Segestria

Segestria is a genus of tube dwelling spiders that was first described by Pierre André Latreille in 1804.

Segestria

Luis Miguel Bugallo Sánchez ( Lmbuga Commons )( Lmbuga Galipedia ) · CC BY-SA 3.0 · 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.

On record

Recorded, not inferred
Sits inside
SegestriidaePBDB
Life habit
solitaryPBDB, for Arachnida
Motility
actively mobilePBDB, for Arachnida
Environment
terrestrialPBDB, for Arachnida

Time the record covers

At least 52 million years on record.

The record covers at least 89.8 Mya to 37 Mya. No occurrence read is dated outside 93.9 Mya to 33.9 Mya.

Late Cretaceous — about 1 of 27 occurrencesLate CretaceousPaleocene — about 0 of 27 occurrencesEocene — about 26 of 27 occurrencesEoceneOligocene — about 0 of 27 occurrences95–93 Mya — about 0.2 occurrences93–91 Mya — about 0.5 occurrences91–89 Mya — about 0.3 occurrences39–37 Mya — about 5 occurrences37–35 Mya — about 14 occurrences35–33 Mya — about 6 occurrences89.8 Mya37 Mya95 Mya33 Mya

27 occurrences of Segestria on record, most of them in the Eocene. 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

27 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

Florissant — 38.92°N, 105.28°WRaritan — 40.47°N, 74.32°WBouldnor — 50.74°N, 1.36°W

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The named rock units Segestria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 occurrences have no formation on record, which is common for older literature.

Segestria and its relatives

Eocene

Where Segestria and its relatives were recorded in the Eocene.

Found in the same rock

2,168 taxa

The Paleobiology Database records 12 sites for Segestria, 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

11 references

Each of the 27 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 Segestria

Credit
Luis Miguel Bugallo Sánchez ( Lmbuga Commons )( Lmbuga Galipedia )
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Segestria 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.

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 itSegestriidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1804