Hamulus squamosus
No picture of Hamulus squamosus 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 Hamulus squamosus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HamulusPBDB
- Diet
- suspension feederPBDB, for Serpulimorpha
- Life habit
- epifaunalPBDB, for Serpulimorpha
- Motility
- stationary, epibiontPBDB, for Serpulimorpha
- Vision
- limitedPBDB, for Polychaeta
- Environment
- marine,brackishPBDB, for Serpulimorpha
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
53 occurrences of Hamulus squamosus 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
53 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
13 formations
- Severn Formation10
- Corsicana Marl Formation10
- Chiwapa Formation8
- Peedee Formation8
- Prairie Bluff Formation5
- Mooreville Chalk Formation · Selma Group3
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The named rock units Hamulus squamosus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hamulus squamosus and its relatives
Late CretaceousWhere Hamulus squamosus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
620 taxa- Anomia argentaria42 sites
- Hamulus onyx40 sites
- Syncyclonema37 sites
- Crenella serica36 sites
- Exogyra (Exogyra) costata30 sites
- Veniella conradi30 sites
- Cymbophora29 sites
- Caestocorbula (Caestocorbula) crassaplica28 sites
- Crassatella vadosa28 sites
- Bryozoa27 sites
- Cubitostrea tecticosta27 sites
- Nuculana26 sites
- Serpula26 sites
- Camptonectes bubonis25 sites
- Gabbigonia eufaulensis25 sites
- Cyprimeria24 sites
- Turritella trilira23 sites
- Granocardium22 sites
- Cliona21 sites
- Pseudolimea reticulata21 sites
- Trachycardium eufaulensis21 sites
- Vertebrata21 sites
- Turritella19 sites
- Nemodon eufaulensis18 sites
The Paleobiology Database records 53 sites for Hamulus squamosus, 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- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf29
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain11
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain4
- Cretaceous deposits of the eastern gulf region and species of Exogyra from the eastern gulf region and the Carolinas3
- Local invertebrate assemblages in the Upper Cretaceous Marshallton Formation along the valley of Oldmans Creek in southern New Jersey2
- First record of a velociraptorine theropod (Tetanurae, Dromaeosauridae) from the eastern Gulf Coastal United States1
- Paleoecology of the Delaware Valley region. Part II: Cretaceous to Quartenary1
- The fauna of the Ripley formation on Coon creek, Tennessee1
- The Cretaceous formations1
Each of the 53 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 content0
No picture of Hamulus squamosus 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 Hamulus squamosus, or no answer at all. This entry cannot say which.
No 3D scan of Hamulus squamosus 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 itHamulus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gabb 1859