Romaleon sanbonsugii

No picture of Romaleon sanbonsugii was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Romaleon sanbonsugii, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
RomaleonPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB, for Cancridae
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 23.04 Mya and 5.333 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 0 of 14 occurrencesMiocene — about 14 of 14 occurrencesMiocenePliocene — about 0 of 14 occurrences24–23 Mya — about 0.1 occurrences23–22 Mya — about 0.4 occurrences22–22 Mya — about 0.4 occurrences22–21 Mya — about 0.4 occurrences21–20 Mya — about 0.4 occurrences20–20 Mya — about 0.6 occurrences20–19 Mya — about 0.6 occurrences19–19 Mya — about 0.6 occurrences19–18 Mya — about 0.6 occurrences18–17 Mya — about 0.6 occurrences17–17 Mya — about 0.6 occurrences17–16 Mya — about 0.6 occurrences16–15 Mya — about 0.6 occurrences15–15 Mya — about 0.6 occurrences15–14 Mya — about 0.6 occurrences14–14 Mya — about 0.6 occurrences14–13 Mya — about 0.6 occurrences13–12 Mya — about 0.6 occurrences12–12 Mya — about 0.6 occurrences12–11 Mya — about 0.4 occurrences11–10 Mya — about 0.4 occurrences10–9.8 Mya — about 0.4 occurrences9.8–9.2 Mya — about 0.4 occurrences9.2–8.6 Mya — about 0.4 occurrences8.6–8.0 Mya — about 0.4 occurrences8.0–7.3 Mya — about 0.4 occurrences7.3–6.7 Mya — about 0.4 occurrences6.7–6.1 Mya — about 0.4 occurrences6.1–5.5 Mya — about 0.4 occurrences5.5–4.8 Mya — about 0.1 occurrences23.5 Mya4.8 Mya

14 occurrences of Romaleon sanbonsugii on record, most of them in the Miocene. 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

14 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

Higashibessho — 36.74°N, 137.16°E

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The named rock units Romaleon sanbonsugii has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Romaleon sanbonsugii and its relatives

Miocene

Where Romaleon sanbonsugii and its relatives were recorded in the Miocene.

Found in the same rock

6 taxa

The Paleobiology Database records 2 sites for Romaleon sanbonsugii, 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

4 references

Each of the 14 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

No picture of Romaleon sanbonsugii was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Romaleon sanbonsugii, or no answer at all. This entry cannot say which.

No 3D scan of Romaleon sanbonsugii 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itRomaleon through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Imaizumi 1962)