Sirenia

Searched as Sirenia indet.. The Paleobiology Database treats Sirenia as the accepted name.

The Sirenia, commonly referred to as sea cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The extant Sirenia comprise two distinct families:Dugongidae and Trichechidae with a total of three species.

Sirenia

File:Underwater photography of mammal manatee.jpg (Ramos Keith, U.S. Fish and Wildlife Service) File:I432^cimgpsh ori… · Public Domain · 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
Also called
sirenianPBDB
Sits inside
TethytheriaPBDB
Diet
herbivorePBDB
Life habit
aquaticPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB

Time the record covers

At least 40 million years on record.

The record covers at least 41.03 Mya to 210 ka. No occurrence read is dated outside 56 Mya to 11.7 ka.

Paleocene — about 0 of 230 occurrencesEocene — about 72 of 230 occurrencesEoceneOligocene — about 32 of 230 occurrencesOligoceneMiocene — about 111 of 230 occurrencesMiocenePliocene — about 10 of 230 occurrencesPleistocene — about 5 of 230 occurrences57–55 Mya — about 0.3 occurrences55–53 Mya — about 0.8 occurrences53–51 Mya — about 0.8 occurrences51–50 Mya — about 0.8 occurrences50–48 Mya — about 2 occurrences48–46 Mya — about 4 occurrences46–44 Mya — about 4 occurrences44–42 Mya — about 4 occurrences42–40 Mya — about 12 occurrences40–38 Mya — about 18 occurrences38–36 Mya — about 13 occurrences36–34 Mya — about 11 occurrences34–32 Mya — about 7 occurrences32–30 Mya — about 6 occurrences30–29 Mya — about 6 occurrences29–27 Mya — about 6 occurrences27–25 Mya — about 5 occurrences25–23 Mya — about 6 occurrences23–21 Mya — about 12 occurrences21–19 Mya — about 19 occurrences19–17 Mya — about 22 occurrences17–15 Mya — about 17 occurrences15–13 Mya — about 14 occurrences13–11 Mya — about 9 occurrences11–9.5 Mya — about 6 occurrences9.5–7.6 Mya — about 5 occurrences7.6–5.7 Mya — about 5 occurrences5.7–3.8 Mya — about 7 occurrences3.8–1.9 Mya — about 4 occurrences1.9–0 Mya — about 4 occurrences41.03 Mya210 ka57 Mya0 Mya

230 occurrences of Sirenia on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

230 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

78 formations

Cluj Limestone — 46.78°N, 22.60°ECluj Limestone — 47.03°N, 23.07°ECluj Limestone — 46.78°N, 23.52°ECluj Limestone — 47.32°N, 23.74°ECluj Limestone — 46.65°N, 23.55°ECluj Limestone — 46.76°N, 23.57°ECastle Hayne — 34.63°N, 77.68°WCastle Hayne — 34.36°N, 77.82°WCastle Hayne — 35.32°N, 77.33°WBeglia — 34.00°N, 8.00°EBeglia — 34.33°N, 8.41°EBeglia — 34.20°N, 8.70°EGosport — 31.56°N, 87.52°WGosport — 31.50°N, 87.90°WGosport — 31.79°N, 88.44°WSanta Margarita — 35.45°N, 120.28°WSanta Margarita — 36.97°N, 122.08°WSanta Margarita — 37.05°N, 122.04°WSan Sebastian — 18.29°N, 66.85°WSan Sebastian — 18.34°N, 66.96°WAlzey — 49.78°N, 7.99°EEsbarrondadoiro — 38.11°N, 8.36°WEsbarrondadoiro — 39.30°N, 8.12°WMargas de Pamplona — 42.89°N, 0.94°WMargas de Pamplona — 42.56°N, 0.71°WHarudi — 23.65°N, 68.66°EHarudi — 23.73°N, 68.74°EPemba — 4.95°S, 39.82°EPemba — 5.11°S, 39.71°EDaba'a — 29.16°N, 27.43°EDaba'a — 29.42°N, 26.77°EStatenville — 30.40°N, 83.00°WBeaumont — 29.66°N, 94.09°WMishan — 27.77°N, 53.10°EMishan — 27.10°N, 54.00°EBrebi — 47.47°N, 23.49°EBrebi — 46.78°N, 23.52°EMera — 46.82°N, 23.45°EMera — 47.51°N, 23.88°ELaredo — 27.53°N, 99.43°WDam — 25.98°N, 49.39°EKaninah — 14.49°N, 48.35°EChickasawhay — 31.64°N, 88.65°WRed Bluff — 31.81°N, 88.69°WCook Mountain — 26.59°N, 99.15°WMoodys Branch — 31.10°N, 86.09°W

Loading coastlines…

The named rock units Sirenia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 54 further formations hold fewer occurrences each and are not listed. 125 occurrences have no formation on record, which is common for older literature.

Sirenia and its relatives

Miocene

Where Sirenia and its relatives were recorded in the Miocene.

Found in the same rock

1,833 taxa

The Paleobiology Database records 794 sites for Sirenia, and this reads 240 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

83 references

Each of the 230 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. 71 further references are not listed. 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 Sirenia

Credit
File:Underwater photography of mammal manatee.jpg (Ramos Keith, U.S. Fish and Wildlife Service) File:I432^cimgpsh ori…
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Sirenia 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 itTethytheria through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Illiger 1811)