Isognomon (Isognomon) clarki
No picture of Isognomon (Isognomon) clarki 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 Isognomon (Isognomon) clarki, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Isognomon (Isognomon)PBDB
- Diet
- suspension feederPBDB, for Isognomon
- Life habit
- epifaunalPBDB, for Isognomon
- Motility
- stationary, attachedPBDB, for Isognomon
- Vision
- blindPBDB, for Bivalvia
- Environment
- marine,brackishPBDB, for Ostreida
Time the record covers
At least 3.8 million years on record.
The record covers at least 37.71 Mya to 33.9 Mya. No occurrence read is dated outside 48.07 Mya to 27.3 Mya.
8 occurrences of Isognomon (Isognomon) clarki on record, most of them in the Eocene. 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
8 occurrencesThese 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
4 formations
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The named rock units Isognomon (Isognomon) clarki 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.
Isognomon (Isognomon) clarki and its relatives
EoceneWhere Isognomon (Isognomon) clarki and its relatives were recorded in the Eocene.
Found in the same rock
126 taxa- Calyptraea diegoana3 sites
- Microcallista (Costacallista) conradiana3 sites
- Brachidontes (Brachidontes) dichotomus2 sites
- Chama grunskyi2 sites
- Chlamys calkinsi2 sites
- Cypraeogemmula warnerae2 sites
- Dendrophyllia tejonensis2 sites
- Erginus vaderensis2 sites
- Spondylus carlosensis2 sites
- Venericardia (Pacificor) clarki clarki2 sites
- Acmaea ocitatia1 site
- Acmaea simplex1 site
- Acrilla (Ferminoscala) dickersoni1 site
- Acteon parvum1 site
- Acutostrea griesensis1 site
- Acutostrea idriaensis1 site
- Alvania lettana1 site
- Anomia mcgoniglensis1 site
- Aphrocallistes1 site
- Aporolepas1 site
- Balanophyllia variabilis1 site
- Barbatia1 site
- Barbatia (Acar) reinharti1 site
- Barbatia landesi1 site
The Paleobiology Database records 8 sites for Isognomon (Isognomon) clarki, 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- Macropaleontology of Eocene marine rocks, upper Sespe Creek area, Ventura County, southern California4
- New Species of Middle Eocene Gastropods from the Northern Doty Hills, Southwestern Washington1
- Patellogastropods (Mollusca) from the Eocene Tejon Formation of southern California1
- New stratigraphic and geographic occurrences of Isognomon (Mollusca: Bivalvia) from the Eocene of California and Oregon1
- The Gries Ranch Fauna (Oligocene) of Western Washington1
Each of the 8 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
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Isognomon radiatus · FMNH:Invertebrate Zoology:183228
No picture of Isognomon (Isognomon) clarki 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 Isognomon (Isognomon) clarki, or no answer at all. This entry cannot say which.
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 itIsognomon (Isognomon) through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Effinger 1938)