Anomphalus
The Anomphalidae is an extinct family of fossil sea snails, marine gastropod mollusks. These are archaeogastropods which are included in the suborder Trochina. The Anomphalidae lived during the Paleozoic, from the Silurian to the Middle Permian. According to some authorities these snails belong instead to the Euomphalacea.
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
- AnomphalidaePBDB
- Diet
- detritivorePBDB, for Anomphalidae
- Life habit
- epifaunalPBDB, for Anomphalidae
- Motility
- actively mobilePBDB, for Anomphalidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 209 million years on record.
The record covers at least 410.62 Mya to 201.4 Mya. No occurrence read is dated outside 413.02 Mya to 199.5 Mya.
124 occurrences of Anomphalus on record, most of them in the Permian. 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
124 occurrences- Devonianunder 1%
- Carboniferous30%
- Permian57%
- Early Triassic3%
- Middle Triassic2%
- Late Triassic6%
- Early Jurassicunder 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
66 formations
- Road Canyon Formation5
- Flechado Formation5
- Shakhtau Reef Formation5
- Loray Formation4
- Tak Fa Formation4
- Verkhnii Uslon Formation4
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The named rock units Anomphalus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 further formations hold fewer occurrences each and are not listed. 11 occurrences have no formation on record, which is common for older literature.
Anomphalus and its relatives
PermianWhere Anomphalus and its relatives were recorded in the Permian.
Found in the same rock
2,687 taxa- Orthonema14 sites
- Apachella13 sites
- Naticopsis13 sites
- Composita12 sites
- Soleniscus12 sites
- Worthenia12 sites
- Astartella11 sites
- Goniasma11 sites
- Meekospira11 sites
- Palaeostylus11 sites
- Permophorus11 sites
- Crinoidea10 sites
- Derbyia10 sites
- Glabrocingulum10 sites
- Goniasma subangulata10 sites
- Shwedagonia elegans10 sites
- Strobeus10 sites
- Brochidium morrisi9 sites
- Catenispongia agaricus9 sites
- Dielasma9 sites
- Edmondia9 sites
- Eocamptonectes papillatus9 sites
- Gastropoda9 sites
- Glyptospira9 sites
The Paleobiology Database records 113 sites for Anomphalus, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
59 references- Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea13
- Upper Kazanian (Middle Permian) gastropods of the Volga–Urals Region9
- Middle and Upper Carboniferous gastropods from the central part of the Russian Plate. Part 3. Microdomatidae and Anomphalidae6
- Lower Permian gastropods of Shakhtau (Asselian–Sakmarian boundary beds, southern Cisuralia)5
- Permian marine paleoecology and its implications for large-scale decoupling of brachiopod and bivalve abundance and diversity during the Lopingian (Late Permian)5
- Early Permian fossil communities in northeastern Nevada and northwestern Utah5
- Permian gastropods from the Tak Fa Limestone, Nakhon Sawan, northern Thailand4
- Desmoinesian Brachiopoda and Mollusca from southwest Missouri4
- Mesozoic invertebrate faunas of Peru4
- Olenekian (Early Triassic) stratigraphy and fossil assemblages in northeastern Vietnam3
- Gastropods from the Permian of Guangxi and Yunnan Provinces, South China3
- Middle Pennsylvanian gastropods from the Flechado Formation, north-central New Mexico3
Each of the 124 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. 47 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 Anomphalus
- 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 Anomphalus 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.
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 itAnomphalidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Meek and Worthen 1866