Trochomphalus borkholmiensis

via GBIF · CC BY-NC 4.0 · via GBIF. 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
- TrochomphalusPBDB
- Diet
- suspension feederPBDB, for Euomphaloidea
- Life habit
- epifaunalPBDB, for Euomphaloidea
- Motility
- stationaryPBDB, for Euomphaloidea
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 4.3 million years on record.
The record covers at least 449.5 Mya to 445.2 Mya. No occurrence read is dated outside 449.9 Mya to 443.1 Mya.
2 occurrences of Trochomphalus borkholmiensis 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
2 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
- Korgessaare Formation · Lyckholm Group1
- Ärina Formation1
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The named rock units Trochomphalus borkholmiensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trochomphalus borkholmiensis and its relatives
OrdovicianWhere Trochomphalus borkholmiensis and its relatives were recorded in the Ordovician.
Found in the same rock
43 taxa- Cyclonema rupestre2 sites
- Bucania cornu1 site
- Cataschisma nitida1 site
- Dawsonoceras fenestratum1 site
- Diplotrypa petropolitana1 site
- Drabovia minuta1 site
- Ectomaria nieszkowskii1 site
- Eocryptaenia singularis1 site
- Eriditidae1 site
- Graciloceratidae1 site
- Helicotoma superba1 site
- Holopea ampullacea1 site
- Holopea filosus1 site
- Hormotoma meyendorfi1 site
- Latitaenia aequicrescens1 site
- Loxoplocus esthona1 site
- Mendacella aerinensis1 site
- Oncoceratidae1 site
- Orthoceratidae1 site
- Pachydictya bifurcata1 site
- Palaeomphalus obtusangulus1 site
- Parvihebetoceras wahli1 site
- Piersaloceras gageli1 site
- Pojetaconcha pygmaea1 site
The Paleobiology Database records 2 sites for Trochomphalus borkholmiensis, 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 2 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Trochomphalus borkholmiensis
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTrochomphalus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Koken 1897)