Gaiasia jennyae
Gaiasia is an extinct genus of stem-tetrapods from the Early Permian of Namibia, containing a single species, Gaiasia jennyae. Gaiasia was a freshwater predator which was exceptional among stem-tetrapods for its combination of relatively enormous size, Southern occurrence, and late survival.

Neil Pezzoni · CC BY 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- GaiasiaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- brackish,freshwater,terrestrialPBDB, for Tetrapoda
Time the record covers
At most 25 million years on record.
The one occurrence read is dated to somewhere between 298.9 Mya and 274.4 Mya, which is a dating window rather than a span.
1 occurrence of Gaiasia jennyae on record, most of them in the Permian. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
1 occurrences- Permian100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
1 formation
Loading coastlines…
The named rock units Gaiasia jennyae has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gaiasia jennyae and its relatives
PermianWhere Gaiasia jennyae and its relatives were recorded in the Permian.
Found in the same rock
No other named taxon is catalogued from that site.
The Paleobiology Database records 1 site for Gaiasia jennyae, and this reads all of them.
Entered from
1 referenceEach of the 1 occurrence read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Gaiasia jennyae
- Source
- Wikipedia/Commons
- Credit
- Neil Pezzoni
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Gaiasia jennyae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Gaiasia”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGaiasia through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Marsicano et al. 2024