Euomphaloidea
Euomphaloidea, originally Euomphalacea, is an extinct superfamily of marine molluscs that lived from the Early Ordovician to the Late Cretaceous, included in the Gastropoda but speculated as instead perhaps Monoplacophora.
Ghedoghedo · CC BY-SA 3.0 · 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
- EuomphalinaPBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationaryPBDB
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 435 million years on record.
The record covers at least 483.4 Mya to 48.07 Mya. No occurrence read is dated outside 486.85 Mya to 37.71 Mya.
3,453 occurrences of Euomphaloidea on record, most of them in the Ordovician. 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
3,453 occurrences- Ordovician25%
- Silurian13%
- Devonian19%
- Carboniferous18%
- Permian23%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassic1%
- Early Jurassicunder 1%
- Middle Jurassicunder 1%
- Early Cretaceousunder 1%
- Late Cretaceousunder 1%
- Eoceneunder 1%
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
759 formations
- Smithville Formation81
- Hueco Formation64
- Kopanina Formation41
- Dunleith Formation · Galena Group40
- Loray Formation · Arcturus Group38
- Kangaroo Creek Formation38
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The named rock units Euomphaloidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 735 further formations hold fewer occurrences each and are not listed. 270 occurrences have no formation on record, which is common for older literature.
Euomphaloidea and its relatives
OrdovicianWhere Euomphaloidea and its relatives were recorded in the Ordovician.
Found in the same rock
2,807 taxa- Straparollus52 sites
- Crinoidea47 sites
- Ctenodonta35 sites
- Atrypa31 sites
- Bryozoa31 sites
- Schuchertella31 sites
- Fenestella30 sites
- Leptaena30 sites
- Spirifer30 sites
- Bellerophontoidea29 sites
- Nuculites28 sites
- Modiolopsis27 sites
- Syringopora27 sites
- Camarotoechia26 sites
- Rugosa26 sites
- Chonetes25 sites
- Ostracoda25 sites
- Holopea24 sites
- Gastropoda23 sites
- Hallopora22 sites
- Rafinesquina22 sites
- Pterinea21 sites
- Cyclora20 sites
- Bivalvia19 sites
The Paleobiology Database records at least 1,123 sites for Euomphaloidea, and this reads 240 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
681 references- Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea259
- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)150
- Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota136
- The Silurian Gastropoda and Pteropoda of Gotland65
- Mitteldevonische (Givetische) Gastropoden (Mollusca) aus der Lahnmulde (suedliches Rheinisches Schiefergebirge)55
- Stratigraphy and Paleontology of the Uppermost Pennsylvanian and Lowermost Permian Rocks in Kansas53
- Koken and Perner, 192550
- Perner, 190347
- Stratigraphy of the Lower Middle Ordovician of Tazewell County, Virginia39
- Ordovician - Devonian Gastropoda from the Klamath Mountains, California38
- Silurian Reefs of Gotland35
- Carboniferous Mollusca from the Tamworth Belt, New South Wales, Australia33
Each of the 3,453 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. 669 further references are not listed. 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 Euomphaloidea
- Source
- Wikipedia/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Euomphaloidea was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- 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 itEuomphalina through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. White 1877