Hologyra expansa

No picture of Hologyra expansa 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 Hologyra expansa, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HologyraPBDB
Diet
detritivorePBDB, for Naticopsidae
Life habit
epifaunalPBDB, for Naticopsidae
Motility
slow-movingPBDB, for Naticopsidae
Vision
limitedPBDB, for Naticopsidae

Time the record covers

At most 5.9 million years on record.

Every occurrence read is dated to somewhere between 239.48 Mya and 233.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Triassic — about 3 of 16 occurrencesMiddle TriassicLate Triassic — about 13 of 16 occurrencesLate Triassic240–239 Mya — about 0.2 occurrences239–239 Mya — about 0.3 occurrences239–239 Mya — about 0.3 occurrences239–239 Mya — about 0.3 occurrences239–238 Mya — about 0.3 occurrences238–238 Mya — about 0.3 occurrences238–238 Mya — about 0.3 occurrences238–238 Mya — about 0.3 occurrences238–237 Mya — about 0.3 occurrences237–237 Mya — about 0.3 occurrences237–237 Mya — about 0.3 occurrences237–237 Mya — about 0.9 occurrences237–237 Mya — about 0.9 occurrences237–236 Mya — about 0.9 occurrences236–236 Mya — about 0.9 occurrences236–236 Mya — about 0.9 occurrences236–236 Mya — about 0.9 occurrences236–235 Mya — about 0.9 occurrences235–235 Mya — about 0.9 occurrences235–235 Mya — about 0.9 occurrences235–235 Mya — about 0.9 occurrences235–234 Mya — about 0.9 occurrences234–234 Mya — about 0.9 occurrences234–234 Mya — about 0.9 occurrences234–234 Mya — about 0.9 occurrences234–234 Mya — about 0.7 occurrences240 Mya233.1 Mya

16 occurrences of Hologyra expansa on record, most of them in the Late Triassic. 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

16 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

Cassian — 46.68°N, 12.15°ECassian — 46.52°N, 11.65°ECassian — 46.51°N, 11.96°ECassian — 46.54°N, 12.10°ECassian — 46.64°N, 12.20°ECassian — 46.53°N, 11.92°ECassian — 46.57°N, 11.94°ECassian — 46.59°N, 12.26°ESciliar — 46.35°N, 12.02°E

Loading coastlines…

The named rock units Hologyra expansa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Hologyra expansa and its relatives

Late Triassic

Where Hologyra expansa and its relatives were recorded in the Late Triassic.

Found in the same rock

479 taxa

The Paleobiology Database records 14 sites for Hologyra expansa, 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 16 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 content0

No picture of Hologyra expansa 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 Hologyra expansa, 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 itHologyra through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Laube 1868)