Callianassa stephensi

Callianassa stephensi

via iDigBio · via iDigBio. 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
CallianassaPBDB
Diet
detritivorePBDB, for Axiidea
Life habit
infaunalPBDB, for Axiidea
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At most 2.6 million years on record.

Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pliocene — about 0 of 3 occurrencesPleistocene — about 3 of 3 occurrencesPleistoceneHolocene — about 0 of 3 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.1 occurrences2.5–2.4 Mya — about 0.1 occurrences2.4–2.3 Mya — about 0.1 occurrences2.3–2.2 Mya — about 0.1 occurrences2.2–2.1 Mya — about 0.1 occurrences2.1–2.0 Mya — about 0.1 occurrences2.0–1.8 Mya — about 0.1 occurrences1.8–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.5 Mya — about 0.1 occurrences1.5–1.4 Mya — about 0.1 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–1.0 Mya — about 0.1 occurrences1.0–924 ka Mya — about 0.1 occurrences924 ka–821 ka Mya — about 0.1 occurrences821 ka–719 ka Mya — about 0.2 occurrences719 ka–616 ka Mya — about 0.2 occurrences616 ka–513 ka Mya — about 0.2 occurrences513 ka–411 ka Mya — about 0.2 occurrences411 ka–308 ka Mya — about 0.2 occurrences308 ka–205 ka Mya — about 0.2 occurrences205 ka–103 ka Mya — about 0.2 occurrences103 ka–0 Mya — about 0.1 occurrences3.08 Mya0 Mya

3 occurrences of Callianassa stephensi on record, most of them in the Pleistocene. 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

San Pedro — 33.80°N, 118.17°WSan Pedro — 32.67°N, 117.14°WSan Pedro Sand — 33.74°N, 118.28°W

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

Callianassa stephensi and its relatives

Pleistocene

Where Callianassa stephensi and its relatives were recorded in the Pleistocene.

Found in the same rock

255 taxa

The Paleobiology Database records 2 sites for Callianassa stephensi, 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

1 reference

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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Callianassa stephensi

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Callianassa stephensi 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCallianassa through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rathbun 1926