Gymnarus

Gymnarus

via iDigBio · CC BY · 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
PugnellinaePBDB
Diet
detritivorePBDB, for Aporrhaidae
Life habit
semi-infaunalPBDB, for Aporrhaidae
Motility
slow-movingPBDB, for Aporrhaidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 10 million years on record.

The record covers at least 93.9 Mya to 83.6 Mya. No occurrence read is dated outside 100.5 Mya to 72.2 Mya.

Early Cretaceous — about 0 of 39 occurrencesLate Cretaceous — about 39 of 39 occurrencesLate Cretaceous101–100 Mya — about 0.1 occurrences100–99 Mya — about 0.1 occurrences99–98 Mya — about 0.1 occurrences98–97 Mya — about 0.1 occurrences97–96 Mya — about 0.1 occurrences96–95 Mya — about 0.1 occurrences95–94 Mya — about 0.1 occurrences94–93 Mya — about 6 occurrences93–92 Mya — about 8 occurrences92–91 Mya — about 8 occurrences91–90 Mya — about 8 occurrences90–89 Mya — about 4 occurrences89–88 Mya — about 0.5 occurrences88–87 Mya — about 0.5 occurrences87–86 Mya — about 0.5 occurrences86–85 Mya — about 0.3 occurrences84–83 Mya — about 0.0 occurrences83–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.0 occurrences93.9 Mya83.6 Mya101.1 Mya71.6 Mya

39 occurrences of Gymnarus on record, most of them in the Late Cretaceous. 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

39 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

7 formations

Redding — 40.64°N, 122.36°WRedding — 40.64°N, 122.24°WRedding — 40.66°N, 122.25°WRedding — 40.65°N, 122.25°WRedding — 40.67°N, 122.14°WLadd — 33.75°N, 117.64°WLadd — 33.75°N, 117.64°WMungo River — 4.44°N, 9.49°EMungo River — 4.46°N, 9.49°ETres Hermanos — 34.44°N, 107.47°WLogbadjeck — 3.92°N, 10.04°EPanoche — 35.88°N, 120.10°WHornbrook — 41.81°N, 122.51°W

Loading coastlines…

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

Gymnarus and its relatives

Late Cretaceous

Where Gymnarus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

173 taxa

The Paleobiology Database records 38 sites for Gymnarus, 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

10 references

Each of the 39 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 Gymnarus

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Gymnarus 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 itPugnellinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1869)