Gryphaea arcuata

Gryphaea arcuata is an extinct species of foam oyster, a bivalve mollusc in the family Gryphaeidae from the Early Jurassic of Europe.

Gryphaea arcuata

H. Zell · CC BY-SA 3.0 · 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
GryphaeaPBDB
Diet
suspension feederPBDB, for Gryphaeidae
Life habit
epifaunalPBDB, for Gryphaeidae
Motility
stationary, attachedPBDB, for Gryphaeidae
Vision
blindPBDB, for Bivalvia
Environment
marine,brackishPBDB, for Ostreida

Time the record covers

At least 6.6 million years on record.

The record covers at least 199.5 Mya to 192.9 Mya. No occurrence read is dated outside 201.4 Mya to 161.5 Mya.

Late Triassic — about 0 of 145 occurrencesEarly Jurassic — about 144 of 145 occurrencesEarly JurassicMiddle Jurassic — about 1 of 145 occurrencesMiddle JurassicLate Jurassic — about 0 of 145 occurrences202–201 Mya — about 4 occurrences201–199 Mya — about 10 occurrences199–198 Mya — about 23 occurrences198–197 Mya — about 23 occurrences197–195 Mya — about 23 occurrences195–194 Mya — about 23 occurrences194–193 Mya — about 17 occurrences193–191 Mya — about 4 occurrences191–190 Mya — about 4 occurrences190–188 Mya — about 4 occurrences188–187 Mya — about 4 occurrences187–186 Mya — about 4 occurrences186–184 Mya — about 4 occurrences184–183 Mya — about 0.1 occurrences183–181 Mya — about 0.1 occurrences181–180 Mya — about 0.1 occurrences180–179 Mya — about 0.1 occurrences179–177 Mya — about 0.1 occurrences177–176 Mya — about 0.1 occurrences176–175 Mya — about 0.1 occurrences175–173 Mya — about 0.1 occurrences173–172 Mya — about 0.1 occurrences172–170 Mya — about 0.1 occurrences170–169 Mya — about 0.1 occurrences169–168 Mya — about 0.1 occurrences168–166 Mya — about 0.1 occurrences166–165 Mya — about 0.1 occurrences165–163 Mya — about 0.1 occurrences163–162 Mya — about 0.1 occurrences162–161 Mya — about 0.0 occurrences199.5 Mya192.9 Mya202.2 Mya160.7 Mya

145 occurrences of Gryphaea arcuata on record, most of them in the Early 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

145 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

9 formations

Calcaire a gryphees — 48.00°N, 6.00°EBlue Lias — 50.00°N, 2.00°WBlue Lias — 51.00°N, 3.00°WCape Stewart Beds — 70.46°N, 22.71°WCape Stewart Beds — 70.47°N, 22.64°WFjerritslev — 56.56°N, 10.01°ECalcaires à Gryphées — 48.00°N, 6.00°ECape Stewart — 70.45°N, 22.65°WCape Stewart — 70.44°N, 22.65°WMarnes et Calcaires de Strassen — 49.61°N, 6.08°EÁgua de Madeiros — 39.73°N, 9.04°WSaltrio — 45.88°N, 8.92°E

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The named rock units Gryphaea arcuata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 59 occurrences have no formation on record, which is common for older literature.

Gryphaea arcuata and its relatives

Early Jurassic

Where Gryphaea arcuata and its relatives were recorded in the Early Jurassic.

Found in the same rock

204 taxa

The Paleobiology Database records 69 sites for Gryphaea arcuata, 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

11 references

Each of the 145 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 content2

Picture of Gryphaea arcuata

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

Smithsonian Open Access was 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 itGryphaea through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1801