Astrodapsis

Astrodapsis

James St. John · CC BY 2.0 · via Wikidata/Commons. 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
EchinarachniidaePBDB
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 least 7.1 million years on record.

The record covers at least 12.5 Mya to 5.333 Mya. No occurrence read is dated outside 23.04 Mya to 2.58 Mya.

Oligocene — about 0 of 57 occurrencesMiocene — about 47 of 57 occurrencesMiocenePliocene — about 10 of 57 occurrencesPliocenePleistocene — about 0 of 57 occurrences24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.2 occurrences22–21 Mya — about 0.2 occurrences21–21 Mya — about 0.2 occurrences21–20 Mya — about 0.2 occurrences20–19 Mya — about 0.2 occurrences19–19 Mya — about 0.2 occurrences19–18 Mya — about 0.2 occurrences18–17 Mya — about 0.2 occurrences17–16 Mya — about 0.2 occurrences16–16 Mya — about 0.4 occurrences16–15 Mya — about 0.5 occurrences15–14 Mya — about 0.5 occurrences14–14 Mya — about 1 occurrence14–13 Mya — about 2 occurrences13–12 Mya — about 2 occurrences12–11 Mya — about 2 occurrences11–11 Mya — about 3 occurrences11–9.9 Mya — about 3 occurrences9.9–9.2 Mya — about 3 occurrences9.2–8.5 Mya — about 3 occurrences8.5–7.8 Mya — about 3 occurrences7.8–7.1 Mya — about 4 occurrences7.1–6.4 Mya — about 6 occurrences6.4–5.7 Mya — about 6 occurrences5.7–4.9 Mya — about 5 occurrences4.9–4.2 Mya — about 4 occurrences4.2–3.5 Mya — about 3 occurrences3.5–2.8 Mya — about 0.5 occurrences2.8–2.1 Mya — about 0.2 occurrences12.5 Mya5.333 Mya23.5 Mya2.1 Mya

57 occurrences of Astrodapsis 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

57 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

12 formations

Pancho Rico — 35.90°N, 120.84°WPancho Rico — 36.20°N, 121.03°WPancho Rico — 36.13°N, 121.02°WPancho Rico — 36.03°N, 120.80°WPancho Rico — 36.03°N, 120.89°WPancho Rico — 35.97°N, 120.73°WPancho Rico — 36.13°N, 120.73°WSanta Margarita — 34.38°N, 118.95°WSanta Margarita — 37.12°N, 122.01°WSanta Margarita — 35.39°N, 120.61°WSanta Margarita — 36.27°N, 120.36°WSanta Margarita — 36.36°N, 120.45°WSanta Margarita — 35.49°N, 120.42°WJacalitos — 35.95°N, 120.21°WJacalitos — 36.04°N, 120.45°WJacalitos — 36.06°N, 120.51°WJacalitos — 35.94°N, 120.15°WSan Margarita — 37.05°N, 122.07°WSan Margarita — 37.05°N, 122.01°WPico — 34.35°N, 118.49°WModelo — 34.13°N, 118.58°WModelo — 34.10°N, 118.44°WTowsley — 34.36°N, 118.51°WBriones — 37.90°N, 122.03°WEtchegoin — 36.18°N, 120.29°WEtchegoin — 36.10°N, 120.32°WNeroly — 37.99°N, 121.90°WBranch Canyon — 34.90°N, 119.69°WFernando — 37.83°N, 122.19°W

Loading coastlines…

The named rock units Astrodapsis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Astrodapsis and its relatives

Miocene

Where Astrodapsis and its relatives were recorded in the Miocene.

Found in the same rock

216 taxa

The Paleobiology Database records 39 sites for Astrodapsis, 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

15 references

Each of the 57 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. 3 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 Astrodapsis

Credit
James St. John
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Astrodapsis 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 itEchinarachniidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1856