Hydrochara libera

sozukk · CC BY-NC 4.0 · via GBIF. 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
- HydrocharaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 2.4 million years on record.
The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 5.333 Mya to 11.7 ka.
3 occurrences of Hydrochara libera on record, most of them in the Pleistocene. 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
3 occurrences- Pliocene33%
- Pleistocene67%
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
Loading coastlines…
The named rock units Hydrochara libera has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hydrochara libera and its relatives
PleistoceneWhere Hydrochara libera and its relatives were recorded in the Pleistocene.
Found in the same rock
51 taxa- Carabidae3 sites
- Coelostoma3 sites
- Curculionidae3 sites
- Donacia3 sites
- Donaciinae3 sites
- Lepidoptera3 sites
- Oodini3 sites
- Plateumaris3 sites
- Staphylinidae3 sites
- Chrysomelidae2 sites
- Coleoptera2 sites
- Donacia (Cyphogaster)2 sites
- Donacia flemora2 sites
- Dytiscidae2 sites
- Dytiscus2 sites
- Gyrinus2 sites
- Ilybius2 sites
- Pterostichini2 sites
- Scarabaeidae2 sites
- Synuchus2 sites
- Agabus1 site
- Aphodius1 site
- Baridinae1 site
- Bembidiini1 site
The Paleobiology Database records 3 sites for Hydrochara libera, 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
3 references- Middle Pleistocene fossil insects from the Hirabaru Formation of Kitsuki City, Oita Prefecture, Kyushu, Japan1
- Fossil insects and their paleoenvironments of the Pliocene Tsubusagawa Formation in Ajimu Basin, Oita Prefecture, Kyushu, Japan1
- Late Pleistocene insects from the Mizozono Formation in Yoshimatsu-cho, Kagoshima Prefecture, Japan1
Each of the 3 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 Hydrochara libera
- Source
- GBIF
- Credit
- sozukk
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHydrochara through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sharp 1884)