Ranzania grahami

Ranzania grahami is an extinct fossil species of fish, that lived in Middle Miocene, in Calvert Formation, of Virginia state. 10 specimens of R. grahami were found, all in the same location in what is now Virginia. Fossil remains date from the Langhian to the Serravallian.

Ranzania grahami

via GBIF · 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
RanzaniaPBDB
Diet
carnivorePBDB, for Tetraodontiformes
Life habit
nektonicPBDB, for Tetraodontiformes
Motility
actively mobilePBDB, for Tetraodontiformes

Time the record covers

At most 4.4 million years on record.

Every occurrence read is dated to somewhere between 15.98 Mya and 11.63 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 3 of 3 occurrencesMiocene16–16 Mya — about 0.0 occurrences16–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences16–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.2 occurrences14–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–11 Mya — about 0.0 occurrences16.5 Mya11.1 Mya

3 occurrences of Ranzania grahami on record, most of them in the Miocene. 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

3 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

Calvert — 38.16°N, 76.83°WChoptank — 38.16°N, 76.83°W

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The named rock units Ranzania grahami has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Ranzania grahami and its relatives

Miocene

Where Ranzania grahami and its relatives were recorded in the Miocene.

Found in the same rock

109 taxa

The Paleobiology Database records 3 sites for Ranzania grahami, 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

2 references

Each of the 3 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 the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Ranzania grahami

Source
GBIF
Credit
via GBIF
Licence
CC0
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 itRanzania through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Weems 1985