Brachyura
Searched as Crab indet.. The Paleobiology Database treats Brachyura as the accepted name.
No picture of Brachyura was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Brachyura itself, so it was not used. 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 Brachyura, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Also called
- crabPBDB
- Sits inside
- MeiuraPBDB
- 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 31 million years on record.
The record covers at least 72.2 Mya to 41.03 Mya. No occurrence read is dated outside 83.6 Mya to 37.71 Mya.
4 occurrences of Brachyura on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
4 occurrences- Late Cretaceous50%
- Eocene50%
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
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The named rock units Brachyura has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Brachyura and its relatives
Late CretaceousWhere Brachyura and its relatives were recorded in the Late Cretaceous.
Found in the same rock
3,419 taxa- Turritella25 sites
- Ostrea23 sites
- Chlamys20 sites
- Conus20 sites
- Callianassa14 sites
- Cypraea14 sites
- Lithophaga14 sites
- Bryozoa13 sites
- Dentalium13 sites
- Chama12 sites
- Daira speciosa12 sites
- Lithophaga lithophaga12 sites
- Crassatella11 sites
- Ficus11 sites
- Lima lima11 sites
- Modiolus11 sites
- Nucula11 sites
- Balanus10 sites
- Cardium10 sites
- Echinoidea10 sites
- Epitonium10 sites
- Natica10 sites
- Pitar10 sites
- Schizaster10 sites
The Paleobiology Database records at least 925 sites for Brachyura, and this reads 240 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- Community structure and evaluation of trophic analysis in paleoecology Stone City Formation (Middle Eocene, Texas)2
- Stratigraphy of the outcropping post-Magothy Upper Cretaceous formations in Southern New Jersey an Northern Delmarva peninsula, Delaware and Maryland2
Each of the 4 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
3D model
- Source
- Sketchfab
- Credit
- Auckland Museum
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
No picture of Brachyura was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Brachyura itself, so it was not used.
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 Brachyura, or no answer at all. This entry cannot say which.
Smithsonian Open Access and MorphoSource were 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 itMeiura through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1802