Sphenolium
No picture of Sphenolium was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sphenolium, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PholadomyoideaPBDB
- Diet
- suspension feederPBDB, for Pholadomyida
- Life habit
- infaunalPBDB, for Pholadomyida
- Motility
- facultatively mobilePBDB, for Pholadomyida
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 8.6 million years on record.
The record covers at least 453.8 Mya to 445.2 Mya. No occurrence read is dated outside 457.3 Mya to 443.1 Mya.
27 occurrences of Sphenolium 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
27 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
19 formations
- Dunleith Formation · Galena Group6
- Fairview Formation2
- Platteville Formation2
- Prosser Limestone Formation2
- Bellevue Formation1
- Corryville Formation1
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The named rock units Sphenolium has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Sphenolium and its relatives
OrdovicianWhere Sphenolium and its relatives were recorded in the Ordovician.
Found in the same rock
466 taxa- Cymatonota22 sites
- Ctenodonta21 sites
- Cyrtodonta21 sites
- Cyrtodontula20 sites
- Cleionychia19 sites
- Ambonychiopsis18 sites
- Modiolopsis18 sites
- Vanuxemia18 sites
- Hormotoma gracilis17 sites
- Lophospira perangulata17 sites
- Modiolodon17 sites
- Nuculites17 sites
- Orthodesma17 sites
- Bucania sublata16 sites
- Raphistoma16 sites
- Rhytimya16 sites
- Tetranota obsoleta16 sites
- Alaskadiscus subacutus15 sites
- Eunema centralis15 sites
- Lyrodesma15 sites
- Tetranota sexcarinata15 sites
- Clathrospira subconica14 sites
- Scenella compressa14 sites
- Cuneamya13 sites
The Paleobiology Database records 27 sites for Sphenolium, 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- Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota16
- The fossil fauna of the Ordovician in the Cincinnati Region7
- Ordovician pelecypods from the Upper Mississippi Valley2
- Uppermost Ordovician bivalves from the Prague Basin (Hirnantian, Perunica, Bohemia)1
- The fauna of the residuary Auburn chert of Lincoln County, Missouri1
Each of the 27 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 Sphenolium was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sphenolium, or no answer at all. This entry cannot say which.
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 itPholadomyoidea through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller 1889