Hartwellia

No picture of Hartwellia 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 Hartwellia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ArcticidaePBDB
Diet
suspension feederPBDB, for Venerida
Life habit
infaunalPBDB, for Venerida
Motility
facultatively mobilePBDB, for Venerida
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 23 million years on record.

The record covers at least 145.06 Mya to 121.4 Mya. No occurrence read is dated outside 149.2 Mya to 113.2 Mya.

Late Jurassic — about 53 of 55 occurrencesLate JurassicEarly Cretaceous — about 2 of 55 occurrencesEarly Cretaceous150–149 Mya — about 5 occurrences149–147 Mya — about 11 occurrences147–146 Mya — about 11 occurrences146–145 Mya — about 11 occurrences145–144 Mya — about 11 occurrences144–142 Mya — about 5 occurrences137–136 Mya — about 0.2 occurrences136–135 Mya — about 0.3 occurrences135–134 Mya — about 0.3 occurrences134–132 Mya — about 0.2 occurrences122–121 Mya — about 0.0 occurrences121–120 Mya — about 0.2 occurrences120–119 Mya — about 0.2 occurrences119–117 Mya — about 0.2 occurrences117–116 Mya — about 0.2 occurrences116–115 Mya — about 0.2 occurrences115–114 Mya — about 0.2 occurrences114–112 Mya — about 0.1 occurrences145.06 Mya121.4 Mya149.9 Mya112.5 Mya

55 occurrences of Hartwellia on record, most of them in the Late Jurassic. 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

55 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

4 formations

Kap Leslie — 70.48°N, 21.97°WWoburn Sand — 52.13°N, 0.30°WAlcobaca — 38.42°N, 9.22°WMegion — 62.75°N, 79.00°E

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The named rock units Hartwellia has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Hartwellia and its relatives

Late Jurassic

Where Hartwellia and its relatives were recorded in the Late Jurassic.

Found in the same rock

113 taxa

The Paleobiology Database records 47 sites for Hartwellia, 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

4 references

Each of the 55 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 Hartwellia 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 Hartwellia, or no answer at all. This entry cannot say which.

No 3D scan of Hartwellia 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 itArcticidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kitchin 1926