Stegerhynchus pseudobidentatus

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
- StegerhynchusPBDB
- Diet
- suspension feederPBDB, for Stegerhynchus
- Life habit
- epifaunalPBDB, for Stegerhynchus
- Motility
- stationary, attached, epibiontPBDB, for Stegerhynchus
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 1.1 million years on record.
Every occurrence read is dated to somewhere between 422.7 Mya and 421.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Stegerhynchus pseudobidentatus on record, most of them in the Silurian. 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
4 occurrences- Silurian100%
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
1 formation
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The named rock units Stegerhynchus pseudobidentatus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Stegerhynchus pseudobidentatus and its relatives
SilurianWhere Stegerhynchus pseudobidentatus and its relatives were recorded in the Silurian.
Found in the same rock
17 taxa- Atrypa reticularis1 site
- Atrypoidea (Atrypoidea) prunum1 site
- Craniops1 site
- Dalejina hybrida1 site
- Dayia navicula1 site
- Delthyris1 site
- Delthyris (Delthyris) elevata1 site
- Homoeospira1 site
- Homoeospira baylei1 site
- Leptaena1 site
- Levenea canaliculata1 site
- Microsphaeridiorhynchus nucula1 site
- Morinorhynchus orbignyi1 site
- Protochonetes piltenensis1 site
- Salopina conservatrix1 site
- Shaleria1 site
- Stegerhynchus diodontus1 site
The Paleobiology Database records 4 sites for Stegerhynchus pseudobidentatus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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 references- New Species of Silurian Rhynchonelloid Species of Estonia3
- Communities and Biozones in the Baltic Silurian1
Each of the 4 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 Stegerhynchus pseudobidentatus
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan of Stegerhynchus pseudobidentatus 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 itStegerhynchus through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Rybnikova 1967)