Styx canadensis

Styx is a monotypic genus of butterflies in the metalmark family Riodinidae. It consists of one species, Styx infernalis, described by Otto Staudinger in 1875. It is endemic to Peru, where it inhabits tropical montane cloud forests between the elevations of 1000-1600 meters.

A picture published with the record for Styx canadensis. What it shows has not been checked.

Floro Ortiz Contreras · 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.

Time the record covers

At most 6.2 million years on record.

Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 3 of 3 occurrencesLate CretaceousPaleocene — about 0 of 3 occurrences72–72 Mya — about 0.1 occurrences72–72 Mya — about 0.1 occurrences72–72 Mya — about 0.1 occurrences72–71 Mya — about 0.1 occurrences71–71 Mya — about 0.1 occurrences71–71 Mya — about 0.1 occurrences71–71 Mya — about 0.1 occurrences71–70 Mya — about 0.1 occurrences70–70 Mya — about 0.1 occurrences70–70 Mya — about 0.1 occurrences70–70 Mya — about 0.1 occurrences70–69 Mya — about 0.1 occurrences69–69 Mya — about 0.1 occurrences69–69 Mya — about 0.1 occurrences69–69 Mya — about 0.1 occurrences69–68 Mya — about 0.1 occurrences68–68 Mya — about 0.1 occurrences68–68 Mya — about 0.1 occurrences68–68 Mya — about 0.1 occurrences68–67 Mya — about 0.1 occurrences67–67 Mya — about 0.1 occurrences67–67 Mya — about 0.1 occurrences67–67 Mya — about 0.1 occurrences67–66 Mya — about 0.1 occurrences66–66 Mya — about 0.1 occurrences66–66 Mya — about 0.1 occurrences72.7 Mya65.5 Mya

3 occurrences of Styx canadensis on record, most of them in the Late 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

3 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

Eureka Sound — 78.18°N, 99.72°WEureka Sound — 78.17°N, 99.50°W

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

Styx canadensis and its relatives

Late Cretaceous

Where Styx canadensis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

14 taxa

The Paleobiology Database records 3 sites for Styx canadensis, 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 3 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 content1

Picture of Styx canadensis

Credit
Floro Ortiz Contreras
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Styx canadensis 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 itFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.