Trigonarca angolensis

No picture of Trigonarca angolensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Trigonarca angolensis, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
TrigonarcaPBDB
Diet
suspension feederPBDB, for Glycymerididae
Life habit
semi-infaunalPBDB, for Glycymerididae
Motility
facultatively mobilePBDB, for Glycymerididae
Vision
blindPBDB, for Bivalvia
Environment
coastal,inner shelf,outer shelf,oceanicPBDB, for Glycymerididae

Time the record covers

At least 23 million years on record.

The record covers at least 89.8 Mya to 66 Mya. No occurrence read is dated outside 93.9 Mya to 61.66 Mya.

Late Cretaceous — about 11 of 12 occurrencesLate CretaceousPaleocene — about 1 of 12 occurrencesPaleocene95–93 Mya — about 0.2 occurrences93–92 Mya — about 0.4 occurrences92–91 Mya — about 0.4 occurrences91–90 Mya — about 0.4 occurrences90–89 Mya — about 1 occurrence89–88 Mya — about 1 occurrence88–87 Mya — about 1 occurrence87–86 Mya — about 1 occurrence86–84 Mya — about 0.5 occurrences84–83 Mya — about 0.4 occurrences73–72 Mya — about 0.0 occurrences72–71 Mya — about 0.5 occurrences71–70 Mya — about 0.5 occurrences70–69 Mya — about 0.5 occurrences69–68 Mya — about 0.5 occurrences68–67 Mya — about 0.5 occurrences67–65 Mya — about 0.4 occurrences65–64 Mya — about 0.3 occurrences64–63 Mya — about 0.3 occurrences63–62 Mya — about 0.3 occurrences62–61 Mya — about 0.1 occurrences89.8 Mya66 Mya94.5 Mya61 Mya

12 occurrences of Trigonarca angolensis 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

12 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

3 formations

Mungo River — 4.49°N, 9.49°EMungo River — 4.44°N, 9.49°EAwgu Limestone — 6.08°N, 7.47°ERoca — 36.83°S, 69.26°W

Loading coastlines…

The named rock units Trigonarca angolensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Trigonarca angolensis and its relatives

Late Cretaceous

Where Trigonarca angolensis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

144 taxa

The Paleobiology Database records 12 sites for Trigonarca angolensis, 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

5 references

Each of the 12 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 Trigonarca angolensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Trigonarca angolensis, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itTrigonarca through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rennie 1929