Biplex
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
- RanellidaePBDB
- Diet
- carnivorePBDB, for Ranellidae
- Life habit
- epifaunalPBDB, for Ranellidae
- Motility
- actively mobilePBDB, for Ranellidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 65 million years on record.
The record covers at least 66 Mya to 774 ka. No occurrence read is dated outside 72.2 Mya to 129 ka.
10 occurrences of Biplex on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
10 occurrences- Late Cretaceous20%
- Miocene50%
- Pleistocene30%
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
7 formations
- Opoka Formation2
- Shinzato Formation · Shimajiri Group2
- Shimajiri Formation1
- Gellibrand Formation1
- Fyansford Formation1
- Quilon Limestone Formation1
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The named rock units Biplex 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.
Biplex and its relatives
MioceneWhere Biplex and its relatives were recorded in the Miocene.
Found in the same rock
278 taxa- Gemmula4 sites
- Conus3 sites
- Aloconatica niasensis2 sites
- Bursa corrugata2 sites
- Ficus2 sites
- Lyria2 sites
- Mammilla melanostoma2 sites
- Natica vitellus2 sites
- Semicassis bisulcata2 sites
- Terebra2 sites
- Tonna2 sites
- Adusta pulchella1 site
- Agaronia pupa1 site
- Alatotrochus rubescens1 site
- Aliculastrum protocylindrica1 site
- Amalda (Baryspira)1 site
- Anachis (Costoanachis)1 site
- Ancilla (Turrancilla)1 site
- Apollon morrisi1 site
- Aporrhais1 site
- Architectonica (Architectonica) maxima1 site
- Architectonica (Pseudotorinia) euprepes1 site
- Architectonica affinis1 site
- Arrhoges1 site
The Paleobiology Database records 5 sites for Biplex, 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- Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits3
- Maastrichtian non-cephalopod mollusks: Scaphopoda, Gastropoda and Bivalvia of the Middle Vistula Valley, central Poland2
- Molluscan biogeography and biostratigraphy of the Tertiary of southeastern Australia2
- Oligocene and Early Miocene gastropods from Kutch (NW India) document an early biogeographic switch from Western Tethys to Indo-Pacific1
- Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae)1
- On the ages of certain Upper Tertiary beds of Peninsula India and Ceylon1
Each of the 10 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 Biplex
- Source
- Wikipedia/Commons
- Credit
- Jan Delsing
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
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 itRanellidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Perry 1811)