Antigona (Ventricola) undosa

Not Antigona (Ventricola) undosa. This is Antigona undosa Clark, 1918, a relative — both are Veneridae.
via GBIF · CC BY 4.0 · via GBIF. 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
- Antigona (Ventricola)PBDB
- Diet
- suspension feederPBDB, for Veneridae
- Life habit
- infaunalPBDB, for Veneridae
- Motility
- facultatively mobilePBDB, for Veneridae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 6.6 million years on record.
The record covers at least 33.9 Mya to 27.3 Mya. No occurrence read is dated outside 37.71 Mya to 23.04 Mya.
23 occurrences of Antigona (Ventricola) undosa on record. 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
23 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
2 formations
- San Emigdio Formation · San Lorenzo Group15
- Pleito Formation · San Lorenzo Group7
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The named rock units Antigona (Ventricola) undosa 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.
Found in the same rock
51 taxa- Mactromeris ramonensis19 sites
- Natica recluziana15 sites
- Yoldia (Portlandia) cooperii14 sites
- Siphonalia (Kelletia) merriami13 sites
- Amiantis mathewsoni12 sites
- Solena (Plectosolen) conradi10 sites
- Bullia (Buccinanops) clarki9 sites
- Cardium9 sites
- Mytilus (Mytilus) arnoldi8 sites
- Pseudocardium packardi8 sites
- Acila (Truncacila) shumardi6 sites
- Dentalium6 sites
- Olequahia lincolnensis6 sites
- Turritella variata lorenzana6 sites
- Bruclarkia gravida5 sites
- Crepidula praerupta5 sites
- Dosinia (Dosinia) whitneyi5 sites
- Fusinus (Priscofusus) hecoxi5 sites
- Hemifusus lincolnensis5 sites
- Macrocallista pittsburgensis5 sites
- Molopophorus dalli5 sites
- Crenomytilus mathewsoni4 sites
- Here excavata4 sites
- Arca3 sites
The Paleobiology Database records 22 sites for Antigona (Ventricola) undosa, 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
2 references- The San Lorenzo Group of the San Emigdio region, California22
- The San Lorenzo series of Middle California. a stratigraphic and paleontologic study of the San Lorenzo Oligocene series of the general region of Mount Diablo, California1
Each of the 23 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Antigona undosa Clark, 1918
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- 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 itAntigona (Ventricola) through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Clark 1918