Protocallianassa mortoni

via iDigBio · CC0 · 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
- 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 least 17 million years on record.
The record covers at least 89.8 Mya to 72.2 Mya. No occurrence read is dated outside 93.9 Mya to 66 Mya.
21 occurrences of Protocallianassa mortoni 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
21 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
9 formations
- Navesink Formation · Monmouth Group7
- Merchantville Formation · Matawan Group2
- Mount Laurel Formation · Monmouth Group2
- Coon Creek Formation · Ripley Group2
- Wenonah Formation2
- Tinton Formation2
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The named rock units Protocallianassa mortoni 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.
Protocallianassa mortoni and its relatives
Late CretaceousWhere Protocallianassa mortoni and its relatives were recorded in the Late Cretaceous.
Found in the same rock
197 taxa- Ischyrhiza mira4 sites
- Tetracarcinus subquadratus4 sites
- Agerostrea mesenterica3 sites
- Exogyra (Exogyra) costata3 sites
- Hoploparia gabbi3 sites
- Inoceramus3 sites
- Longitubus3 sites
- Prehepatus lenolensis3 sites
- Raninella testacea3 sites
- Turritella3 sites
- Anomoeodus phaseolus2 sites
- Belemnitella americana2 sites
- Brachyrhizodus wichitaensis2 sites
- Choristothyris2 sites
- Cliona2 sites
- Crassatella vadosa2 sites
- Cymbophora2 sites
- Dhondtichlamys venusta2 sites
- Enchodus ferox2 sites
- Glycymeris2 sites
- Granocardium2 sites
- Gyrodes2 sites
- Homolopsis atlantica2 sites
- Hoploparia gladiator2 sites
The Paleobiology Database records 21 sites for Protocallianassa mortoni, 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
9 references- The Upper Cretaceous decapod crustaceans of New Jersey and Delaware.12
- Paleontology, biostratigraphy, and depositional environments of the Cretaceous-Tertiary transition in the New Jersey coastal plain2
- Decapod crustaceans from the Semilla Sandstone Member, Mancos Shale (Upper Cretaceous), north-central New Mexico1
- A New Cretaceous Crab, Diaulax Millerae (Crustacea: Decapoda), from the Northern Atlantic Coastal Plain, USA .A1
- A New Crab, Seorsus Wadei, from the Late Cretaceous Coon Creek Formation, Union County, Mississippi1
- A new Severn formation (Early Middle Maastrichtian, Late Cretaceous) locality in Prince Georges County, Maryland1
- Evidence of giant protostegid sea-turtles in the Cretaceous of New Jersey1
- An Upper Campanian vertebrate fauna from the Chesapeake and Delaware Canal, Delaware1
- Fossil Decapod Crustacea from the Late Cretaceous Coon Creek Formation, Union County, Mississippi1
Each of the 21 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 Protocallianassa mortoni
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Protocallianassa mortoni was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itProtocallianassa through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Pilsbry 1901)