Hantkenina

Hantkenina is a genus of planktonic foraminifera that lived from the Middle Eocene up to late Eocene, circa 49 Ma-33.9 Ma. There have been 11 morphospecies described, including one of Cribrohantkenina

Hantkenina

Jo Ann Sanner, Smithsonian Institution, NMNH, Paleobiology · CC0 · via Wikipedia/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
HantkeninidaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Foraminifera
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At least 17 million years on record.

The record covers at least 41.03 Mya to 23.04 Mya. No occurrence read is dated outside 56 Mya to 5.333 Mya.

Paleocene — about 0 of 75 occurrencesEocene — about 71 of 75 occurrencesEoceneOligocene — about 0 of 75 occurrencesMiocene — about 4 of 75 occurrencesMiocenePliocene — about 0 of 75 occurrences57–55 Mya — about 0.1 occurrences55–54 Mya — about 0.1 occurrences54–52 Mya — about 0.1 occurrences52–50 Mya — about 0.1 occurrences50–48 Mya — about 0.1 occurrences48–46 Mya — about 8 occurrences46–45 Mya — about 9 occurrences45–43 Mya — about 9 occurrences43–41 Mya — about 10 occurrences41–39 Mya — about 9 occurrences39–38 Mya — about 8 occurrences38–36 Mya — about 8 occurrences36–34 Mya — about 8 occurrences34–32 Mya — about 1 occurrence24–22 Mya — about 0.3 occurrences22–20 Mya — about 0.4 occurrences20–18 Mya — about 0.4 occurrences18–17 Mya — about 0.4 occurrences17–15 Mya — about 0.4 occurrences15–13 Mya — about 0.4 occurrences13–11 Mya — about 0.4 occurrences11–9.6 Mya — about 0.4 occurrences9.6–7.8 Mya — about 0.4 occurrences7.8–6.1 Mya — about 0.4 occurrences6.1–4.3 Mya — about 0.2 occurrences41.03 Mya23.04 Mya57 Mya4 Mya

75 occurrences of Hantkenina 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

75 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

5 formations

Seca — 2.32°S, 80.78°WZapallo — 0.87°N, 79.85°WKreyenhagen — 36.96°N, 120.06°WButano — 37.18°N, 122.14°WYazoo — 31.48°N, 87.48°W

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The named rock units Hantkenina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 70 occurrences have no formation on record, which is common for older literature.

Hantkenina and its relatives

Eocene

Where Hantkenina and its relatives were recorded in the Eocene.

Found in the same rock

193 taxa

The Paleobiology Database records 72 sites for Hantkenina, 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

13 references

Each of the 75 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. 1 further reference is 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 Hantkenina

Credit
Jo Ann Sanner, Smithsonian Institution, NMNH, Paleobiology
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Hantkenina 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.

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 itHantkeninidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cushman 1924