Amygdalum

Amygdalum

Uncredited · via Wikidata/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
MytilidaePBDB
Diet
suspension feederPBDB
Life habit
semi-infaunalPBDB
Motility
stationary, attachedPBDB
Vision
blindPBDB, for Bivalvia
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae

Time the record covers

At least 125 million years on record.

The record covers at least 125.77 Mya to 129 ka. No occurrence read is dated outside 143.1 Mya to 11.7 ka.

Late Jurassic — about 0 of 53 occurrencesEarly Cretaceous — about 2 of 53 occurrencesEarly CretaceousLate Cretaceous — about 0 of 53 occurrencesPaleocene — about 0 of 53 occurrencesEocene — about 6 of 53 occurrencesEoceneOligocene — about 6 of 53 occurrencesMiocene — about 28 of 53 occurrencesMiocenePliocene — about 7 of 53 occurrencesPleistocene — about 4 of 53 occurrences146–141 Mya — about 0.1 occurrences141–136 Mya — about 0.3 occurrences136–131 Mya — about 0.3 occurrences131–127 Mya — about 0.3 occurrences127–122 Mya — about 0.0 occurrences122–117 Mya — about 0.6 occurrences117–112 Mya — about 0.4 occurrences58–54 Mya — about 1 occurrence54–49 Mya — about 2 occurrences49–44 Mya — about 0.3 occurrences44–39 Mya — about 1 occurrence39–34 Mya — about 0.7 occurrences34–29 Mya — about 2 occurrences29–24 Mya — about 3 occurrences24–19 Mya — about 2 occurrences19–15 Mya — about 7 occurrences15–9.7 Mya — about 15 occurrences9.7–4.9 Mya — about 6 occurrences4.9–0 Mya — about 10 occurrences125.77 Mya129 ka146 Mya0 Mya

53 occurrences of Amygdalum on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

53 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

23 formations

Berada — 51.10°N, 5.80°ELondon Clay — 51.43°N, 2.00°WLondon Clay — 50.89°N, 1.28°WLondon Clay — 51.08°N, 1.17°WLillo — 51.25°N, 4.28°EBorgloon — 50.80°N, 5.33°EBorgloon — 51.00°N, 4.50°ECoralline Crag — 52.03°N, 1.38°ECoralline Crag — 52.75°N, 1.53°EKattendijk — 51.25°N, 4.28°EBreda — 51.95°N, 6.75°EBrejning Clay — 56.17°N, 9.75°EVejle Fjord — 55.18°N, 11.88°EIshido — 36.25°N, 138.67°EHiraiga — 40.00°N, 141.83°EDiest — 51.19°N, 4.46°EPinczow — 50.53°N, 20.53°EWeglin — 50.72°N, 21.95°EWeglinek — 50.72°N, 21.95°ELychow — 50.69°N, 22.03°ETapui Glauconitic Sandstone — 44.96°S, 170.65°EWaihao — 44.20°S, 171.05°EMount Brown — 44.16°S, 171.10°EOtekaike Limestone — 44.86°S, 170.67°ERed Crag — 51.85°N, 1.28°ETainui Shell Bed — 39.95°S, 174.98°EWerder — 52.98°N, 9.06°E

Loading coastlines…

The named rock units Amygdalum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Amygdalum and its relatives

Miocene

Where Amygdalum and its relatives were recorded in the Miocene.

Found in the same rock

1,373 taxa

The Paleobiology Database records 38 sites for Amygdalum, 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

24 references

Each of the 53 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. 12 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 content2

Picture of Amygdalum

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Amygdalum arborescens · USNM:IZ:USNM 161738

Smithsonian Open Access was 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 itMytilidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Megerle 1811)