves the rest out rather than guess.
Where sources disagree
None open. Where our sources overlap, they agree on everything shown here.
Did it meet…?
No. Walmadanyichnus had gone at least 37.8 million years before Tyrannosaurus appears in the fossil record.
Going by the ages and rock formations of their dated fossils, as on the map. Compare their fossil sites on the map.
Connections
Genera linked to Walmadanyichnus by where and when their fossils were found, by classification and by who named them. Select a name to open its page.
Found in the same rocks 4
Genera and other fossil types from the same rock units, from rocks of overlapping age, the most shared fossil sites first.
Same parent group: Ornithopoda 5
Other genera in Ornithopoda with a full profile.
Named by Salisbury 1
Genera whose naming authority includes the same surname. The authority has no initials, so different people who share a surname can appear together.
Found in Australia 7
Other genera found in Australia, from rocks of overlapping age, the most fossil sites there first.
Credits
Where this page comes from
- Paleobiology DatabaseCC BY 4.0 · fossil records, ages, classification
- 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