Tivela
Tivela is a genus of saltwater clams, marine bivalve molluscs in the subfamily Meretricinae of the family Veneridae, the Venus clams.

Jan Delsing · Public Domain · via Wikipedia/Commons. 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
- MeretricinaePBDB
- Diet
- suspension feederPBDB
- Life habit
- infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 48 million years on record.
The record covers at least 48.07 Mya to 11.7 ka. No occurrence read is dated outside 61.66 Mya to 0 Mya.
175 occurrences of Tivela on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
175 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
51 formations
- Palos Verdes Sand Formation16
- Vaqueros Formation15
- Careaga Sandstone Formation11
- Temblor Formation6
- Gatun Formation6
- Talparo Formation5
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The named rock units Tivela has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 further formations hold fewer occurrences each and are not listed. 42 occurrences have no formation on record, which is common for older literature.
Tivela and its relatives
PleistoceneWhere Tivela and its relatives were recorded in the Pleistocene.
Found in the same rock
2,589 taxa- Callianax biplicata24 sites
- Cryptomya californica23 sites
- Glossaulax reclusiana22 sites
- Lucinisca nuttalli22 sites
- Tresus nuttallii19 sites
- Californiconus californicus17 sites
- Solen sicarius17 sites
- Donax (Donax) gouldii16 sites
- Leukoma staminea16 sites
- Dentalium neohexagonum15 sites
- Macoma nasuta15 sites
- Caesia fossatus14 sites
- Glycymeris septentrionalis14 sites
- Leptopecten latiauratus14 sites
- Ostrea14 sites
- Caesia perpinguis13 sites
- Dallocardia quadragenarium13 sites
- Tellina13 sites
- Thylacodes squamigerus13 sites
- Alia carinata12 sites
- Amiantis callosa12 sites
- Lottia insessa12 sites
- Mytilus californianus12 sites
- Ostrea lurida12 sites
The Paleobiology Database records 133 sites for Tivela, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
73 references- The Vaqueros Formation, Lower Miocene of California. I. Paleontology14
- Revised list of South African late Tertiary and Pleistocene marine Mollusca12
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae).9
- The paleontology of the Pleistocene molluscan fauna of the Newport Bay area, California7
- On the reconciliation of biostratigraphy and strontium isotope stratigraphy of three southern Californian Plio-Pleistocene formations6
- Geology of the Northern Santa Ana Mountains, California5
- Miocene and Pliocene mollusks from Trinidad5
- Geology and paleontology of the Santa Maria District California5
- Stratigraphy and Mollusca of the Eocene of western Oregon5
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California5
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.4
- Stratigraphy and paleontology of the marine Neogene formations of the Coalinga region, California4
Each of the 175 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. 61 further references are not listed. 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 content2
Picture of Tivela
- Source
- Wikipedia/Commons
- Credit
- Jan Delsing
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Tivela trigonella · FMNH:Invertebrate Zoology:185690
The description on this site
- Source
- Wikipedia, “Tivela”
- 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 itMeretricinae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1807