Macrocallista

Searched as Macrocallista (Costacallista) conradiana meganosensis. The Paleobiology Database treats Macrocallista as the accepted name.

Macrocallista is a genus of saltwater clams, marine bivalve mollusks in the family Veneridae, the Venus clams.

Macrocallista

FWC Fish and Wildlife Research Institute · CC BY 2.0 · 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
VeneridaePBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 15 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 41.03 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 11 occurrencesEocene — about 11 of 11 occurrencesEocene57–56 Mya — about 0.0 occurrences56–55 Mya — about 0.5 occurrences55–55 Mya — about 0.5 occurrences55–54 Mya — about 0.5 occurrences54–54 Mya — about 0.5 occurrences54–53 Mya — about 0.5 occurrences53–53 Mya — about 0.5 occurrences53–52 Mya — about 0.5 occurrences52–52 Mya — about 0.5 occurrences52–51 Mya — about 0.5 occurrences51–51 Mya — about 0.5 occurrences51–50 Mya — about 0.5 occurrences50–50 Mya — about 0.5 occurrences50–49 Mya — about 0.5 occurrences49–49 Mya — about 0.5 occurrences49–48 Mya — about 0.5 occurrences48–47 Mya — about 0.2 occurrences47–47 Mya — about 0.2 occurrences47–46 Mya — about 0.2 occurrences46–46 Mya — about 0.2 occurrences46–45 Mya — about 0.2 occurrences45–45 Mya — about 0.2 occurrences45–44 Mya — about 0.2 occurrences44–44 Mya — about 0.2 occurrences44–43 Mya — about 0.2 occurrences43–43 Mya — about 0.2 occurrences43–42 Mya — about 0.2 occurrences42–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences41–41 Mya — about 0.0 occurrences56.5 Mya40.5 Mya

11 occurrences of Macrocallista on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

11 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

Roseburg — 43.01°N, 123.91°WRoseburg — 42.96°N, 123.83°WRoseburg — 43.27°N, 123.45°WRoseburg — 43.23°N, 123.37°WFlournoy — 43.31°N, 123.10°WFlournoy — 43.26°N, 123.03°W

Loading coastlines…

The named rock units Macrocallista has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Macrocallista and its relatives

Eocene

Where Macrocallista and its relatives were recorded in the Eocene.

Found in the same rock

3,330 taxa

The Paleobiology Database records 402 sites for Macrocallista, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

1 reference

Each of the 11 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Macrocallista

Credit
FWC Fish and Wildlife Research Institute
Licence
CC BY 2.0
Commercial use
the licence allows it

Photogrammetry

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Macrocallista macrocallista nimbosa · UF:Invertebrate Zoology:26559-Mollusca

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 itVeneridae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Meek 1876)