Astandes

Astandes

via iDigBio · CC0 · 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
MaturifusidaePBDB
Diet
carnivorePBDB, for Neogastropoda
Life habit
epifaunalPBDB, for Neogastropoda
Motility
actively mobilePBDB, for Neogastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 93 million years on record.

The record covers at least 165.3 Mya to 72.2 Mya. No occurrence read is dated outside 168.2 Mya to 66 Mya.

Middle Jurassic — about 11 of 21 occurrencesMiddle JurassicLate Jurassic — about 1 of 21 occurrencesLate JurassicEarly Cretaceous — about 0 of 21 occurrencesLate Cretaceous — about 9 of 21 occurrencesLate CretaceousPaleocene — about 0 of 21 occurrences170–167 Mya — about 5 occurrences167–163 Mya — about 5 occurrences163–160 Mya — about 0.9 occurrences160–156 Mya — about 1 occurrence96–92 Mya — about 1 occurrence92–89 Mya — about 2 occurrences85–82 Mya — about 0.6 occurrences82–78 Mya — about 1 occurrence78–75 Mya — about 1 occurrence75–71 Mya — about 1 occurrence71–67 Mya — about 1 occurrence67–64 Mya — about 0.6 occurrences165.3 Mya72.2 Mya170 Mya64 Mya

21 occurrences of Astandes on record, most of them in the Middle Jurassic. 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

21 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

4 formations

Redding — 40.65°N, 122.20°WPierre Shale — 43.27°N, 104.27°WAguja — 29.83°N, 103.25°WRipley — 35.23°N, 88.61°WRipley — 35.32°N, 88.42°W

Loading coastlines…

The named rock units Astandes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Astandes and its relatives

Middle Jurassic

Where Astandes and its relatives were recorded in the Middle Jurassic.

Found in the same rock

567 taxa

The Paleobiology Database records 20 sites for Astandes, 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

8 references

Each of the 21 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 content1

Picture of Astandes

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Astandes 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 itMaturifusidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.