Gyrineum
Gyrineum is a genus of predatory sea snails, marine gastropod mollusks in the family Cymatiidae.

Jan Delsing · Public Domain · 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
- RanellinaePBDB
- Diet
- carnivorePBDB, for Ranellidae
- Life habit
- epifaunalPBDB, for Ranellidae
- Motility
- actively mobilePBDB, for Ranellidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 72 million years on record.
The record covers at least 72.2 Mya to 11.7 ka. No occurrence read is dated outside 83.6 Mya to 0 Mya.
113 occurrences of Gyrineum on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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
113 occurrences- Late Cretaceous3%
- Paleoceneunder 1%
- Eocene11%
- Oligocene3%
- Miocene44%
- Pliocene26%
- Pleistocene12%
- Holoceneunder 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
40 formations
- Togopi Formation9
- Termofourà Formation9
- Baldissero Formation8
- Tejon Formation5
- Gaj Formation4
- Quimper Formation4
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The named rock units Gyrineum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 24 occurrences have no formation on record, which is common for older literature.
Gyrineum and its relatives
MioceneWhere Gyrineum and its relatives were recorded in the Miocene.
Found in the same rock
2,113 taxa- Conus19 sites
- Nassarius18 sites
- Natica17 sites
- Turritella17 sites
- Chlamys16 sites
- Gemmula15 sites
- Anadara13 sites
- Architectonica12 sites
- Cerithium12 sites
- Neverita josephinia12 sites
- Polinices11 sites
- Turricula11 sites
- Amusium10 sites
- Cardium10 sites
- Oliva10 sites
- Persististrombus bonellii10 sites
- Phos10 sites
- Turris10 sites
- Xenophora deshayesi10 sites
- Fusinus9 sites
- Ostrea9 sites
- Sassia9 sites
- Terebra9 sites
- Thericium9 sites
The Paleobiology Database records 58 sites for Gyrineum, 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
51 references- Lower to Middle Miocene Mollusc assemblages from the Torino Hills (NW Italy): Synthesis of new data and chronostratigraphical arrangement16
- Preliminary notes on fossil records of East Malaysia and Brunei9
- Oligocene and Early Miocene gastropods from Kutch (NW India) document an early biogeographic switch from Western Tethys to Indo-Pacific7
- Neogene and Quaternary Mollusca from the Makran Coast, Pakistan5
- Megafaunal zones of the Oligocene of northwestern Washington5
- Biozonation of the Neogene invertebrate megafauna of the Hellenic area4
- Age refinement of the Sonde molluscan fauna, East Java, Indonesia3
- Age and stratigraphic significance for Lyellian correlation of the fauna of the Vigo Formation, Luzon, Phillipines3
- Les Mesogastropoda Fossiles du Cenozoïque étranger des Collections de L'Institute Royale des Sciences Naturelles de Belgique3
- Fauna and stratigraphic relations of the Tejon Eocene at the type locality in Kern County, California3
- Mollusken aus posttertiären Schichten von Celebes3
- The Early Pliocene Gastropoda (Mollusca) of Estepona, Southern Spain. Part 5: Tonnoidea, Ficoidea2
Each of the 113 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. 39 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 Gyrineum
- Source
- Wikipedia/Commons
- Credit
- Jan Delsing
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Gyrineum 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
- Source
- Wikipedia, “Gyrineum”
- 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 itRanellinae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1807