Hydrurga leptonyx

The leopard seal, also referred to as the sea leopard, is a long and muscular seal native to the Southern Ocean of Antarctica and southern Patagonia. It is the second largest species of seal in the Antarctic. It is the same length as, but half the weight of, a walrus. Its fur coat is countershaded, being silver on the bottom and dark gray on the top, and is distinctive for its leopard-like pattern of dark spots.

Hydrurga leptonyx

Godot13 · 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
leopard sealPBDB
Sits inside
HydrurgaPBDB
Diet
piscivore, carnivorePBDB, for Phocidae
Life habit
amphibiousPBDB, for Pinnipedia
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB, for Pinnipedia

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 6 occurrencesHolocene — about 6 of 6 occurrences17 ka–0 Mya — about 6 occurrences512 ka0 Mya

6 occurrences of Hydrurga leptonyx 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

6 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.

Hydrurga leptonyx and its relatives

Holocene

Where Hydrurga leptonyx and its relatives were recorded in the Holocene.

Found in the same rock

27 taxa

The Paleobiology Database records 6 sites for Hydrurga leptonyx, 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

4 references

Each of the 6 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 Hydrurga leptonyx

Credit
Godot13
Licence
CC BY-SA 4.0
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 itHydrurga through timeFormations of the HoloceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (de Blainville 1820)