Eosiren libyca

Eosiren libyca

via iDigBio · CC BY · 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
EosirenPBDB
Diet
herbivorePBDB, for Dugongidae
Life habit
aquaticPBDB, for Sirenia
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB, for Sirenia

Time the record covers

At most 3.9 million years on record.

Every occurrence read is dated to somewhere between 37.71 Mya and 33.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 8 of 8 occurrencesEoceneOligocene — about 0 of 8 occurrences38–38 Mya — about 0.3 occurrences38–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–34 Mya — about 0.3 occurrences34–34 Mya — about 0.3 occurrences34–34 Mya — about 0.3 occurrences34–34 Mya — about 0.3 occurrences38.21 Mya33.4 Mya

8 occurrences of Eosiren libyca 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

8 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

Qasr el-Sagha — 29.58°N, 30.57°EQasr el-Sagha — 29.62°N, 30.69°EQasr el-Sagha — 29.57°N, 30.55°EBirket Qarun — 29.57°N, 30.56°EBirket Qarun — 29.56°N, 30.51°EBirket Qarun — 29.62°N, 30.70°E

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

Eosiren libyca and its relatives

Eocene

Where Eosiren libyca and its relatives were recorded in the Eocene.

Found in the same rock

13 taxa

The Paleobiology Database records 7 sites for Eosiren libyca, 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

4 references

Each of the 8 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 Eosiren libyca

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Eosiren libyca 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 itEosiren through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Andrews 1902