Echinarachnius alaskense

Echinarachnius alaskense

via iDigBio · via iDigBio. 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
EchinarachniusPBDB
Diet
detritivorePBDB, for Clypeasteroida
Life habit
semi-infaunalPBDB, for Clypeasteroida
Motility
slow-movingPBDB, for Clypeasteroida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 18 million years on record.

The one occurrence read is dated to somewhere between 23.04 Mya and 5.333 Mya, which is a dating window rather than a span.

Oligocene — about 0 of 1 occurrenceMiocene — about 1 of 1 occurrenceMiocenePliocene — about 0 of 1 occurrence24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.0 occurrences22–22 Mya — about 0.0 occurrences22–21 Mya — about 0.0 occurrences21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–19 Mya — about 0.0 occurrences19–19 Mya — about 0.0 occurrences19–18 Mya — about 0.0 occurrences18–17 Mya — about 0.0 occurrences17–17 Mya — about 0.0 occurrences17–16 Mya — about 0.0 occurrences16–15 Mya — about 0.0 occurrences15–15 Mya — about 0.0 occurrences15–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences14–13 Mya — about 0.0 occurrences13–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–11 Mya — about 0.0 occurrences11–10 Mya — about 0.0 occurrences10–9.8 Mya — about 0.0 occurrences9.8–9.2 Mya — about 0.0 occurrences9.2–8.6 Mya — about 0.0 occurrences8.6–8.0 Mya — about 0.0 occurrences8.0–7.3 Mya — about 0.0 occurrences7.3–6.7 Mya — about 0.0 occurrences6.7–6.1 Mya — about 0.0 occurrences6.1–5.5 Mya — about 0.0 occurrences5.5–4.8 Mya — about 0.0 occurrences23.5 Mya4.8 Mya

1 occurrence of Echinarachnius alaskense 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

1 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

Topsy — 58.65°N, 137.57°W

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

Echinarachnius alaskense and its relatives

Miocene

Where Echinarachnius alaskense and its relatives were recorded in the Miocene.

Found in the same rock

No other named taxon is catalogued from that site.

The Paleobiology Database records 1 site for Echinarachnius alaskense, and this reads all of them.

Entered from

1 reference

Each of the 1 occurrence 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 content1

Picture of Echinarachnius alaskense

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Echinarachnius alaskense 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 itEchinarachnius through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Durham 1957