Chasmocarcinus seymourensis
via iDigBio · 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
- ChasmocarcinusPBDB
- Diet
- carnivorePBDB, for Decapoda
- Life habit
- epifaunalPBDB, for Decapoda
- Motility
- actively mobilePBDB, for Malacostraca
- Vision
- well-developedPBDB, for Malacostraca
Time the record covers
At least 7 million years on record.
The record covers at least 48.07 Mya to 41.03 Mya. No occurrence read is dated outside 56 Mya to 37.71 Mya.
3 occurrences of Chasmocarcinus seymourensis on record, most of them in the Eocene. 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
3 occurrences- Eocene100%
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
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The named rock units Chasmocarcinus seymourensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chasmocarcinus seymourensis and its relatives
EoceneWhere Chasmocarcinus seymourensis and its relatives were recorded in the Eocene.
Found in the same rock
37 taxa- Arrhoges (Antarctohoges) diversicostata1 site
- Austroficopsis wimani1 site
- Austrotoma oliveroi1 site
- Austrotoma ventricosa1 site
- Bulla glacialis1 site
- Cadulus (Gadila) antarctotubulus1 site
- Colposigma euthenia1 site
- Conomitra iredalei1 site
- Cosmasyrinx brychiosinus1 site
- Cucullaea raea1 site
- Cyrtochetus (Cyrtochetus) bucciniformis1 site
- Eoscaphella fordycei1 site
- Eurhomalea newtoni1 site
- Fusinus graciloaustralis1 site
- Gaimardia flemingi1 site
- Gomphina iheringi1 site
- Lahillia wilckensi1 site
- Lyreidus antarcticus1 site
- Mactra irizari1 site
- Mya (Arenomya) nucleoides1 site
- Nucula (Leionucula) palmeri1 site
- Ostrea antarctica1 site
- Panopea eightsi1 site
- Pareuthria mccormicki1 site
The Paleobiology Database records 3 sites for Chasmocarcinus seymourensis, 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
3 references- Decapod crustaceans from the Eocene La Meseta Formation, Seymour Island, Antarctica: a model for preservation of decapods1
- Eocene decapod crustaceans from Antartica1
- New Fossil Crabs (Decapoda: Brachyura) from the La Meseta Formation (Eocene) of Antarctica: Paleogeographic and Biogeographic Implications1
Each of the 3 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 Chasmocarcinus seymourensis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
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 itChasmocarcinus through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Feldmann and Zinsmeister 1984