Alternatus

No picture of Alternatus was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Alternatus itself, so it was not used. 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 Alternatus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
UniconidaePBDB
Diet
suspension feederPBDB, for Tentaculitida
Life habit
semi-infaunalPBDB, for Tentaculitida
Motility
stationaryPBDB, for Tentaculitida
Vision
blindPBDB, for Tentaculita

Time the record covers

At most 2.4 million years on record.

Every occurrence read is dated to somewhere between 413.02 Mya and 410.62 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 5 of 5 occurrencesDevonian413–413 Mya — about 0.1 occurrences413–413 Mya — about 0.2 occurrences413–413 Mya — about 0.2 occurrences413–413 Mya — about 0.2 occurrences413–413 Mya — about 0.2 occurrences413–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–412 Mya — about 0.2 occurrences412–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.2 occurrences411–411 Mya — about 0.1 occurrences413.52 Mya410.12 Mya

5 occurrences of Alternatus on record, most of them in the Devonian. 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

1 formation

Ivane Horizon — 51.25°N, 21.57°EIvane Horizon — 51.42°N, 23.33°EIvane Horizon — 51.08°N, 19.58°E

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The named rock units Alternatus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Alternatus and its relatives

Devonian

Where Alternatus and its relatives were recorded in the Devonian.

Found in the same rock

19 taxa

The Paleobiology Database records 3 sites for Alternatus, 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

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

Media and terms

Media content0

No picture of Alternatus was found. Wikidata and iDigBio were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Alternatus itself, so it was not used.

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 Alternatus, or no answer at all. This entry cannot say which.

No 3D scan of Alternatus 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.

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

Keep going

What may have been alongside itUniconidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ljaschenko 1969