Strophocardia megastropha

via iDigBio · 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
- StrophocardiaPBDB
- Diet
- suspension feederPBDB, for Strophocardia
- Life habit
- semi-infaunalPBDB, for Strophocardia
- Motility
- facultatively mobilePBDB, for Strophocardia
- Vision
- blindPBDB, for Crassatelloidea
- Environment
- marinePBDB, for Crassatelloidea
Time the record covers
At least 3.4 million years on record.
The record covers at least 3.6 Mya to 129 ka. No occurrence read is dated outside 5.333 Mya to 11.7 ka.
8 occurrences of Strophocardia megastropha on record, most of them in the Pliocene. 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
8 occurrences- Pliocene63%
- Pleistocene38%
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
3 formations
- Imperial Formation4
- Onzole Formation · Daule Group1
- Mulege Formation1
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The named rock units Strophocardia megastropha has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Strophocardia megastropha and its relatives
PlioceneWhere Strophocardia megastropha and its relatives were recorded in the Pliocene.
Found in the same rock
137 taxa- Anodontia edentuloides4 sites
- Arca4 sites
- Argopecten4 sites
- Codakia distinguenda4 sites
- Dosinia semiobliterata4 sites
- Euvola keepi4 sites
- Glycymeris (Glycymeris) gigantea4 sites
- Lucinisca nuttalli4 sites
- Pycnodonte heermanni4 sites
- Anadara reinharti3 sites
- Arca pacifica3 sites
- Arcinella californica3 sites
- Barbatia3 sites
- Kalolophus antillarum3 sites
- Miltha xantusi3 sites
- Spondylus3 sites
- Agaronia2 sites
- Atys2 sites
- Conus2 sites
- Dendostrea vespertina2 sites
- Divalinga eburnea2 sites
- Naticidae2 sites
- Ostrea angelica2 sites
- Pinna latrania2 sites
The Paleobiology Database records 5 sites for Strophocardia megastropha, 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- Pliocene Invertebrates From the Travertine Point Outcrop of the Imperial Formation, Imperial County, California4
- Taphonomic and paleoecological analyses (mollusks and fishes) of the Súa Member condensed shelled, upper Onzole Formation (Early Pliocene, Ecuador)1
- Upper Pleistocene Rocky Shores and Intertidal Biotas at Playa La Palmita (Baja California Sur,Mexico)1
- Results of the Puritan-American Museum of Natural History expedition to western Mexico. Part 7: Corals and coral reefs in the Gulf of California1
- Marine Pleistocene mollusks from the Galapagos Islands1
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

Picture of Strophocardia megastropha
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Strophocardia megastropha 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 itStrophocardia through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1825)