Megazostrodon
Megazostrodon is an extinct genus of basal mammaliaforms belonging to the order Morganucodonta. It is approximately 200 million years old. Two species are known: M. rudnerae from the Early Jurassic of Lesotho and South Africa, and M. chenali from the Late Triassic of France.

Jäger, K.R.K., Gill, P.G., Martin, T., and Corfe, I.J. · 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
- MegazostrodontidaePBDB
- Diet
- insectivorePBDB, for Mammaliaformes
- Life habit
- scansorialPBDB, for Mammaliaformes
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At most 8.5 million years on record.
Every occurrence read is dated to somewhere between 201.4 Mya and 192.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Megazostrodon on record, most of them in the Early Jurassic. 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
2 occurrences- Early Jurassic100%
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
2 formations
- Elliot Formation · Stormberg Group1
- Elliot Formation · Stormberg Group1
Loading coastlines…
The named rock units Megazostrodon has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Megazostrodon and its relatives
Early JurassicWhere Megazostrodon and its relatives were recorded in the Early Jurassic.
Found in the same rock
3 taxa- Erythrotherium1 site
- Massospondylus1 site
- Tritylodon1 site
The Paleobiology Database records 2 sites for Megazostrodon, and this reads all of them. The number is how many of those sites it was catalogued from too.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
2 references- A new skull of Megazostrodon (Mammalia, Triconodonta) from the Elliot Formation (Lower Jurassic) of southern Africa1
- Molar occlusion in Late Triassic mammals1
Each of the 2 occurrences 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Megazostrodon
- Source
- Wikipedia/Commons
- Credit
- Jäger, K.R.K., Gill, P.G., Martin, T., and Corfe, I.J.
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Megazostrodon rudnerae · NHMUK:PAL:PV M 26407
The description on this site
- 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 itMegazostrodontidae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Crompton and Jenkins 1968