Brachydelphis

Brachydelphis is a genus of pontoporiid known from the Late Miocene Pisco Formation of Peru and the Bahía Inglesa Formation of Chile.

Brachydelphis

Macrophyseter · CC BY 4.0 · 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
PontoporiidaePBDB
Diet
carnivorePBDB, for Odontoceti
Life habit
aquatic, depth=surfacePBDB, for Cetacea
Motility
actively mobilePBDB, for Cetacea
Environment
marine,freshwaterPBDB, for Odontoceti

Time the record covers

At most 8.5 million years on record.

Every occurrence read is dated to somewhere between 13.82 Mya and 5.333 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 14 of 14 occurrencesMiocenePliocene — about 0 of 14 occurrences14–14 Mya — about 0.0 occurrences14–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–11 Mya — about 0.4 occurrences11–11 Mya — about 0.7 occurrences11–11 Mya — about 0.7 occurrences11–11 Mya — about 0.7 occurrences11–10 Mya — about 0.7 occurrences10–9.9 Mya — about 0.7 occurrences9.9–9.6 Mya — about 0.7 occurrences9.6–9.3 Mya — about 0.7 occurrences9.3–8.9 Mya — about 0.7 occurrences8.9–8.6 Mya — about 0.7 occurrences8.6–8.3 Mya — about 0.7 occurrences8.3–8.0 Mya — about 0.7 occurrences8.0–7.7 Mya — about 0.7 occurrences7.7–7.4 Mya — about 0.7 occurrences7.4–7.0 Mya — about 0.6 occurrences7.0–6.7 Mya — about 0.5 occurrences6.7–6.4 Mya — about 0.5 occurrences6.4–6.1 Mya — about 0.5 occurrences6.1–5.8 Mya — about 0.5 occurrences5.8–5.5 Mya — about 0.5 occurrences5.5–5.1 Mya — about 0.2 occurrences14.3 Mya4.8 Mya

14 occurrences of Brachydelphis 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

14 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

Pisco — 14.56°S, 75.67°WPisco — 15.44°S, 74.87°WPisco — 14.52°S, 75.71°WPisco — 14.33°S, 75.90°WPisco — 14.31°S, 75.81°WPisco — 15.50°S, 74.80°WBahía Inglesa — 27.08°S, 70.84°WBahía Inglesa — 27.14°S, 70.88°WBahía Inglesa — 27.16°S, 70.89°W

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The named rock units Brachydelphis 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.

Brachydelphis and its relatives

Miocene

Where Brachydelphis and its relatives were recorded in the Miocene.

Found in the same rock

147 taxa

The Paleobiology Database records 12 sites for Brachydelphis, 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

11 references

Each of the 14 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 Brachydelphis

Credit
Macrophyseter
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Brachydelphis was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 itPontoporiidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Muizon 1988