Palaeastacus walkeri

A picture published with the record for Palaeastacus walkeri. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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
PalaeastacusPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
infaunalPBDB, for Erymidae
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 28 million years on record.

The record covers at least 100.5 Mya to 72.2 Mya. No occurrence read is dated outside 106.3 Mya to 66 Mya.

Early Cretaceous — about 2 of 4 occurrencesEarly CretaceousLate Cretaceous — about 2 of 4 occurrencesLate CretaceousPaleocene — about 0 of 4 occurrences107–106 Mya — about 0.2 occurrences106–104 Mya — about 0.5 occurrences104–103 Mya — about 0.5 occurrences103–102 Mya — about 0.5 occurrences102–100 Mya — about 0.4 occurrences100–99 Mya — about 0.1 occurrences99–97 Mya — about 0.1 occurrences97–96 Mya — about 0.1 occurrences96–95 Mya — about 0.1 occurrences95–93 Mya — about 0.1 occurrences93–92 Mya — about 0.1 occurrences92–90 Mya — about 0.1 occurrences90–89 Mya — about 0.1 occurrences74–72 Mya — about 0.0 occurrences72–71 Mya — about 0.2 occurrences71–69 Mya — about 0.2 occurrences69–68 Mya — about 0.2 occurrences68–67 Mya — about 0.2 occurrences67–65 Mya — about 0.1 occurrences100.5 Mya72.2 Mya107.1 Mya65.2 Mya

4 occurrences of Palaeastacus walkeri on record. 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

4 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

3 formations

Fort Worth Limestone — 30.65°N, 97.68°WWeno — 32.70°N, 97.31°WBuda limestone — 30.30°N, 97.75°W

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The named rock units Palaeastacus walkeri 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.

Found in the same rock

The Paleobiology Database records no fossil sites for Palaeastacus walkeri, so there is nothing to compare it with.

Entered from

1 reference

Each of the 4 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 Palaeastacus walkeri

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itPalaeastacus through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Whitfield 1883)