Hedbergella

Hedbergella is an extinct genus of planktonic foraminifera from the Cretaceous, described by Loeblich and Tappan, 1961, as:Test free, trochospiral, biconvex, umbilicate, periphery rounded with no indication of keel or poreless margin; chambers globular to ovate; sutures depressed, radial, straight or curved; wall calcareous, finely perforate, radial in structure, surface smooth to hispid or rugose; aperture an interiomarginal, extraumbilical-umbilical arch commonly bordered above by a narrow lip or spatulate flap, ... Includes species otherwise similar to Praeglobotruncana but which lack a keel or poreless margin, hence is regarded as a separate genus rather than as a subgenus of Praeglobotruncana as by Banner and Blow (1959).

Hedbergella

via iDigBio · CC0 · via iDigBio. 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
HedbergellinaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
planktonicPBDB, for Globigerinina
Motility
stationaryPBDB, for Foraminifera
Environment
marinePBDB, for Globigerinina

Time the record covers

At least 91 million years on record.

The record covers at least 125.77 Mya to 33.9 Mya. No occurrence read is dated outside 201.4 Mya to 23.04 Mya.

Late Triassic — about 0 of 290 occurrencesEarly Jurassic — about 1 of 290 occurrencesEarly JurassicMiddle Jurassic — about 0 of 290 occurrencesLate Jurassic — about 0 of 290 occurrencesLate JurassicEarly Cretaceous — about 37 of 290 occurrencesEarly CretaceousLate Cretaceous — about 222 of 290 occurrencesLate CretaceousPaleocene — about 29 of 290 occurrencesEocene — about 0 of 290 occurrencesOligocene — about 1 of 290 occurrencesMiocene — about 0 of 290 occurrences205–199 Mya — about 0.1 occurrences199–193 Mya — about 0.1 occurrences193–186 Mya — about 0.1 occurrences186–180 Mya — about 0.1 occurrences180–174 Mya — about 0.1 occurrences174–168 Mya — about 0.1 occurrences168–162 Mya — about 0.1 occurrences162–156 Mya — about 0.1 occurrences156–149 Mya — about 0.1 occurrences149–143 Mya — about 0.1 occurrences143–137 Mya — about 0.8 occurrences137–131 Mya — about 3 occurrences131–125 Mya — about 6 occurrences125–118 Mya — about 4 occurrences118–112 Mya — about 4 occurrences112–106 Mya — about 11 occurrences106–100 Mya — about 15 occurrences100–94 Mya — about 69 occurrences94–87 Mya — about 55 occurrences87–81 Mya — about 10 occurrences81–75 Mya — about 4 occurrences75–69 Mya — about 41 occurrences69–63 Mya — about 57 occurrences63–57 Mya — about 7 occurrences38–32 Mya — about 0.2 occurrences32–26 Mya — about 0.6 occurrences26–19 Mya — about 0.2 occurrences125.77 Mya33.9 Mya205 Mya19 Mya

290 occurrences of Hedbergella on record, most of them in the Late Cretaceous. 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

290 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

21 formations

El Haria — 36.19°N, 8.71°EEl Haria — 35.95°N, 9.10°ESecond White Specks — 49.50°N, 112.17°WSecond White Specks — 51.58°N, 111.00°WSecond White Specks — 53.00°N, 110.17°WWhite Chalk — 50.80°N, 0.18°EPlenus Marl — 50.80°N, 0.18°ELower Chalk — 50.80°N, 0.18°Efahdène — 36.57°N, 8.77°EBahloul — 34.13°N, 9.17°EBahloul — 34.12°N, 9.03°EDakhla — 26.35°N, 33.02°EAbu Qada — 28.81°N, 33.50°ERaha — 28.81°N, 33.50°EZebbag — 34.12°N, 9.03°EZebbag — 34.15°N, 9.08°EDuwi — 30.05°N, 31.25°ENatih — 22.33°N, 57.33°EWata — 28.81°N, 33.50°EKemshidag — 41.12°N, 48.63°EMaiolica — 43.59°N, 12.54°ESärdal Beds — 56.75°N, 12.63°EMarnes à Huîtres — 38.77°N, 9.30°WTe Mai — 40.88°S, 176.97°EQuebrada Blanca de Poquis — 22.96°S, 67.07°WLindi — 10.02°S, 39.65°E

Loading coastlines…

The named rock units Hedbergella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 75 occurrences have no formation on record, which is common for older literature.

Hedbergella and its relatives

Late Cretaceous

Where Hedbergella and its relatives were recorded in the Late Cretaceous.

Found in the same rock

425 taxa

The Paleobiology Database records 244 sites for Hedbergella, and this reads 240 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

35 references

Each of the 290 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. 23 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 Hedbergella

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itHedbergellinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.