Electrona

Electrona is a genus of lanternfishes in the family Myctophidae.

Electrona

Valerie Loeb · Public Domain · 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
MyctophinaePBDB
Diet
carnivorePBDB, for Myctophiformes
Life habit
nektonicPBDB, for Myctophiformes
Motility
actively mobilePBDB, for Myctophiformes

Time the record covers

At least 21 million years on record.

The record covers at least 21.7 Mya to 129 ka. No occurrence read is dated outside 25.2 Mya to 11.7 ka.

Oligocene — about 1 of 50 occurrencesOligoceneMiocene — about 16 of 50 occurrencesMiocenePliocene — about 15 of 50 occurrencesPliocenePleistocene — about 18 of 50 occurrencesPleistocene26–25 Mya — about 0.1 occurrences25–24 Mya — about 0.2 occurrences24–23 Mya — about 0.2 occurrences23–22 Mya — about 0.5 occurrences22–21 Mya — about 0.9 occurrences21–21 Mya — about 2 occurrences21–20 Mya — about 2 occurrences20–19 Mya — about 2 occurrences19–18 Mya — about 2 occurrences18–17 Mya — about 2 occurrences17–16 Mya — about 2 occurrences16–15 Mya — about 0.8 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.6 occurrences10–9.4 Mya — about 0.7 occurrences9.4–8.6 Mya — about 0.7 occurrences8.6–7.7 Mya — about 0.7 occurrences7.7–6.9 Mya — about 0.5 occurrences6.9–6.0 Mya — about 0.2 occurrences6.0–5.1 Mya — about 1 occurrence5.1–4.3 Mya — about 4 occurrences4.3–3.4 Mya — about 5 occurrences3.4–2.6 Mya — about 6 occurrences2.6–1.7 Mya — about 6 occurrences1.7–857 ka Mya — about 3 occurrences857 ka–0 Mya — about 8 occurrences21.7 Mya129 ka25.7 Mya0 Mya

50 occurrences of Electrona on record, most of them in the Pleistocene. 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

50 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

16 formations

Mount Harris — 44.48°S, 170.90°EMount Harris — 45.21°S, 170.88°EMount Harris — 45.15°S, 170.93°EMount Harris — 44.49°S, 171.01°ELindos Bay — 36.09°N, 28.01°ELindos Bay — 36.36°N, 28.21°ECubagua — 10.83°N, 64.17°WBells Creek Mudstone — 41.34°S, 175.46°EShinzato — 26.12°N, 127.74°EShinzato — 26.36°N, 127.98°EPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.75°N, 118.29°WTimms Point Silt — 33.73°N, 118.28°WNavidad — 33.90°S, 71.84°WWaioha Shellbeds — 34.50°S, 172.96°EPakaurangi — 36.24°S, 174.28°ERifle Butts Siltstone — 45.14°S, 170.93°EWhenuataru Tuff — 44.23°S, 176.23°EHijikata — 34.79°N, 137.97°EPico — 33.59°N, 117.85°WMiyata — 35.19°N, 39.65°EArgille Azzurre — 43.31°N, 11.49°E

Loading coastlines…

The named rock units Electrona has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 occurrences have no formation on record, which is common for older literature.

Electrona and its relatives

Pleistocene

Where Electrona and its relatives were recorded in the Pleistocene.

Found in the same rock

944 taxa

The Paleobiology Database records 48 sites for Electrona, 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

20 references

Each of the 50 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. 8 further references are not listed. 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 Electrona

Credit
Valerie Loeb
Licence
Public Domain
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Electrona antarctica · MCZ:Ich:95244

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 itMyctophinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Goode and Bean 1895