Anisolambda
Anisolambda is an extinct genus of litoptern. It lived from the Late Paleocene to the Middle Eocene in what is now Argentina.

Ghedo · 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
- ProterotheriidaePBDB
- Diet
- herbivorePBDB, for Litopterna
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 14 million years on record.
The record covers at least 56 Mya to 41.03 Mya. No occurrence read is dated outside 57 Mya to 37.71 Mya.
13 occurrences of Anisolambda on record, most of them in the Eocene. 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
13 occurrencesThese 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
- Sarmiento Formation7
- Las Flores Formation · Río Chico Group2
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The named rock units Anisolambda has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Anisolambda and its relatives
EoceneWhere Anisolambda and its relatives were recorded in the Eocene.
Found in the same rock
179 taxa- Archaeopithecus rogeri8 sites
- Henricosbornia lophodonta6 sites
- Isotemnus5 sites
- Isotemnus primitivus5 sites
- Maxschlosseria praeterita5 sites
- Pleurostylodon similis5 sites
- Antepithecus brachystephanus4 sites
- Didolodus multicuspis4 sites
- Notostylops4 sites
- Polydolops serra4 sites
- Polydolops thomasi4 sites
- Thomashuxleya externa4 sites
- Trigonostylops wortmani4 sites
- Victorlemoineia4 sites
- Asmithwoodwardia subtrigona3 sites
- Didolodus minor3 sites
- Ernestokokenia nitida3 sites
- Josepholeidya adunca3 sites
- Mammalia3 sites
- Marsupialia3 sites
- Notopithecus3 sites
- Notopithecus adapinus3 sites
- Notostylops murinus3 sites
- Notostylops pendens3 sites
The Paleobiology Database records 9 sites for Anisolambda, 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
6 references- The beginning of the age of mammals in South America. Part I5
- Biostratigraphy of the Casamayoran, Early Eocene of Patagonia4
- The Egidio Feruglio's collection in the Museum of Geology and Palaeontology of the University of Padova: its importance to the knowledge of Cenozoic mammals from South America1
- Revised timing of the South American early Paleogene land mammal ages1
- Descriptions of the oldest known South American mammals, from the Rio Chico Formation1
- Notices préliminaires sur des ongulés nouveaux des terrains crétacés de Patagonie [Preliminary notes on new ungulates from the Cretaceous terrains of Patagonia]1
Each of the 13 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 content1
Picture of Anisolambda
- Source
- Wikipedia/Commons
- Credit
- Ghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Anisolambda was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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, “Anisolambda”
- 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 itProterotheriidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1901