Hormotoma gracilis angustatus
No picture of Hormotoma gracilis angustatus 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 Hormotoma gracilis angustatus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Hormotoma gracilisPBDB
- Diet
- herbivorePBDB, for Hormotoma
- Life habit
- epifaunalPBDB, for Hormotoma
- Motility
- actively mobilePBDB, for Hormotoma
- Vision
- limitedPBDB, for Murchisoniina
- Environment
- coastal,marinePBDB, for Murchisoniina
Time the record covers
At least 2.8 million years on record.
The record covers at least 453.8 Mya to 451 Mya. No occurrence read is dated outside 457.3 Mya to 449.6 Mya.
16 occurrences of Hormotoma gracilis angustatus 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
16 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
11 formations
- Dunleith Formation · Galena Group5
- Glenwood Formation2
- St. Peter Sandstone Formation1
- Cummingsville Formation1
- Prosser Limestone Formation1
- Stewartville Formation1
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The named rock units Hormotoma gracilis angustatus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hormotoma gracilis angustatus and its relatives
OrdovicianWhere Hormotoma gracilis angustatus and its relatives were recorded in the Ordovician.
Found in the same rock
180 taxa- Ambonychiopsis14 sites
- Cyrtodonta14 sites
- Trochonema umbilicata14 sites
- Clathrospira subconica13 sites
- Liospira angustata13 sites
- Bucania sublata12 sites
- Alaskadiscus subacutus11 sites
- Cleionychia11 sites
- Cymatonota11 sites
- Cyrtodontula11 sites
- Eunema centralis11 sites
- Lophospira perangulata11 sites
- Sphenolium11 sites
- Tetranota obsoleta11 sites
- Vanuxemia11 sites
- Ectomaria prisca10 sites
- Modiolopsis10 sites
- Orthodesma10 sites
- Tetranota sexcarinata10 sites
- Bucania elliptica9 sites
- Cuneamya9 sites
- Cyclonema textilis9 sites
- Cyrtostropha salteri9 sites
- Eroicaspira bellicincta9 sites
The Paleobiology Database records 16 sites for Hormotoma gracilis angustatus, 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- Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota14
- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)1
- Upper Ordovician faunas of Ontario and Quebec1
Each of the 16 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 Hormotoma gracilis angustatus 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 Hormotoma gracilis angustatus, or no answer at all. This entry cannot say which.
No 3D scan of Hormotoma gracilis angustatus was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itHormotoma gracilis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)