Gregariella amara

No picture of Gregariella amara was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Gregariella amara, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
GregariellaPBDB
Diet
suspension feederPBDB, for Gregariella
Life habit
epifaunalPBDB, for Gregariella
Motility
stationary, attachedPBDB, for Gregariella
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 72.2 Mya and 61.66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 6 of 10 occurrencesLate CretaceousPaleocene — about 4 of 10 occurrencesPaleocene72–72 Mya — about 0.3 occurrences72–72 Mya — about 0.4 occurrences72–71 Mya — about 0.4 occurrences71–71 Mya — about 0.4 occurrences71–70 Mya — about 0.4 occurrences70–70 Mya — about 0.4 occurrences70–70 Mya — about 0.4 occurrences70–69 Mya — about 0.4 occurrences69–69 Mya — about 0.4 occurrences69–68 Mya — about 0.4 occurrences68–68 Mya — about 0.4 occurrences68–68 Mya — about 0.4 occurrences68–67 Mya — about 0.4 occurrences67–67 Mya — about 0.4 occurrences67–67 Mya — about 0.4 occurrences67–66 Mya — about 0.4 occurrences66–66 Mya — about 0.4 occurrences66–65 Mya — about 0.4 occurrences65–65 Mya — about 0.4 occurrences65–65 Mya — about 0.4 occurrences65–64 Mya — about 0.4 occurrences64–64 Mya — about 0.4 occurrences64–63 Mya — about 0.4 occurrences63–63 Mya — about 0.4 occurrences63–63 Mya — about 0.4 occurrences63–62 Mya — about 0.4 occurrences62–62 Mya — about 0.4 occurrences62–62 Mya — about 0.2 occurrences72.7 Mya61.2 Mya

10 occurrences of Gregariella amara 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

10 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

2 formations

  • Roca Formation · Malargüe GroupMendoza, La Pampa, Rio Negro · AR · 72.2–61.66 Mya7
  • Jagüel Formation · Malargüe GroupMendoza, La Pampa, Rio Negro · AR · 72.2–66 Mya3
Roca — 35.52°S, 69.72°WRoca — 35.85°S, 69.80°WRoca — 36.55°S, 68.15°WRoca — 37.62°S, 67.71°WJagüel — 35.85°S, 69.80°WJagüel — 36.55°S, 68.15°W

Loading coastlines…

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

Gregariella amara and its relatives

Late Cretaceous

Where Gregariella amara and its relatives were recorded in the Late Cretaceous.

Found in the same rock

13 taxa

The Paleobiology Database records 10 sites for Gregariella amara, 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

1 reference

Each of the 10 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 Gregariella amara was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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

No 3D scan of Gregariella amara 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 itGregariella through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Griffin et al. 2008