Heteroterma trochoidea

via iDigBio · via iDigBio. 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
- HeterotermaPBDB
- Diet
- carnivorePBDB, for Neogastropoda
- Life habit
- epifaunalPBDB, for Neogastropoda
- Motility
- actively mobilePBDB, for Neogastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 2.4 million years on record.
The record covers at least 61.66 Mya to 59.24 Mya. No occurrence read is dated outside 66 Mya to 56 Mya.
7 occurrences of Heteroterma trochoidea on record, most of them in the Paleocene. 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
7 occurrences- Paleocene100%
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
4 formations
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The named rock units Heteroterma trochoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Heteroterma trochoidea and its relatives
PaleoceneWhere Heteroterma trochoidea and its relatives were recorded in the Paleocene.
Found in the same rock
129 taxa- Cucullaea mathewsonii4 sites
- Retipirula crassitesta4 sites
- Dentalium cooperi3 sites
- Tellina (Saulella) undulifera3 sites
- Turritella infragranulata pachecoensis3 sites
- Acila (Truncacila) decisa2 sites
- Brachysphingus gibbosus2 sites
- Brachysphingus sinuatus2 sites
- Crassatella2 sites
- Glycymerita major2 sites
- Heteroterma acrita2 sites
- Lacunaria striata2 sites
- Meretrix stantoni2 sites
- Mesalia martinezensis2 sites
- Miltha turneri2 sites
- Nuculana (Saccella) gabbii2 sites
- Palaeopsammia zitteli2 sites
- Polinices hornii2 sites
- Polinices susanaensis2 sites
- Pseudoperissolax tricarnatus2 sites
- Pyropsis fantozzii2 sites
- Ringicula (Ringicula) pinguis2 sites
- Surculites mathewsonii2 sites
- Sycum mucronatum2 sites
The Paleobiology Database records 7 sites for Heteroterma trochoidea, 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
5 references- New Late Cretaceous and Early Tertiary Perissityidae (Gastropoda) from the Pacific Slope of North America3
- Age, Correlation and Possible Tethyan Affinities of Mollusks from the Lodo Formation of Fresno County, California1
- Geology of the coast ranges immediately north of the San Francisco Bay region, California1
- A contribution to the paleontology of the Martinez Eocene of California1
- Stratigraphic and faunal relations of the Martinez to the Chico and Tejon of Southern California1
Each of the 7 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 content1

Picture of Heteroterma trochoidea
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Heteroterma trochoidea 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 itHeteroterma through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1869)