Berardius arnuxii

Arnoux's beaked whale, also called the southern four-toothed whale, southern beaked whale, New Zealand beaked whale, southern giant bottlenose whale and southern porpoise whale is one of the species of Berardius. Arnoux's and Baird's beaked whales are so similar that researchers debated whether or not they are simply two populations of the same species, until genetic evidence and their wide geographical separation led them to be classified as separate. Little is known about their behavior due to infrequent encounters with live individuals.

Berardius arnuxii

Jörg Mazur · 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
Also called
Arnoux's beaked whalePBDB
Sits inside
BerardiusPBDB
Diet
piscivore, carnivorePBDB, for Ziphiidae
Life habit
aquatic, depth=surfacePBDB, for Cetacea
Motility
actively mobilePBDB, for Cetacea
Environment
marine,freshwaterPBDB, for Odontoceti

Time the record covers

At most 12 thousand years on record.

Every occurrence read is dated to somewhere between 11.7 ka and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 0 of 8 occurrencesHolocene — about 8 of 8 occurrences17 ka–0 Mya — about 8 occurrences512 ka0 Mya

8 occurrences of Berardius arnuxii on record, most of them in the Holocene. 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

8 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.

Berardius arnuxii and its relatives

Holocene

Where Berardius arnuxii and its relatives were recorded in the Holocene.

Found in the same rock

No other named taxon is catalogued from any of those sites.

The Paleobiology Database records 8 sites for Berardius arnuxii, and this reads all of them.

Entered from

2 references

Each of the 8 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 Berardius arnuxii

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

Structured light scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Berardius arnuxii · SAMA:Mammalogy:M5012

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 itBerardius through timeFormations of the HoloceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Duvernoy 1851