Geisonocerina
Geisonocerina is an extinct genus from the carnivorous nautiloid cephalopod order Orthocerida that lived in what would be North America, Europe, and Asia during the Ordovician through Permian from 449 to 290 mya, existing for approximately 159 million years.
No picture of Geisonocerina 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 Geisonocerina, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GeisonoceratidaePBDB
- Diet
- carnivorePBDB, for Cephalopoda
- Life habit
- nektonicPBDB, for Cephalopoda
- Motility
- fast-movingPBDB, for Cephalopoda
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 126 million years on record.
The record covers at least 430.6 Mya to 303.7 Mya. No occurrence read is dated outside 443.1 Mya to 293.52 Mya.
7 occurrences of Geisonocerina 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
7 occurrences- Silurian71%
- Carboniferous21%
- Permian8%
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
- Racine Formation5
- Uyamano Formation · Taishaku Limestone Group1
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The named rock units Geisonocerina 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.
Geisonocerina and its relatives
SilurianWhere Geisonocerina and its relatives were recorded in the Silurian.
Found in the same rock
229 taxa- Bryozoa6 sites
- Michelinoceras6 sites
- <Favositid>5 sites
- <Heliolitid>5 sites
- Brachyprion (Protomegastrophia) profunda5 sites
- Dinobolus5 sites
- Dolerorthis5 sites
- Gastropoda5 sites
- Plectodonta5 sites
- <Alveolitid>4 sites
- <Calymenid>4 sites
- <Halysitid>4 sites
- Actinopteria4 sites
- Amphicoelia leidyi4 sites
- Amphicyrtoceras4 sites
- Anastrophia4 sites
- Caryocrinites4 sites
- Cheirurus niagarensis4 sites
- Crotalocrinites4 sites
- Cypricardinia4 sites
- Cyrtorizoceras4 sites
- Dalejina4 sites
- Dawsonoceras4 sites
- Dicranopeltis4 sites
The Paleobiology Database records 7 sites for Geisonocerina, 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
4 references- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin4
- Late Gzhelian (Carboniferous) to early Asselian (Permian) non-ammonoid cephalopods from the Taishaku Limestone Group, Southwest Japan.1
- Evolution of Silurian Pentamerid Communities in Wisconsin1
- A new blastoid fauna from the lower Namurian of North Kazachstan (U.S.S.R.)1
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 content0
No picture of Geisonocerina 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 Geisonocerina, or no answer at all. This entry cannot say which.
No 3D scan of Geisonocerina 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGeisonoceratidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.