Oligopygus haldermani

via iDigBio · 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
- OligopygusPBDB
- Diet
- detritivorePBDB, for Clypeasteroida
- Life habit
- semi-infaunalPBDB, for Clypeasteroida
- Motility
- slow-movingPBDB, for Clypeasteroida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 3.8 million years on record.
The record covers at least 37.71 Mya to 33.9 Mya. No occurrence read is dated outside 41.03 Mya to 23.04 Mya.
11 occurrences of Oligopygus haldermani 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
11 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
5 formations
- Crystal River Limestone Formation · Ocala Group5
- Ocala Formation2
- Moodys Branch Formation1
- Williston Limestone Formation · Ocala Group1
- Inglis Limestone Formation · Ocala Group1
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The named rock units Oligopygus haldermani 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.
Oligopygus haldermani and its relatives
EoceneWhere Oligopygus haldermani and its relatives were recorded in the Eocene.
Found in the same rock
130 taxa- Agassizia4 sites
- Amusium3 sites
- Cassidulus (Paralampas) lyelli3 sites
- Echinocyamus vaughani3 sites
- Eupatagus3 sites
- Oligopygus wetherbyi3 sites
- Ostrea3 sites
- Vertebrata3 sites
- Weisbordella3 sites
- Bellatara2 sites
- Calyptraea (Trochita) aperta2 sites
- Chlamys2 sites
- Durhamella ocalana2 sites
- Echinolampas2 sites
- Eupatagus (Plagiobrissus) curvus2 sites
- Goniasteridae2 sites
- Pecten (Pecten) perplanus2 sites
- Peronella crustuloides2 sites
- Plagiobrissus2 sites
- Rhyncholampas2 sites
- Xenophora2 sites
- Agaronia1 site
- Agassizia conradi1 site
- Agnocardia claibornense1 site
The Paleobiology Database records 11 sites for Oligopygus haldermani, 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
6 references- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region3
- Diversity patterns and biostratigraphy of Cenozoic echinodems from Florida2
- Summary of the geology of Florida and a guidebook to the classic exposures2
- The Mesozoic and Cenozoic Echinodermata of the United States2
- Los Equiodermos fosiles de Cuba1
- The Age of the Ocala Limestone1
Each of the 11 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 content1

Picture of Oligopygus haldermani
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Oligopygus haldermani was found in Smithsonian Open Access and Sketchfab.
MorphoSource 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 itOligopygus through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1850)