Protocallianassa brevis
No picture of Protocallianassa brevis 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 Protocallianassa brevis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ProtocallianassaPBDB
- Diet
- detritivorePBDB, for Axiidea
- Life habit
- infaunalPBDB, for Axiidea
- Motility
- actively mobilePBDB, for Malacostraca
- Vision
- well-developedPBDB, for Malacostraca
Time the record covers
At most 8.2 million years on record.
Every occurrence read is dated to somewhere between 93.9 Mya and 85.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Protocallianassa brevis 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
6 occurrences- Late Cretaceous100%
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
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The named rock units Protocallianassa brevis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Protocallianassa brevis and its relatives
Late CretaceousWhere Protocallianassa brevis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
23 taxa- Bairdia arcuata3 sites
- Bairdia subdeltoidea3 sites
- Cythere semiplicata3 sites
- Astacidea2 sites
- Cytherella ovata2 sites
- Cytheridea perforata2 sites
- Enoploclytia leachi2 sites
- Oncopareia esocina2 sites
- Pollicipes glaber2 sites
- Protocallianassa gracilis2 sites
- Schlueteria tetracheles2 sites
- Acrolamna acuminata1 site
- Arcoscalpellum quadratum1 site
- Cretalamna appendiculata1 site
- Cretiscalpellum unguis1 site
- Cythere concentrica1 site
- Cythere karsteni1 site
- Cythere ornatissima1 site
- Cythere serrulata1 site
- Cytherella muensteri1 site
- Cytherideis laevigata1 site
- Ptychodus mammillaris1 site
- Squalus1 site
The Paleobiology Database records 6 sites for Protocallianassa brevis, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
1 referenceEach 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 content0
No picture of Protocallianassa brevis 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 Protocallianassa brevis, 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 itProtocallianassa through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Fritsch and Kafka 1887)