Dusisiren

Nobu Tamura ( http://spinops.blogspot.ca/ ) · CC BY-SA 4.0 · via Wikidata/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
- HydrodamalinaePBDB
- Diet
- herbivorePBDB, for Dugongidae
- Life habit
- aquaticPBDB, for Sirenia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Sirenia
Time the record covers
At least 6.2 million years on record.
The record covers at least 11.63 Mya to 5.333 Mya. No occurrence read is dated outside 15.98 Mya to 3.6 Mya.
27 occurrences of Dusisiren on record, most of them in the Miocene. 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 occurrencesThese 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
10 formations
- Monterey Formation12
- Santa Margarita Formation6
- Ysidro Formation2
- Pismo Formation1
- Drakes Bay Formation1
- Purisima Formation1
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The named rock units Dusisiren has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Dusisiren and its relatives
MioceneWhere Dusisiren and its relatives were recorded in the Miocene.
Found in the same rock
200 taxa- Carcharodon hastalis7 sites
- Moris lompocana6 sites
- Pithanotaria starri6 sites
- Imagotaria downsi5 sites
- Otodus megalodon5 sites
- Balaenopteridae4 sites
- Desmostylus4 sites
- Imagotaria4 sites
- Mysticeti4 sites
- Odobenidae4 sites
- Otariidae4 sites
- Teleostei4 sites
- Albireonidae3 sites
- Allodesmus3 sites
- Aves3 sites
- Carcharhinus3 sites
- Cetacea3 sites
- Delphinapterinae3 sites
- Mancallinae3 sites
- Panphyseteroidea3 sites
- Pelagornis orri3 sites
- Puffinus calhouni3 sites
- Aethia2 sites
- Atocetus nasalis2 sites
The Paleobiology Database records 24 sites for Dusisiren, 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
8 references- Sirenian evolution in the North Pacific Ocean12
- Middle and late Miocene marine mammal assemblages from the Monterey Formation of Orange County, California7
- Summary of taxa and distribution of Sirenia in the North Pacific Ocean3
- New material of sirenian fossil from the upper Miocene of Numata-cho, Hokkaido, Japan1
- A new species of Sirenia (Mammalia: Hydrodamalinae) from the Shiotsubo Formation in Takasato, Aizu, Fukushima Prefecture, Japan1
- Dusisiren dewana, n. sp. (Mammalia: Sirenia), a new ancestor of Stellers sea cow from the upper Miocene of Yamagata prefecture, northeastern Japan1
- A late Miocene marine vertebrate assemblage from Southern California1
- A new fossil sirenian from Santa Barbara County, California1
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 content3

Picture of Dusisiren
- Source
- Wikidata/Commons
- Credit
- Nobu Tamura ( http://spinops.blogspot.ca/ )
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Dusisiren jordani · UCMP:V:3794
3D model
- Source
- Sketchfab
- Credit
- Cooper_Lab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access was 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 itHydrodamalinae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Domning 1978