Hefriga

Hefriga is an extinct genus of shrimp in the order Decapoda. It lived in the Jurassic period.

Hefriga

Ghedoghedo · 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
PenaeidaePBDB
Diet
carnivorePBDB, for Penaeidae
Life habit
semi-infaunalPBDB, for Penaeidae
Motility
actively mobilePBDB, for Penaeoidea
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 84 million years on record.

The record covers at least 233.6 Mya to 149.2 Mya. No occurrence read is dated outside 237 Mya to 145.06 Mya.

Middle Triassic — about 0 of 9 occurrencesLate Triassic — about 2 of 9 occurrencesLate TriassicEarly Jurassic — about 0 of 9 occurrencesMiddle Jurassic — about 0 of 9 occurrencesLate Jurassic — about 7 of 9 occurrencesLate Jurassic239–236 Mya — about 0.8 occurrences236–232 Mya — about 1 occurrence162–159 Mya — about 0.3 occurrences159–156 Mya — about 0.5 occurrences156–153 Mya — about 0.2 occurrences153–150 Mya — about 3 occurrences150–146 Mya — about 2 occurrences146–143 Mya — about 1.0 occurrences233.6 Mya149.2 Mya239 Mya143 Mya

9 occurrences of Hefriga 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

9 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

Liegende Bankkalk — 48.12°N, 8.87°EEichstätt — 48.89°N, 11.18°ESundance — 44.72°N, 104.61°WSolnhofen Platenkalk — 48.92°N, 11.50°E

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The named rock units Hefriga has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Hefriga and its relatives

Late Jurassic

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

Found in the same rock

24 taxa

The Paleobiology Database records 5 sites for Hefriga, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

7 references

Each of the 9 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 Hefriga

Credit
Ghedoghedo
Licence
CC BY-SA 3.0
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 itPenaeidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Munster 1839