Ardipithecus ramidus
Ardipithecus ramidus is a species of australopithecine from the Afar region of Early Pliocene Ethiopia 4.4 million years ago (Ma). The species A. ramidus is the type species for the genus Ardipithecus. There is an older species in this same genus, Ardipithecus kadabba that was discovered more recently.

Chris Woodrich · CC BY-SA 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
- ArdipithecusPBDB
- Diet
- omnivorePBDB, for Hominidae
- Life habit
- ground dwellingPBDB, for Hominidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 2.8 million years on record.
Every occurrence read is dated to somewhere between 5.333 Mya and 2.58 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Ardipithecus ramidus on record, most of them in the Pliocene. 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- Pliocene100%
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
- Chemeron Formation1
- Sagantole Formation · Awash Group1
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The named rock units Ardipithecus ramidus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ardipithecus ramidus and its relatives
PlioceneWhere Ardipithecus ramidus and its relatives were recorded in the Pliocene.
Found in the same rock
72 taxa- Bovini2 sites
- Ceratotherium2 sites
- Colobinae2 sites
- Loxodonta adaurora2 sites
- Sciuridae2 sites
- Tragelaphus2 sites
- Aepyceros1 site
- Agriotherium1 site
- Anancus1 site
- Anancus kenyensis1 site
- Ancylotherium1 site
- Antilope porrecticornis1 site
- Australopithecus1 site
- Canidae1 site
- Ceratotherium simum1 site
- Cercopithecidae1 site
- Cercopithecoidea1 site
- Crocodylidae1 site
- Crocuta1 site
- Deinotherium1 site
- Deinotherium bozasi1 site
- Enhydriodon1 site
- Felidae1 site
- Gerontochoerus scotti1 site
The Paleobiology Database records 2 sites for Ardipithecus ramidus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
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- Australopithecus ramidus, a new species of early hominid from Aramis, Ethiopia1
- The Neogene rodent succession of the Baringo Basin, Kenya1
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 Ardipithecus ramidus
- Source
- Wikipedia/Commons
- Credit
- Chris Woodrich
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial-ShareAlike
- Commercial use
- the licence does not allow it
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
- 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 itArdipithecus through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (White et al. 1994)