Gonioceras anceps

via iDigBio · CC0 · 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
- GoniocerasPBDB
- Diet
- carnivorePBDB, for Actinocerida
- Life habit
- nektobenthicPBDB, for Actinocerida
- Motility
- actively mobilePBDB, for Actinocerida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 8.7 million years on record.
Every occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Gonioceras anceps 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
12 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
6 formations
- Chaumont Formation · Black River Group2
- Ridley Limestone Formation1
- Platteville Formation1
- Grand Detour Formation1
- Nachusa Formation1
- Quimbys Mill Formation1
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The named rock units Gonioceras anceps has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Gonioceras anceps and its relatives
OrdovicianWhere Gonioceras anceps and its relatives were recorded in the Ordovician.
Found in the same rock
115 taxa- Michelinoceras9 sites
- Helopora6 sites
- Leperditia6 sites
- Nicholsonella6 sites
- Tetradium6 sites
- Cyclospira5 sites
- Dekayella praenuntia5 sites
- Desmorthis nevadensis5 sites
- Dictyonella reticulata5 sites
- Doleroides5 sites
- Glyptorthis insculpta5 sites
- Hemiphragmus imperfectus5 sites
- Hesperorthis5 sites
- Idiostrophis sp.5 sites
- Liospira vitruvia5 sites
- Maclurites5 sites
- Mimella5 sites
- Oepikina minnesotensis5 sites
- Rostricella plena5 sites
- Solenopora5 sites
- Strophomena5 sites
- Strophomena planumbona5 sites
- Actinoceras4 sites
- Allumettoceras4 sites
The Paleobiology Database records 12 sites for Gonioceras anceps, 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- Zonation of the Middle and Upper Ordovician strata in northwestern Georgia5
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area4
- The Ordovician Development of the Actinoceratida, with notes on Actinoceroid Morphology and Ordovician Stratigraphy2
- Pre-Chattanooga stratigraphy in Central Tennessee1
Each of the 12 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 Gonioceras anceps
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Gonioceras anceps was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itGonioceras through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hall 1847