Stewartia

Stewartia floridana is a bivalve of the family Lucinidae that is chemosymbiotic with sulfur-oxidizing bacteria.

Stewartia

Conrad, 1833 · 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
LucininaePBDB
Diet
chemosymbioticPBDB, for Lucinidae
Life habit
deep infaunalPBDB, for Lucinidae
Motility
facultatively mobilePBDB, for Lucinidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 23 million years on record.

The record covers at least 23.04 Mya to 11.7 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 94 occurrencesPaleocene — about 0 of 94 occurrencesPaleoceneEocene — about 1 of 94 occurrencesEoceneOligocene — about 7 of 94 occurrencesOligoceneMiocene — about 43 of 94 occurrencesMiocenePliocene — about 14 of 94 occurrencesPleistocene — about 27 of 94 occurrences67–65 Mya — about 0.0 occurrences65–63 Mya — about 0.1 occurrences63–61 Mya — about 0.1 occurrences61–58 Mya — about 0.1 occurrences58–56 Mya — about 0.1 occurrences56–54 Mya — about 0.1 occurrences54–52 Mya — about 0.1 occurrences52–49 Mya — about 0.1 occurrences49–47 Mya — about 0.1 occurrences47–45 Mya — about 0.1 occurrences45–43 Mya — about 0.1 occurrences43–40 Mya — about 0.1 occurrences40–38 Mya — about 0.1 occurrences38–36 Mya — about 0.1 occurrences36–34 Mya — about 0.2 occurrences34–31 Mya — about 0.9 occurrences31–29 Mya — about 0.9 occurrences29–27 Mya — about 1 occurrence27–25 Mya — about 2 occurrences25–22 Mya — about 2 occurrences22–20 Mya — about 1 occurrence20–18 Mya — about 2 occurrences18–16 Mya — about 3 occurrences16–13 Mya — about 9 occurrences13–11 Mya — about 17 occurrences11–9.0 Mya — about 4 occurrences9.0–6.7 Mya — about 4 occurrences6.7–4.5 Mya — about 7 occurrences4.5–2.2 Mya — about 14 occurrences2.2–0 Mya — about 25 occurrences23.04 Mya11.7 ka67 Mya0 Mya

94 occurrences of Stewartia on record, most of them in the Miocene. 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

94 occurrences

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

19 formations

Yorktown — 37.22°N, 76.93°WYorktown — 37.23°N, 76.96°WYorktown — 37.17°N, 76.77°WYorktown — 34.90°N, 78.05°WYorktown — 37.21°N, 76.69°WYorktown — 37.15°N, 76.74°WYorktown — 37.06°N, 76.63°WChoptank — 38.39°N, 76.57°WChoptank — 38.45°N, 76.46°WChoptank — 38.17°N, 76.80°WChoptank — 38.41°N, 76.48°WChoptank — 38.38°N, 76.38°WCalvert — 38.54°N, 76.73°WCalvert — 39.20°N, 75.60°WCalvert — 38.67°N, 76.53°WCalvert — 38.63°N, 76.51°WWaccamaw — 34.21°N, 81.31°WWaccamaw — 34.56°N, 78.49°WWaccamaw — 34.33°N, 78.20°WWaccamaw — 33.97°N, 78.39°WWaccamaw — 34.17°N, 78.60°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 26.76°N, 81.46°WCaloosahatchee — 27.77°N, 82.68°WSt Marys — 38.16°N, 76.45°WSt Marys — 38.17°N, 76.44°WSt Marys — 38.26°N, 76.42°WSt Marys — 38.27°N, 76.15°WAnastasia — 26.65°N, 80.45°WAnastasia — 26.93°N, 80.09°WFort Thompson — 26.79°N, 81.30°WFort Thompson — 26.96°N, 81.17°WFort Thompson — 26.76°N, 81.44°WBelgrade — 34.82°N, 77.19°WBelgrade — 34.89°N, 77.23°WKirkwood — 39.15°N, 74.69°WKirkwood — 39.00°N, 75.12°WEastover — 37.17°N, 76.77°WSeto Porcelain Clay — 35.00°N, 137.00°EAkima — 36.00°N, 139.00°EBermont — 26.89°N, 82.01°WJames City — 35.28°N, 76.65°WGoose Creek — 33.33°N, 80.15°WChowan River — 36.05°N, 76.73°WSaint Marys — 38.17°N, 76.44°WSt Mary's — 38.36°N, 76.39°W

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The named rock units Stewartia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 occurrences have no formation on record, which is common for older literature.

Stewartia and its relatives

Miocene

Where Stewartia and its relatives were recorded in the Miocene.

Found in the same rock

1,329 taxa

The Paleobiology Database records 48 sites for Stewartia, 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

29 references

Each of the 94 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. 17 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 Stewartia

Credit
Conrad, 1833
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

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 itLucininae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Olsson 1953