Trachycardium eversum
No picture of Trachycardium eversum 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 Trachycardium eversum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TrachycardiumPBDB
- Diet
- suspension feederPBDB, for Trachycardium
- Life habit
- infaunalPBDB, for Trachycardium
- Motility
- facultatively mobilePBDB, for Trachycardium
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 6.6 million years on record.
Every occurrence read is dated to somewhere between 33.9 Mya and 27.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Trachycardium eversum on record, most of them in the Oligocene. 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- Oligocene100%
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
5 formations
- Mint Spring Formation3
- Forest Hill Formation2
- Byram Formation1
- Flint River Formation1
- Byram Marl Formation1
Loading coastlines…
The named rock units Trachycardium eversum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trachycardium eversum and its relatives
OligoceneWhere Trachycardium eversum and its relatives were recorded in the Oligocene.
Found in the same rock
270 taxa- Nucula vicksburgensis7 sites
- Corbula engonata6 sites
- Ervilia6 sites
- Myrtina vicksburgensis6 sites
- Pitar6 sites
- Agnocardia glebosum5 sites
- Chama (Psilopus) mississippiensis5 sites
- Diplodonta (Diplodonta) eburnea5 sites
- Eburneopecten (Eburneopecten) subminutus5 sites
- Lopha (Lopha) vicksburgensis5 sites
- Nemocardium (Nemocardium) diversum5 sites
- Scapharca (Scapharca) delicatula5 sites
- Serratina aequistriata5 sites
- Tellina5 sites
- Acteon4 sites
- Agaronia mississippiensis4 sites
- Callista4 sites
- Crassinella variablis4 sites
- Crenella fenestra4 sites
- Donax funerata4 sites
- Glycymeris arctata4 sites
- Lirophora (Lirophora) victoria4 sites
- Lucina (Parvilucina) posteocurta4 sites
- Spisula4 sites
The Paleobiology Database records 8 sites for Trachycardium eversum, 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
3 references- Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi6
- A contribution to the invertebrate fauna of the Oligocene beds of Flint, River1
- Observations on the Eocene formations, and descriptions of one hundred and five new fossils from that period, from the vicinity of Vicksburg, Mississippi; with an appendix1
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 content0
No picture of Trachycardium eversum 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 Trachycardium eversum, or no answer at all. This entry cannot say which.
No 3D scan of Trachycardium eversum 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 itTrachycardium through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1848)