Sirembo

Sirembo is a genus of cusk-eels of the subfamily Neobythitinae, family Ophidiidae, which are found in the Indian and Pacific Oceans. The species in this genus have a rather robust body with the dorsal fin originating over vertebrae 1–5. The head and bod are completely covered in scales, they have large eyes which are almost equal in diameter to the length of snout, the pelvic fins have two rays which are joined together within an area of tough skin, They have a short spine on the operculum which does not extend to the posterior edge of the head. Their coloration is variable but almost all species have black spots or eyespots on the dorsal fin, sometimes both, while the middle part of the anal fin frequently has a black band. The body and/or head are marked with diagonal or horizontal dark stripes or horizontal rows of quite large dusky spots.

Sirembo

(Temminck and Schlegel) · 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
SirembinaePBDB
Diet
carnivore, parasitePBDB, for Ophidiiformes
Life habit
nektobenthicPBDB, for Ophidiiformes
Motility
actively mobilePBDB, for Ophidiiformes

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 774 ka. No occurrence read is dated outside 37.71 Mya to 129 ka.

Eocene — about 1 of 3 occurrencesEoceneOligocene — about 0 of 3 occurrencesMiocene — about 0 of 3 occurrencesPliocene — about 0 of 3 occurrencesPleistocene — about 2 of 3 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–33 Mya — about 0.2 occurrences2.6–1.3 Mya — about 0.5 occurrences1.3–0 Mya — about 1 occurrence33.9 Mya774 ka38.5 Mya0 Mya

3 occurrences of Sirembo on record, most of them in the Pleistocene. 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

3 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

3 formations

Yazoo — 31.93°N, 91.94°WLiuchungchi — 23.44°N, 120.59°EChiting — 23.02°N, 120.28°E

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

Sirembo and its relatives

Pleistocene

Where Sirembo and its relatives were recorded in the Pleistocene.

Found in the same rock

122 taxa

The Paleobiology Database records 3 sites for Sirembo, 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

3 references

Each of the 3 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 content1

Picture of Sirembo

Credit
(Temminck and Schlegel)
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Sirembo 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 itSirembinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bleeker 1857