Gracilinanus
Gracilinanus is a genus of opossum in the family Didelphidae. It was separated from the genus Marmosa in 1989, and has since had the genera Cryptonanus, Chacodelphys, and Hyladelphys removed from it.

Gionorossi · 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- Also called
- gracile opposumPBDB
- Sits inside
- DidelphidaePBDB
- Diet
- omnivore, carnivorePBDB, for Didelphidae
- Life habit
- scansorialPBDB, for Didelphidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Didelphidae
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Gracilinanus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
4 occurrences- Pleistocene100%
- Holoceneunder 1%
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.
Gracilinanus and its relatives
PleistoceneWhere Gracilinanus and its relatives were recorded in the Pleistocene.
Found in the same rock
76 taxa- Desmodus3 sites
- Didelphidae3 sites
- Monodelphis domestica3 sites
- Necromys3 sites
- Oligoryzomys3 sites
- Oryzomyini3 sites
- Sturnira3 sites
- Thrichomys3 sites
- Thylamys3 sites
- Akodon2 sites
- Calomys tener2 sites
- Carollia2 sites
- Carterodon sulcidens2 sites
- Dasypus (Dasypus) septemcinctus2 sites
- Macrophyllum2 sites
- Monodelphis kunsi2 sites
- Natalus2 sites
- Oryzomys2 sites
- Oryzomys subflavus2 sites
- Phyllostomus2 sites
- Proechimys2 sites
- Sigmodontinae2 sites
- Stenodermatinae2 sites
- Tonatia2 sites
The Paleobiology Database records 4 sites for Gracilinanus, 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- Quaternary mammals from Serra do Bodoquena, Mato Grosso do Sul, Brazil2
- Fauna de mamíferos do Quaternário de Serra da Mesa (Goiás, Brasil)2
Each of the 4 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content2
Picture of Gracilinanus
- Source
- Wikipedia/Commons
- Credit
- Gionorossi
- Licence
- CC BY-SA 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
- Gracilinanus agilis · ummz:mammals:134553
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 itDidelphidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gardner and Creighton 1989