Phractocephalus

Phractocephalus

Monika Betley · CC BY-SA 3.0 · via Wikidata/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
cajaroPBDB
Sits inside
PimelodidaePBDB
Diet
carnivorePBDB, for Siluriformes
Life habit
nektobenthicPBDB, for Siluriformes
Motility
actively mobilePBDB, for Siluriformes
Environment
freshwaterPBDB, for Siluriformes

Time the record covers

At least 15 million years on record.

The record covers at least 27.3 Mya to 11.63 Mya. No occurrence read is dated outside 33.9 Mya to 5.333 Mya.

Eocene — about 0 of 19 occurrencesOligocene — about 2 of 19 occurrencesOligoceneMiocene — about 17 of 19 occurrencesMiocenePliocene — about 0 of 19 occurrences34–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.2 occurrences27–26 Mya — about 0.2 occurrences26–25 Mya — about 0.2 occurrences25–24 Mya — about 0.2 occurrences24–23 Mya — about 0.1 occurrences18–17 Mya — about 0.4 occurrences17–16 Mya — about 0.6 occurrences16–15 Mya — about 0.5 occurrences15–14 Mya — about 0.5 occurrences14–13 Mya — about 0.7 occurrences13–12 Mya — about 0.7 occurrences12–11 Mya — about 3 occurrences11–9.7 Mya — about 2 occurrences9.7–8.7 Mya — about 2 occurrences8.7–7.7 Mya — about 2 occurrences7.7–6.7 Mya — about 2 occurrences6.7–5.8 Mya — about 2 occurrences5.8–4.8 Mya — about 0.7 occurrences27.3 Mya11.63 Mya34.5 Mya4.8 Mya

19 occurrences of Phractocephalus on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

19 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

9 formations

Solimoes — 10.94°S, 69.34°WSolimoes — 10.93°S, 69.92°WSolimoes — 8.93°S, 72.80°WSolimoes — 8.80°S, 68.75°WSolimoes — 9.02°S, 68.81°WUrumaco — 11.25°N, 70.22°WUrumaco — 11.24°N, 70.31°WUrumaco — 11.22°N, 70.24°WVillavieja — 3.26°N, 75.17°WVillavieja — 3.22°N, 75.14°WSolimões — 10.13°S, 67.81°WChambira — 7.35°S, 74.95°WPebas — 7.36°S, 74.96°WRío Yuca — 8.97°N, 70.08°WCastilletes — 11.91°N, 71.34°WPozo — 6.58°S, 76.28°W

Loading coastlines…

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

Phractocephalus and its relatives

Miocene

Where Phractocephalus and its relatives were recorded in the Miocene.

Found in the same rock

100 taxa

The Paleobiology Database records 7 sites for Phractocephalus, 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

7 references

Each of the 19 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 Phractocephalus

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

No 3D scan of Phractocephalus 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPimelodidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Spix and Agassiz 1829