Orthosurcula regularis

Natural History Museum Rotterdam · CC BY 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
- OrthosurculaPBDB
- Diet
- carnivorePBDB, for Costellariidae
- Life habit
- epifaunalPBDB, for Costellariidae
- Motility
- actively mobilePBDB, for Costellariidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 33.9 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
16 occurrences of Orthosurcula regularis on record, most of them in the Oligocene. 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
16 occurrences- Oligocene100%
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
9 formations
- Falun de Morigny Formation3
- Falun de Pierrefitte Formation2
- Branden Clay Formation2
- Upper Cyrena Formation1
- Conglomerat de Pierrefitte Formation1
- Linz Formation1
Loading coastlines…
The named rock units Orthosurcula regularis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Orthosurcula regularis and its relatives
OligoceneWhere Orthosurcula regularis and its relatives were recorded in the Oligocene.
Found in the same rock
390 taxa- Glycymeris10 sites
- Granulolabium plicatum8 sites
- Aporrhais speciosa7 sites
- Cordiopsis incrassata7 sites
- Cyclocardia7 sites
- Diplodonta7 sites
- Parvicardium7 sites
- Antalis6 sites
- Arcopagia6 sites
- Bayania semidecussata6 sites
- Bittium6 sites
- Calyptraea6 sites
- Ctena6 sites
- Cytherea (Callista) splendida6 sites
- Glycymeris (Glycymeris) obovata6 sites
- Habecardium tenuisulcatum6 sites
- Keepingia gossardii6 sites
- Lentidium (Ajanssenium) nitidum6 sites
- Lucina6 sites
- Paralucinella undulata6 sites
- Polinices6 sites
- Saxolucina6 sites
- Turboella turbinata6 sites
- Varicorbula gibba6 sites
The Paleobiology Database records 12 sites for Orthosurcula regularis, 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
7 references- Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne)6
- The molluscan fauna of the late Oligocene Branden Clay, Denmark4
- Mollusc fauna of the Hungarian Upper Oligocene (Egerian)2
- A late Oligocene molluscan fauna and Oligocene coastal outcrops from Vilsund, NW Denmark1
- Late Oligocene gastropods and bivalves from the Lower and Upper Austrian Molasse Basin1
- Predation by naticid gastropods on late Oligocene (Egerian) molluscs collected from Wind Brickyard, Eger, Hungary1
- Lithostratigraphical and biostratigraphical subdivision of Tertiary deposits (Oligocene-Pliocene) in the Winterswijk-Almelo region (eastern part of the Netherlands)1
Each of the 16 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 Orthosurcula regularis
- Source
- GBIF
- Credit
- Natural History Museum Rotterdam
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Orthosurcula regularis was found in MorphoSource and Sketchfab.
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 itOrthosurcula through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Koninck 1837)