Rhabdus

The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, Rhabdus, and five species, as follows:Rhabdus aequatorius Rhabdus dalli Rhabdus perceptus Rhabdus rectius Rhabdus toyamaense

Rhabdus

KDS4444 · 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
Sits inside
RhabdidaePBDB
Diet
deposit feederPBDB, for Dentaliida
Life habit
semi-infaunalPBDB, for Dentaliida
Motility
slow-movingPBDB, for Dentaliida
Vision
blindPBDB, for Scaphopoda

Time the record covers

At least 26 million years on record.

The record covers at least 27.3 Mya to 774 ka. No occurrence read is dated outside 33.9 Mya to 129 ka.

Eocene — about 0 of 16 occurrencesOligocene — about 3 of 16 occurrencesOligoceneMiocene — about 9 of 16 occurrencesMiocenePliocene — about 3 of 16 occurrencesPleistocene — about 1 of 16 occurrences35–33 Mya — about 0.1 occurrences33–32 Mya — about 0.2 occurrences32–31 Mya — about 0.2 occurrences31–30 Mya — about 0.2 occurrences30–29 Mya — about 0.2 occurrences29–28 Mya — about 0.2 occurrences28–27 Mya — about 0.4 occurrences27–25 Mya — about 0.5 occurrences25–24 Mya — about 0.5 occurrences24–23 Mya — about 0.5 occurrences23–22 Mya — about 0.0 occurrences21–20 Mya — about 0.2 occurrences20–18 Mya — about 0.3 occurrences18–17 Mya — about 0.3 occurrences17–16 Mya — about 0.3 occurrences16–15 Mya — about 3 occurrences15–14 Mya — about 3 occurrences14–13 Mya — about 0.6 occurrences13–12 Mya — about 0.5 occurrences12–10 Mya — about 0.3 occurrences10–9.2 Mya — about 0.3 occurrences9.2–8.1 Mya — about 0.3 occurrences8.1–6.9 Mya — about 0.2 occurrences5.8–4.6 Mya — about 1 occurrence4.6–3.5 Mya — about 2 occurrences3.5–2.3 Mya — about 0.3 occurrences1.2–0 Mya — about 1 occurrence27.3 Mya774 ka34.6 Mya0 Mya

16 occurrences of Rhabdus 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

16 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

10 formations

Astoria — 44.73°N, 124.06°WAstoria — 43.40°N, 124.28°WBear Lake — 55.20°N, 161.59°WBrejning Clay — 56.17°N, 9.75°EVejle Fjord — 55.18°N, 11.88°EEmpire — 43.39°N, 124.28°WGatun — 9.17°N, 80.00°WWildcat — 40.64°N, 124.31°WTowsley — 34.36°N, 118.51°WTimms Point Silt — 33.73°N, 118.28°WBoom — 51.12°N, 4.36°E

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

Rhabdus and its relatives

Miocene

Where Rhabdus and its relatives were recorded in the Miocene.

Found in the same rock

316 taxa

The Paleobiology Database records 8 sites for Rhabdus, 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

10 references

Each of the 16 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 Rhabdus

Credit
KDS4444
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Rhabdus was found in MorphoSource and Sketchfab.

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 itRhabdidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Pilsbry and Sharp 1897)