Archoplites interruptus

The Sacramento perch is a species of freshwater sunfish endemic to California, and transplanted to other parts of the western United States. It is the only extant species within the genus Archoplites. It is the only species of freshwater sunfish whose native habitat resides west of the Rocky Mountains, while all the other species are native to the east. Due its small range and the impact of introduced species on it, it is considered Endangered on the IUCN Red List.

Archoplites interruptus

USFWS Fish and Aquatic Conservation · Public Domain · 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
Also called
Sacramento perchPBDB
Sits inside
ArchoplitesPBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At most 1.2 million years on record.

Every occurrence read is dated to somewhere between 1.4 Mya and 210 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 2 of 2 occurrencesPleistoceneHolocene — about 0 of 2 occurrences1.5–1.4 Mya — about 0.0 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.3 Mya — about 0.1 occurrences1.3–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–1.1 Mya — about 0.1 occurrences1.1–1.0 Mya — about 0.1 occurrences1.0–950 ka Mya — about 0.1 occurrences950 ka–887 ka Mya — about 0.1 occurrences887 ka–823 ka Mya — about 0.1 occurrences823 ka–760 ka Mya — about 0.1 occurrences760 ka–697 ka Mya — about 0.1 occurrences697 ka–633 ka Mya — about 0.1 occurrences633 ka–570 ka Mya — about 0.1 occurrences570 ka–507 ka Mya — about 0.1 occurrences507 ka–443 ka Mya — about 0.1 occurrences443 ka–380 ka Mya — about 0.1 occurrences380 ka–317 ka Mya — about 0.1 occurrences317 ka–253 ka Mya — about 0.1 occurrences253 ka–190 ka Mya — about 0.1 occurrences1.9 Mya0 Mya

2 occurrences of Archoplites interruptus on record, most of them in the Pleistocene. 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

2 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

Turlock Lake — 37.06°N, 120.20°WSan Antonio — 37.75°N, 122.13°W

Loading coastlines…

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

Archoplites interruptus and its relatives

Pleistocene

Where Archoplites interruptus and its relatives were recorded in the Pleistocene.

Found in the same rock

55 taxa

The Paleobiology Database records 2 sites for Archoplites interruptus, 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 2 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 content2

Picture of Archoplites interruptus

Credit
USFWS Fish and Aquatic Conservation
Licence
Public Domain
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Archoplites interruptus · UF:Fish:96111

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 itArchoplites through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Girard 1854