Narke

Narke is a genus of electric rays in the family Narkidae, found in the western Indo-Pacific and off southern Africa. They have nearly circular pectoral fin discs and short, thick tails with large caudal fins, and can be identified by their single dorsal fin. There are three described species, as well as a fourth undescribed dwarf species from Taiwan.

Narke

RYO SATO from Hamamatsu, Shizuoka, Japan · CC BY-SA 2.0 · 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
NarkidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At most 6.7 million years on record.

The one occurrence read is dated to somewhere between 20.45 Mya and 13.82 Mya, which is a dating window rather than a span.

Miocene — about 1 of 1 occurrenceMiocene21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–19 Mya — about 0.0 occurrences19–19 Mya — about 0.0 occurrences19–19 Mya — about 0.0 occurrences19–19 Mya — about 0.0 occurrences19–18 Mya — about 0.0 occurrences18–18 Mya — about 0.0 occurrences18–18 Mya — about 0.0 occurrences18–18 Mya — about 0.0 occurrences18–17 Mya — about 0.0 occurrences17–17 Mya — about 0.0 occurrences17–17 Mya — about 0.0 occurrences17–17 Mya — about 0.0 occurrences17–16 Mya — about 0.0 occurrences16–16 Mya — about 0.0 occurrences16–16 Mya — about 0.0 occurrences16–16 Mya — about 0.0 occurrences16–15 Mya — about 0.0 occurrences15–15 Mya — about 0.0 occurrences15–15 Mya — about 0.0 occurrences15–15 Mya — about 0.0 occurrences15–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences20.9 Mya13.3 Mya

1 occurrence of Narke 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

1 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

Makino — 34.75°N, 136.27°E

Loading coastlines…

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

Narke and its relatives

Miocene

Where Narke and its relatives were recorded in the Miocene.

Found in the same rock

3 taxa

The Paleobiology Database records 1 site for Narke, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Narke

Credit
RYO SATO from Hamamatsu, Shizuoka, Japan
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

No 3D scan of Narke 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.

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 itNarkidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kaup 1826