Helicotoma brocki
No picture of Helicotoma brocki 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 Helicotoma brocki, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HelicotomaPBDB
- Diet
- suspension feederPBDB, for Helicotoma
- Life habit
- epifaunalPBDB, for Helicotoma
- Motility
- stationaryPBDB, for Helicotoma
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 4.1 million years on record.
Every occurrence read is dated to somewhere between 449.6 Mya and 445.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Helicotoma brocki on record, most of them in the Ordovician. 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
3 occurrences- Ordovician100%
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 Helicotoma brocki has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Helicotoma brocki and its relatives
OrdovicianWhere Helicotoma brocki and its relatives were recorded in the Ordovician.
Found in the same rock
62 taxa- Hormotoma gracilis3 sites
- Archinacella kagawongensis2 sites
- Ceraurus2 sites
- Conularia2 sites
- Cornulites2 sites
- Cyclonema minuta2 sites
- Cyrtodonta2 sites
- Dalmanella2 sites
- Hebertella alveata2 sites
- Hebertella occidentalis2 sites
- Helicelasma rusticum2 sites
- Lichenocrinus2 sites
- Liospira micula2 sites
- Lophospira2 sites
- Megamyonia breviuscula2 sites
- Modiolopsis2 sites
- Monticulipora2 sites
- Platystrophia acutilirata2 sites
- Platystrophia clarksvillensis2 sites
- Rafinesquina alternata2 sites
- Strophomena parvula2 sites
- Tetraphalerella neglecta2 sites
- Vinlandostrophia moritura2 sites
- Ambonychia1 site
The Paleobiology Database records 3 sites for Helicotoma brocki, 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
2 referencesEach of the 3 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 Helicotoma brocki 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 Helicotoma brocki, or no answer at all. This entry cannot say which.
No 3D scan of Helicotoma brocki 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 itHelicotoma through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Foerste 1912