Rachis sp.

Rachis is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Cerastidae.

A picture published with the record for Rachis sp.. What it shows has not been checked.

Manuel CABALLER · 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.

Time the record covers

At most 60 million years on record.

Every occurrence read is dated to somewhere between 358.86 Mya and 298.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 0 of 16 occurrencesCarboniferous — about 16 of 16 occurrencesCarboniferousPermian — about 0 of 16 occurrences360–358 Mya — about 0.2 occurrences358–356 Mya — about 0.6 occurrences356–354 Mya — about 0.6 occurrences354–352 Mya — about 0.6 occurrences352–350 Mya — about 0.6 occurrences350–348 Mya — about 0.6 occurrences348–346 Mya — about 0.6 occurrences346–343 Mya — about 0.6 occurrences343–341 Mya — about 0.6 occurrences341–339 Mya — about 0.6 occurrences339–337 Mya — about 0.6 occurrences337–335 Mya — about 0.6 occurrences335–333 Mya — about 0.6 occurrences333–331 Mya — about 0.6 occurrences331–329 Mya — about 0.6 occurrences329–327 Mya — about 0.6 occurrences327–325 Mya — about 0.6 occurrences325–323 Mya — about 0.6 occurrences323–321 Mya — about 0.6 occurrences321–318 Mya — about 0.6 occurrences318–316 Mya — about 0.6 occurrences316–314 Mya — about 0.6 occurrences314–312 Mya — about 0.6 occurrences312–310 Mya — about 0.6 occurrences310–308 Mya — about 0.6 occurrences308–306 Mya — about 0.6 occurrences306–304 Mya — about 0.6 occurrences304–302 Mya — about 0.6 occurrences302–300 Mya — about 0.6 occurrences300–298 Mya — about 0.2 occurrences360 Mya298 Mya

16 occurrences of Rachis sp. on record, most of them in the Carboniferous. 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

16 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

1 formation

Pottsville — 33.82°N, 87.42°WPottsville — 33.00°N, 87.00°W

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

Rachis sp. and its relatives

Carboniferous

Where Rachis sp. and its relatives were recorded in the Carboniferous.

Found in the same rock

29 taxa

The Paleobiology Database records 3 sites for Rachis sp., 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 16 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 content2

Picture of Rachis sp.

Credit
Manuel CABALLER
Licence
CC BY 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

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 itFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.