Hedecardium

Hedecardium

Uncredited · CC BY 4.0 · 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
OrthocardiinaePBDB
Diet
suspension feederPBDB, for Cardiidae
Life habit
infaunalPBDB, for Cardiidae
Motility
facultatively mobilePBDB, for Cardiidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 40 million years on record.

The record covers at least 56 Mya to 15.1 Mya. No occurrence read is dated outside 61.66 Mya to 11.63 Mya.

Paleocene — about 3 of 73 occurrencesPaleoceneEocene — about 26 of 73 occurrencesEoceneOligocene — about 19 of 73 occurrencesOligoceneMiocene — about 25 of 73 occurrencesMiocene63–61 Mya — about 0.3 occurrences61–59 Mya — about 0.6 occurrences59–57 Mya — about 1 occurrence57–56 Mya — about 1.0 occurrences49–47 Mya — about 0.4 occurrences47–45 Mya — about 0.7 occurrences45–44 Mya — about 0.7 occurrences44–42 Mya — about 1 occurrence42–40 Mya — about 5 occurrences40–38 Mya — about 9 occurrences38–37 Mya — about 5 occurrences37–35 Mya — about 2 occurrences35–33 Mya — about 2 occurrences33–31 Mya — about 1 occurrence31–30 Mya — about 1 occurrence30–28 Mya — about 1 occurrence28–26 Mya — about 4 occurrences26–25 Mya — about 6 occurrences25–23 Mya — about 6 occurrences23–21 Mya — about 4 occurrences21–19 Mya — about 5 occurrences19–18 Mya — about 6 occurrences18–16 Mya — about 6 occurrences16–14 Mya — about 1 occurrence14–12 Mya — about 1 occurrence12–11 Mya — about 0.3 occurrences56 Mya15.1 Mya63 Mya11 Mya

73 occurrences of Hedecardium on record, most of them in the Eocene. 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

73 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

29 formations

Tapui Glauconitic Sandstone — 44.88°S, 170.77°ETapui Glauconitic Sandstone — 44.97°S, 170.58°ETapui Glauconitic Sandstone — 45.00°S, 170.73°ETapui Glauconitic Sandstone — 44.92°S, 170.58°ETapui Glauconitic Sandstone — 44.84°S, 170.52°EIhungia — 40.03°S, 176.37°EIhungia — 40.13°S, 176.55°EIhungia — 40.27°S, 176.22°EIhungia — 40.30°S, 176.62°EIhungia — 40.30°S, 176.28°ENaseby Greensand — 45.02°S, 170.12°EWaihao — 44.16°S, 171.10°EWaihao — 44.20°S, 171.05°ERifle Butts — 45.04°S, 170.94°ERifle Butts — 45.12°S, 170.93°ERifle Butts — 45.08°S, 170.95°EMangaotuku Siltstone — 37.67°S, 175.15°EOtaio Gorge Sandstone — 44.38°S, 170.99°EOtaio Gorge Sandstone — 44.52°S, 170.93°ELower Sandstone — 34.87°N, 133.03°EKauru — 45.06°S, 170.73°EKauru — 44.79°S, 170.51°ETokama Siltstone — 44.24°S, 170.69°ETokama Siltstone — 43.98°S, 171.11°EOtekaike Limestone — 45.79°S, 170.51°EOtekaike Limestone — 44.84°S, 170.52°EMonte Leon Fm — 50.37°S, 69.05°WMonte Leon Fm — 50.23°S, 68.92°WJan Juc — 38.32°S, 144.32°EGran Bajo del Gualicho — 40.38°S, 65.25°WTorehina — 36.67°S, 175.44°ETorehina — 36.65°S, 175.53°EPukemiro Sandstone — 37.67°S, 175.15°ESan Julian — 47.13°S, 66.05°WBlanche Point — 35.28°S, 138.48°EPallinup Siltstone — 35.02°S, 117.89°EBroken River — 44.52°S, 170.93°EOtaio Limonitic Greensand — 44.52°S, 170.93°EChenque — 48.30°S, 67.72°WSan Julián — 47.13°S, 66.05°WRio Foyel — 41.73°S, 71.42°W

Loading coastlines…

The named rock units Hedecardium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 further formations hold fewer occurrences each and are not listed. 7 occurrences have no formation on record, which is common for older literature.

Hedecardium and its relatives

Eocene

Where Hedecardium and its relatives were recorded in the Eocene.

Found in the same rock

492 taxa

The Paleobiology Database records 28 sites for Hedecardium, 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

22 references

Each of the 73 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. 10 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 Hedecardium

Credit
nobody named on the record
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Hedecardium 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 itOrthocardiinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Marwick 1944)