Eucrassatella (Hybolophus)

Hybolophus gibbosus (G.B.Sowerby I, 1832), a relative of Eucrassatella (Hybolophus) — not Eucrassatella (Hybolophus) itself

Not Eucrassatella (Hybolophus). This is Hybolophus gibbosus (G.B.Sowerby I, 1832), a relative — both are Crassatellidae.

Marco Polo amarillas vargas · CC0 · via GBIF. 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
EucrassatellaPBDB
Diet
suspension feederPBDB
Life habit
semi-infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Crassatelloidea
Environment
marinePBDB, for Crassatelloidea

Time the record covers

At least 22 million years on record.

The record covers at least 23.04 Mya to 129 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.

Oligocene — about 5 of 134 occurrencesOligoceneMiocene — about 109 of 134 occurrencesMiocenePliocene — about 8 of 134 occurrencesPliocenePleistocene — about 11 of 134 occurrencesPleistocene28–27 Mya — about 0.5 occurrences27–26 Mya — about 1 occurrence26–25 Mya — about 1 occurrence25–24 Mya — about 1 occurrence24–23 Mya — about 1 occurrence23–22 Mya — about 4 occurrences22–21 Mya — about 5 occurrences21–20 Mya — about 5 occurrences20–19 Mya — about 8 occurrences19–19 Mya — about 8 occurrences19–18 Mya — about 8 occurrences18–17 Mya — about 8 occurrences17–16 Mya — about 8 occurrences16–15 Mya — about 8 occurrences15–14 Mya — about 8 occurrences14–13 Mya — about 2 occurrences13–12 Mya — about 1 occurrence12–11 Mya — about 4 occurrences11–10 Mya — about 7 occurrences10–9.3 Mya — about 7 occurrences9.3–8.4 Mya — about 7 occurrences8.4–7.4 Mya — about 7 occurrences7.4–6.5 Mya — about 3 occurrences6.5–5.6 Mya — about 2 occurrences5.6–4.6 Mya — about 3 occurrences4.6–3.7 Mya — about 3 occurrences3.7–2.8 Mya — about 2 occurrences2.8–1.9 Mya — about 0.9 occurrences1.9–928 ka Mya — about 0.5 occurrences928 ka–0 Mya — about 10 occurrences23.04 Mya129 ka27.8 Mya0 Mya

134 occurrences of Eucrassatella (Hybolophus) on record, most of them in the Miocene. 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

134 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

27 formations

Gatun — 9.35°N, 79.83°WGatun — 9.35°N, 79.81°WGatun — 9.17°N, 80.00°WGatun — 9.28°N, 79.91°WVaqueros — 34.30°N, 117.49°WVaqueros — 36.20°N, 121.32°WVaqueros — 34.33°N, 119.03°WVaqueros — 34.38°N, 118.84°WVaqueros — 34.32°N, 119.08°WVaqueros — 34.35°N, 118.92°WVaqueros — 34.42°N, 119.27°WVaqueros — 34.52°N, 120.43°WVaqueros — 34.57°N, 120.29°WVaqueros — 34.53°N, 120.31°WVaqueros — 34.58°N, 120.16°WVaqueros — 34.62°N, 120.15°WVaqueros — 34.98°N, 120.21°WVaqueros — 35.31°N, 120.04°WVaqueros — 36.07°N, 121.28°WCastilletes — 11.94°N, 71.32°WCastilletes — 11.95°N, 71.29°WJimol — 12.03°N, 71.30°WJimol — 11.96°N, 71.43°WJimol — 11.92°N, 71.42°WLomita Marl — 33.79°N, 118.35°WLomita Marl — 33.74°N, 118.29°WTubará — 10.75°N, 75.00°WZorritos — 3.67°S, 80.65°WZorritos — 3.80°S, 80.50°WSpringvale — 10.62°N, 61.05°WRincon — 34.04°N, 120.04°WRincon — 34.74°N, 120.31°WSan Lorenzo — 37.12°N, 122.02°WTemblor — 35.95°N, 120.22°WTemblor — 35.95°N, 120.25°WMare — 10.00°N, 64.00°WMare — 10.00°N, 71.00°WCantaure — 11.90°N, 69.84°WDaule — 1.73°S, 80.25°WJewett — 35.49°N, 118.83°WCharco Azul — 8.55°N, 83.00°WArmuelles — 8.03°N, 82.92°WPenita — 8.23°N, 82.97°WFerrotepec — 18.03°N, 103.60°WCaujarao — 11.00°N, 69.83°WPiojó — 10.75°N, 75.00°WImperial — 32.83°N, 116.04°WCapas de Chimare — 12.34°N, 71.30°WPacific Muck — 8.93°N, 79.56°W

Loading coastlines…

The named rock units Eucrassatella (Hybolophus) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 further formations hold fewer occurrences each and are not listed. 8 occurrences have no formation on record, which is common for older literature.

Eucrassatella (Hybolophus) and its relatives

Miocene

Where Eucrassatella (Hybolophus) and its relatives were recorded in the Miocene.

Found in the same rock

1,154 taxa

The Paleobiology Database records 68 sites for Eucrassatella (Hybolophus), 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

36 references

Each of the 134 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. 24 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 content1

Picture of Hybolophus gibbosus (G.B.Sowerby I, 1832)

Source
GBIF
Credit
Marco Polo amarillas vargas
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Eucrassatella (Hybolophus) 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 itEucrassatella through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stewart 1930)