Sebecus

Sebecus is an extinct genus of sebecid crocodylomorph from Paleogene period of South America. Like other sebecosuchians, it was entirely terrestrial and carnivorous. The genus is currently represented by two species, the type S. icaeorhinus and S. ayrampu. Several other species have been referred to Sebecus, but were later reclassified as their own genera.

Sebecus

Smokeybjb · CC BY-SA 3.0 · 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
SebecidaePBDB
Diet
carnivorePBDB, for Sebecidae
Life habit
ground dwellingPBDB, for Sebecidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Sebecidae

Time the record covers

At least 54 million years on record.

The record covers at least 61.66 Mya to 7.246 Mya. No occurrence read is dated outside 66 Mya to 3.6 Mya.

Late Cretaceous — about 0 of 23 occurrencesPaleocene — about 2 of 23 occurrencesPaleoceneEocene — about 11 of 23 occurrencesEoceneOligocene — about 4 of 23 occurrencesOligoceneMiocene — about 6 of 23 occurrencesMiocenePliocene — about 0 of 23 occurrencesPleistocene — about 0 of 23 occurrences67–65 Mya — about 0.2 occurrences65–63 Mya — about 0.5 occurrences63–61 Mya — about 0.5 occurrences61–59 Mya — about 0.4 occurrences59–56 Mya — about 0.4 occurrences56–54 Mya — about 0.7 occurrences54–52 Mya — about 0.8 occurrences52–50 Mya — about 0.8 occurrences50–48 Mya — about 0.9 occurrences48–46 Mya — about 2 occurrences46–43 Mya — about 2 occurrences43–41 Mya — about 2 occurrences41–39 Mya — about 1 occurrence39–37 Mya — about 1.0 occurrences37–35 Mya — about 0.8 occurrences35–33 Mya — about 0.6 occurrences33–30 Mya — about 0.5 occurrences30–28 Mya — about 0.5 occurrences28–26 Mya — about 0.8 occurrences26–24 Mya — about 1 occurrence24–22 Mya — about 0.4 occurrences15–13 Mya — about 1 occurrence13–11 Mya — about 4 occurrences11–8.8 Mya — about 0.0 occurrences8.8–6.7 Mya — about 0.2 occurrences6.7–4.5 Mya — about 0.6 occurrences4.5–2.4 Mya — about 0.3 occurrences61.66 Mya7.246 Mya67 Mya2 Mya

23 occurrences of Sebecus 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

23 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

8 formations

Sarmiento — 45.40°S, 67.72°WSarmiento — 45.40°S, 67.75°WSarmiento — 45.33°S, 68.00°WPozo — 7.33°S, 74.95°WPozo — 7.33°S, 74.95°WPozo — 6.58°S, 76.28°WLumbrera — 25.83°S, 65.45°WLumbrera — 25.72°S, 65.40°WVillavieja — 3.28°N, 75.20°WChambira — 7.32°S, 74.93°WChambira — 7.35°S, 74.95°WSanta Lucía — 17.98°S, 65.60°WMealla — 23.22°S, 65.68°WYanigüa-Los Haitises — 18.91°N, 69.75°W

Loading coastlines…

The named rock units Sebecus 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.

Sebecus and its relatives

Eocene

Where Sebecus and its relatives were recorded in the Eocene.

Found in the same rock

214 taxa

The Paleobiology Database records 20 sites for Sebecus, 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

14 references

Each of the 23 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. 2 further references are not listed. 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 Sebecus

Credit
Smokeybjb
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

Laser scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Sebecus icaeorhinus · AMNH:FARB:3159

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 itSebecidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Stirton 1953