Hypechinus

via iDigBio · CC0 · 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
- EchinidaePBDB
- Diet
- grazer, deposit feederPBDB, for Echinoidea
- Life habit
- epifaunalPBDB, for Echinoidea
- Motility
- actively mobilePBDB, for Echinoidea
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 10 million years on record.
The record covers at least 48 Mya to 37.71 Mya. No occurrence read is dated outside 56 Mya to 27.3 Mya.
3 occurrences of Hypechinus 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
3 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
2 formations
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The named rock units Hypechinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hypechinus and its relatives
EoceneWhere Hypechinus and its relatives were recorded in the Eocene.
Found in the same rock
38 taxa- Iheringiella patagonensis2 sites
- Isechinus praecursor2 sites
- Ostrea2 sites
- Schizaster2 sites
- Terebratella patagonica2 sites
- Carcharodon1 site
- Chlamys1 site
- Chlamys (Swiftopecten) iheringii1 site
- Cucullaea marshalli1 site
- Fagnonoa aequistriata1 site
- Gastopoda indet.1 site
- Gibbula dalli1 site
- Glycymeris camaronesia1 site
- Jorgechlamys centralis1 site
- Jorgechlamys juliana1 site
- Limopsis insolita1 site
- Linthia1 site
- Lucina1 site
- Magellania1 site
- Miomelon gracilis1 site
- Neothyris lenticularis1 site
- Opalia1 site
- Otodus auriculatus1 site
- Platypygus1 site
The Paleobiology Database records 2 sites for Hypechinus, 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 to Late Eocene invertebrate fauna from the San Julian Formation at Punta Casamayor, Santa Cruz Province, Southern Argentina2
- Note sur la géologie et la paléontologie de la Patagonie1
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 Hypechinus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows 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 itEchinidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.