Harpago chiragra
Harpago chiragra, common name the Chiragra spider conch, is a species of very large sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs.

No machine-readable author provided. Pet~commonswiki assumed (based on copyright claims). · CC BY-SA 3.0 · via Wikipedia/Commons. 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
- Lambis (Harpago)PBDB
- Diet
- omnivore, grazerPBDB, for Strombidae
- Life habit
- epifaunalPBDB, for Strombidae
- Motility
- actively mobilePBDB, for Strombidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 763 thousand years on record.
Every occurrence read is dated to somewhere between 774 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Harpago chiragra on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
6 occurrences- Pleistocene100%
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
1 formation
Loading coastlines…
The named rock units Harpago chiragra 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.
Harpago chiragra and its relatives
PleistoceneWhere Harpago chiragra and its relatives were recorded in the Pleistocene.
Found in the same rock
38 taxa- Cancilla1 site
- Casmaria ponderosa1 site
- Cerithium1 site
- Cerithium columna1 site
- Conus1 site
- Conus ebraeus1 site
- Conus imperialis1 site
- Costellariidae1 site
- Cymatium1 site
- Cypraea1 site
- Cypraea (Erosaria) caputserpentis1 site
- Cypraea (Erosaria) helvola1 site
- Dolicholatirus1 site
- Drupa1 site
- Erosaria poraria1 site
- Fusinus1 site
- Harpa1 site
- Hastula1 site
- Linatella1 site
- Luria isabella1 site
- Mauritia maculifera1 site
- Mauritia mauritiana1 site
- Mitra1 site
- Mitra mitra1 site
The Paleobiology Database records 1 site for Harpago chiragra, 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
2 references- Fossil mollusks of Oahu, Hawaii Islands5
- Sedimentology of rocky shorelines: 4. Coarse gravel lithofacies, molluscan biofacies, and the stratigraphic and eustatic records in the type area of the Pleistocene Hulopoe Gravel, Lanai, Hawaii1
Each of the 6 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 content2
Picture of Harpago chiragra
- Source
- Wikipedia/Commons
- Credit
- No machine-readable author provided. Pet~commonswiki assumed (based on copyright claims).
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLambis (Harpago) through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)