Stephanodiscus excentricus

No picture of Stephanodiscus excentricus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Stephanodiscus excentricus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
StephanodiscusPBDB

Time the record covers

At least 1.1 million years on record.

The record covers at least 1.4 Mya to 210 ka. No occurrence read is dated outside 4.7 Mya to 11.7 ka.

Pliocene — about 1 of 5 occurrencesPliocenePleistocene — about 4 of 5 occurrencesPleistoceneHolocene — about 0 of 5 occurrences4.9–4.7 Mya — about 0.0 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.2 Mya — about 0.1 occurrences4.2–4.0 Mya — about 0.1 occurrences4.0–3.8 Mya — about 0.1 occurrences3.8–3.6 Mya — about 0.1 occurrences3.6–3.5 Mya — about 0.1 occurrences3.5–3.3 Mya — about 0.1 occurrences3.3–3.1 Mya — about 0.1 occurrences3.1–2.9 Mya — about 0.1 occurrences2.9–2.8 Mya — about 0.1 occurrences2.8–2.6 Mya — about 0.1 occurrences2.6–2.4 Mya — about 0.2 occurrences2.4–2.3 Mya — about 0.2 occurrences2.3–2.1 Mya — about 0.2 occurrences2.1–1.9 Mya — about 0.2 occurrences1.9–1.7 Mya — about 0.2 occurrences1.7–1.6 Mya — about 0.2 occurrences1.6–1.4 Mya — about 0.2 occurrences1.4–1.2 Mya — about 0.1 occurrences1.2–1.0 Mya — about 0.1 occurrences1.0–867 ka Mya — about 0.1 occurrences867 ka–693 ka Mya — about 0.1 occurrences693 ka–520 ka Mya — about 0.1 occurrences520 ka–347 ka Mya — about 0.1 occurrences347 ka–173 ka Mya — about 0.5 occurrences173 ka–0 Mya — about 2 occurrences1.4 Mya210 ka5.2 Mya0 Mya

5 occurrences of Stephanodiscus excentricus 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

5 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

Terrebonne — 44.36°N, 121.30°WKelseyville — 38.95°N, 122.85°WAlturas — 41.49°N, 120.65°W

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

Stephanodiscus excentricus and its relatives

Pleistocene

Where Stephanodiscus excentricus and its relatives were recorded in the Pleistocene.

Found in the same rock

46 taxa

The Paleobiology Database records 5 sites for Stephanodiscus excentricus, 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 5 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 content0

No picture of Stephanodiscus excentricus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itStephanodiscus through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hustedt 1952