Eontia ponderosa

Say, 1822 · CC0 · via Wikidata/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
- Noetia (Eontia)PBDB
- Diet
- suspension feederPBDB, for Noetia (Eontia)
- Life habit
- semi-infaunalPBDB, for Noetia (Eontia)
- Motility
- facultatively mobilePBDB, for Noetia (Eontia)
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 2.5 million years on record.
The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
43 occurrences of Eontia ponderosa 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
43 occurrences- Pliocene4%
- Pleistocene89%
- Holocene7%
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
11 formations
- Pamlico Formation15
- Acredale Formation4
- Fort Thompson Formation3
- Talbot Formation2
- Horry Clay Formation2
- New Orleans Barrier Trend Formation1
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The named rock units Eontia ponderosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Eontia ponderosa and its relatives
PleistoceneWhere Eontia ponderosa and its relatives were recorded in the Pleistocene.
Found in the same rock
668 taxa- Anadara (Larkinia) transversa15 sites
- Crepidula fornicata14 sites
- Mercenaria campechiensis14 sites
- Anomia simplex13 sites
- Mulinia lateralis13 sites
- Neverita duplicatus13 sites
- Crassostrea virginica12 sites
- Crepidula plana12 sites
- Oliva (Ispidula) sayana12 sites
- Nucula (Nucula) proxima11 sites
- Chione cancellata10 sites
- Crassinella lunulata10 sites
- Dinocardium robustum10 sites
- Neoterebra dislocata10 sites
- Astyris lunata9 sites
- Caryocorbula contracta9 sites
- Eupleura caudata9 sites
- Macrocallista (Macrocallista) nimbosa9 sites
- Olivella mutica9 sites
- Rangia (Rangia) cuneata9 sites
- Ensis directus8 sites
- Nuculana acuta8 sites
- Parvilucina multistriata8 sites
- Pleuromeris tridentata8 sites
The Paleobiology Database records 20 sites for Eontia ponderosa, 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
16 references- Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America20
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions3
- The Pleistocene molluscan fauna from Leisley Shell Pit 1, Hillsborough County, Florida3
- The fauna and paleoecology of the Late Pleistocene marine sediments of southeastern Virginia3
- Pleistocene (Rancholabrean) vertebrate faunas from coastal Georgia2
- Neogene Biostratigraphy of the Charlotte Harbor Area in Southwestern Florida2
- Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia1
- Mollusca: Fort Thompson Formation (Late Pleistocene)1
- Classic exposures of the Anastasia Formation in Martin and Palm Beach Counties, Florida1
- Stratigraphy of newly exposed Quaternary sediments, eastern Orleans Parish, Louisiana1
- Stratigraphy of newly exposed Quaternary seduments, eastern Orleans Parish, Louisiana1
- Stratigraphy, structure, absolute age, and paleontology of the upper Pleistocene deposits at Sankaty Head, Nantucket Island, Massachusetts1
Each of the 43 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. 4 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 content1

Picture of Eontia ponderosa
- Source
- Wikidata/Commons
- Credit
- Say, 1822
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Eontia ponderosa was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itNoetia (Eontia) through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Say 1822)