Cronopio dentiacutus

Cronopio is an extinct genus of small insectivorous mammal known from the Early Cretaceous (Albian) of the Río Negro region in Argentina. The genus contains a single species, Cronopio dentiacutus. It belongs to the Meridiolestida, an extinct group of mammals widespread in South America during the Late Cretaceous, which are more closely related to modern marsupials and placental mammals than to monotremes.

Cronopio dentiacutus

Hemiauchenia · 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
CronopioPBDB
Diet
insectivorePBDB, for Mammaliaformes
Life habit
scansorialPBDB, for Mammaliaformes
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At most 3.1 million years on record.

The one occurrence read is dated to somewhere between 113.2 Mya and 110.1 Mya, which is a dating window rather than a span.

Early Cretaceous — about 1 of 1 occurrenceEarly Cretaceous113–113 Mya — about 0.0 occurrences113–113 Mya — about 0.0 occurrences113–113 Mya — about 0.0 occurrences113–113 Mya — about 0.0 occurrences113–113 Mya — about 0.0 occurrences113–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–112 Mya — about 0.0 occurrences112–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–111 Mya — about 0.0 occurrences111–110 Mya — about 0.0 occurrences110–110 Mya — about 0.0 occurrences110–110 Mya — about 0.0 occurrences110–110 Mya — about 0.0 occurrences113.7 Mya109.6 Mya

1 occurrence of Cronopio dentiacutus on record, most of them in the Early Cretaceous. 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

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

Candeleros — 39.63°S, 68.70°W

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The named rock units Cronopio dentiacutus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Cronopio dentiacutus and its relatives

Early Cretaceous

Where Cronopio dentiacutus and its relatives were recorded in the Early Cretaceous.

Found in the same rock

7 taxa

The Paleobiology Database records 1 site for Cronopio dentiacutus, 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

1 reference

Each 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 Cronopio dentiacutus

Credit
Hemiauchenia
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Cronopio dentiacutus 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

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 itCronopio through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rougier et al. 2011