Brachidontes (Arcomytilus)

Mytilus morrisii Sharpe, 1850, a relative of Brachidontes (Arcomytilus) — not Brachidontes (Arcomytilus) itself

Not Brachidontes (Arcomytilus). This is Mytilus morrisii Sharpe, 1850, a relative — both are Mytilidae.

Edmond Pellat · 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
BrachidontesPBDB
Diet
suspension feederPBDB, for Brachidontes
Life habit
epifaunalPBDB, for Brachidontes
Motility
stationary, attachedPBDB, for Brachidontes
Vision
blindPBDB, for Bivalvia
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae

Time the record covers

At least 16 million years on record.

The record covers at least 165.3 Mya to 149.2 Mya. No occurrence read is dated outside 168.2 Mya to 143.1 Mya.

Middle Jurassic — about 4 of 8 occurrencesMiddle JurassicLate Jurassic — about 4 of 8 occurrencesLate JurassicEarly Cretaceous — about 0 of 8 occurrences169–168 Mya — about 0.4 occurrences168–167 Mya — about 0.9 occurrences167–166 Mya — about 0.9 occurrences166–165 Mya — about 0.8 occurrences165–164 Mya — about 0.2 occurrences164–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–162 Mya — about 0.2 occurrences162–161 Mya — about 0.1 occurrences156–155 Mya — about 0.0 occurrences155–154 Mya — about 0.1 occurrences154–153 Mya — about 0.1 occurrences153–152 Mya — about 0.1 occurrences152–151 Mya — about 0.1 occurrences151–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–149 Mya — about 0.3 occurrences149–148 Mya — about 0.5 occurrences148–147 Mya — about 0.5 occurrences147–146 Mya — about 0.5 occurrences146–145 Mya — about 0.5 occurrences145–144 Mya — about 0.4 occurrences144–143 Mya — about 0.4 occurrences143–143 Mya — about 0.2 occurrences165.3 Mya149.2 Mya168.7 Mya142.6 Mya

8 occurrences of Brachidontes (Arcomytilus) on record, most of them in the Middle 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

8 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

3 formations

Neuburg — 48.73°N, 11.18°ECalcaires marno-crayeux superieurs — 49.87°N, 4.06°ECalcaires pseudo-oolithiques inferieurs — 49.68°N, 4.61°E

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The named rock units Brachidontes (Arcomytilus) 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.

Brachidontes (Arcomytilus) and its relatives

Middle Jurassic

Where Brachidontes (Arcomytilus) and its relatives were recorded in the Middle Jurassic.

Found in the same rock

84 taxa

The Paleobiology Database records 8 sites for Brachidontes (Arcomytilus), 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

4 references

Each of the 8 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 Mytilus morrisii Sharpe, 1850

Source
GBIF
Credit
Edmond Pellat
Licence
CC0
Commercial use
the licence allows it

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itBrachidontes through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1842