Perrisonota
No picture of Perrisonota was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Perrisonota, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MalletiidaePBDB
- Diet
- deposit feederPBDB, for Nuculanoidea
- Life habit
- infaunalPBDB, for Nuculanoidea
- Motility
- facultatively mobilePBDB, for Nuculanoidea
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
52 occurrences of Perrisonota 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
52 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
7 formations
- Corsicana Marl Formation15
- Providence Formation13
- Severn Formation13
- Prairie Bluff Formation4
- Escondido Formation3
- Sandy Hook Formation2
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The named rock units Perrisonota 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.
Perrisonota and its relatives
Late CretaceousWhere Perrisonota and its relatives were recorded in the Late Cretaceous.
Found in the same rock
410 taxa- Nuculana35 sites
- Striarca34 sites
- Cymbophora30 sites
- Crenella serica28 sites
- Syncyclonema27 sites
- Anomia argentaria26 sites
- Dentalium leve26 sites
- Micrabacia25 sites
- Nucula percrassa25 sites
- Turritella bilira25 sites
- Caestocorbula (Caestocorbula) crassaplica24 sites
- Vertebrata24 sites
- Cubitostrea tecticosta23 sites
- Camptonectes bubonis21 sites
- Euspira rectilabrum21 sites
- Paladmete cancellaria21 sites
- Turritella trilira21 sites
- Vetericardiella21 sites
- Corbula20 sites
- Crassatella vadosa20 sites
- Hamulus onyx20 sites
- Tellinimera20 sites
- Tenea20 sites
- Acteon19 sites
The Paleobiology Database records 41 sites for Perrisonota, 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- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf22
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain18
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain12
Each of the 52 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Perrisonota was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Perrisonota, or no answer at all. This entry cannot say which.
No 3D scan of Perrisonota 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 itMalletiidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1869