Stenosiphon
Smithsonian Institution · CC0 · via Smithsonian. 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
- ProterocameroceratidaePBDB
- Diet
- carnivorePBDB, for Endocerida
- Life habit
- nektobenthicPBDB, for Endocerida
- Motility
- actively mobilePBDB, for Endocerida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 30 million years on record.
Every occurrence read is dated to somewhere between 486.85 Mya and 457.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Stenosiphon 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
- Croisaphuill Formation · Durness Group2
- Rockdale Run Formation1
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The named rock units Stenosiphon has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Stenosiphon and its relatives
OrdovicianWhere Stenosiphon and its relatives were recorded in the Ordovician.
Found in the same rock
21 taxa- Proterocameroceras durinum2 sites
- Protocycloceras2 sites
- Allopiloceras bealachense1 site
- Archaeoscyphia1 site
- Bisonoceras hornei1 site
- Buttsoceras1 site
- Cassinoceras wortheni1 site
- Ceratopea1 site
- Clitendoceras1 site
- Coreanoceras1 site
- Diparelasma1 site
- Doloresella1 site
- Escharendoceras1 site
- Lobosiphon1 site
- Mcqueenoceras1 site
- Mysticoceras1 site
- Platysiphon1 site
- Retroclitendoceras1 site
- Rhabdiferoceras pertinens1 site
- Rioceras1 site
- Xenelasma1 site
The Paleobiology Database records 3 sites for Stenosiphon, 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- The Lower Ordovician cephalopod faunas of the Durness Group, North-West Scotland2
- Beekmantown Group (Lower Ordovician) of Maryland1
Each 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Stenosiphon
- Source
- Smithsonian
- Credit
- Smithsonian Institution
- Licence
- CC0 — this site’s default, not the record’s
- Commercial use
- the licence allows 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 itProterocameroceratidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Flower 1956