Youngofiber
Youngofiber is an extinct genus of beavers from Miocene China and Japan.

Jonathan Chen · CC BY-SA 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.
On record
Recorded, not inferred- Sits inside
- CastoridaePBDB
- Diet
- browserPBDB, for Castoridae
- Life habit
- amphibiousPBDB, for Castoridae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 12 million years on record.
Every occurrence read is dated to somewhere between 23.04 Mya and 11.63 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Youngofiber 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
4 occurrences- Miocene100%
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
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The named rock units Youngofiber has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Youngofiber and its relatives
MioceneWhere Youngofiber and its relatives were recorded in the Miocene.
Found in the same rock
62 taxa- Alloptox3 sites
- Chinemys reevesii3 sites
- Rhizomyinae3 sites
- Trionyx3 sites
- Cervidae2 sites
- Crocodylidae2 sites
- Democricetodon brevis2 sites
- Diatomys shantungensis2 sites
- Emydidae2 sites
- Galerix2 sites
- Lagomeryx2 sites
- Lanthanotherium2 sites
- Sayimys2 sites
- Vespertilionidae2 sites
- Amphicyon1 site
- Amphimoschus1 site
- Anchitherium1 site
- Ansomys orientalis1 site
- Aquila1 site
- Cricetidae1 site
- Cricetodon1 site
- Crocetidae indet.1 site
- Crocidosorex1 site
- Ctenopharyngodon sp.1 site
The Paleobiology Database records 4 sites for Youngofiber, 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 referencesEach of the 4 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 content1
Picture of Youngofiber
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Youngofiber”
- 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 itCastoridae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Chow and Li 1978