Girvanella

Searched as Girvanella minuta. The Paleobiology Database treats Girvanella as the accepted name.

Girvanella

Collector(s): Spencer G. Lucas, Barry Stephen Kues · CC0 · via GBIF. 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
GirvanellaceaePBDB
Diet
"photoautotroph"PBDB
Life habit
epifaunalPBDB
Motility
stationary, attached, epibiontPBDB
Environment
hypersaline,marine,brackish,freshwaterPBDB, for Cyanobacteria

Time the record covers

At least 92 million years on record.

The record covers at least 152.21 Mya to 59.24 Mya. No occurrence read is dated outside 157.9 Mya to 56 Mya.

Late Jurassic — about 3 of 5 occurrencesLate JurassicEarly Cretaceous — about 0 of 5 occurrencesLate Cretaceous — about 0 of 5 occurrencesPaleocene — about 2 of 5 occurrencesPaleoceneEocene — about 0 of 5 occurrences160–156 Mya — about 0.3 occurrences156–153 Mya — about 1 occurrence153–149 Mya — about 1 occurrence149–146 Mya — about 0.1 occurrences61–57 Mya — about 1 occurrence57–54 Mya — about 0.9 occurrences152.21 Mya59.24 Mya160 Mya54 Mya

5 occurrences of Girvanella 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

5 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

2 formations

Uhrov — 49.12°N, 18.45°EAlcobaça — 39.55°N, 8.98°W

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The named rock units Girvanella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Girvanella and its relatives

Late Jurassic

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

Found in the same rock

2,027 taxa

The Paleobiology Database records 275 sites for Girvanella, 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

4 references

Each of the 5 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 content1

Picture of Girvanella

Source
GBIF
Credit
Collector(s): Spencer G. Lucas, Barry Stephen Kues
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Girvanella 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 itGirvanellaceae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Nicholson and Etheridge 1878