Pseudorca crassidens

The false killer whale is a species of oceanic dolphin that is the only extant representative of the genus Pseudorca. It is found in oceans worldwide but mainly in tropical regions. It was first described in 1846 as a species of porpoise based on a skull, which was revised when the first carcasses were observed in 1861. The name "false killer whale" comes from having a skull similar to the orca or killer whale.

Pseudorca crassidens

Stefan Thiesen Buntrabe · CC BY 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
Also called
false killer whalePBDB
Sits inside
PseudorcaPBDB
Diet
piscivore, carnivorePBDB, for Delphinidae
Life habit
aquatic, depth=surfacePBDB, for Cetacea
Motility
actively mobilePBDB, for Cetacea
Environment
marine,freshwaterPBDB, for Odontoceti

Time the record covers

At least 117 thousand years on record.

The record covers at least 129 ka to 11.7 ka. No occurrence read is dated outside 774 ka to 0 Mya.

Pleistocene — about 3 of 18 occurrencesPleistoceneHolocene — about 15 of 18 occurrences807 ka–764 ka Mya — about 0.0 occurrences764 ka–722 ka Mya — about 0.1 occurrences722 ka–679 ka Mya — about 0.1 occurrences679 ka–637 ka Mya — about 0.1 occurrences637 ka–595 ka Mya — about 0.1 occurrences595 ka–552 ka Mya — about 0.1 occurrences552 ka–510 ka Mya — about 0.1 occurrences510 ka–467 ka Mya — about 0.1 occurrences467 ka–425 ka Mya — about 0.1 occurrences425 ka–382 ka Mya — about 0.1 occurrences382 ka–340 ka Mya — about 0.1 occurrences340 ka–297 ka Mya — about 0.1 occurrences297 ka–255 ka Mya — about 0.1 occurrences255 ka–212 ka Mya — about 0.1 occurrences212 ka–170 ka Mya — about 0.3 occurrences170 ka–127 ka Mya — about 0.3 occurrences127 ka–85 ka Mya — about 0.6 occurrences85 ka–42 ka Mya — about 0.6 occurrences42 ka–0 Mya — about 15 occurrences129 ka – 11.7 ka1.27 Mya0 Mya

18 occurrences of Pseudorca crassidens on record. 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

18 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

Cromer Forest Bed — 52.88°N, 1.44°E

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The named rock units Pseudorca crassidens has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.

Found in the same rock

44 taxa

The Paleobiology Database records 18 sites for Pseudorca crassidens, 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

8 references

Each of the 18 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 content2

Picture of Pseudorca crassidens

Credit
Stefan Thiesen Buntrabe
Licence
CC BY 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-NoDerivs
Commercial use
the licence does not allow it

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 itPseudorca through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Owen 1846)