Callianassa alpha

Callianassa alpha

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 least 18 million years on record.

The record covers at least 56 Mya to 37.71 Mya. No occurrence read is dated outside 59.24 Mya to 33.9 Mya.

Paleocene — about 1 of 4 occurrencesPaleoceneEocene — about 3 of 4 occurrencesEoceneOligocene — about 0 of 4 occurrences60–59 Mya — about 0.1 occurrences59–58 Mya — about 0.3 occurrences58–57 Mya — about 0.3 occurrences57–56 Mya — about 0.3 occurrences56–55 Mya — about 0.1 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.2 occurrences47–46 Mya — about 0.2 occurrences46–45 Mya — about 0.2 occurrences45–44 Mya — about 0.2 occurrences44–43 Mya — about 0.2 occurrences43–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences41–40 Mya — about 0.2 occurrences40–40 Mya — about 0.2 occurrences40–39 Mya — about 0.2 occurrences39–38 Mya — about 0.2 occurrences38–37 Mya — about 0.2 occurrences37–36 Mya — about 0.2 occurrences36–35 Mya — about 0.2 occurrences35–34 Mya — about 0.2 occurrences34–33 Mya — about 0.1 occurrences56 Mya37.71 Mya59.7 Mya33.4 Mya

4 occurrences of Callianassa alpha on record, most of them in the Eocene. 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

Winona — 32.00°N, 88.00°WWeches — 31.00°N, 96.00°WJackson — 32.85°N, 90.41°W

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The named rock units Callianassa alpha 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.

Callianassa alpha and its relatives

Eocene

Where Callianassa alpha and its relatives were recorded in the Eocene.

Found in the same rock

5 taxa

The Paleobiology Database records 3 sites for Callianassa alpha, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 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. 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 Callianassa alpha

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 alpha 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 EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Stenzel 1935