Plagioptychus
via iDigBio · CC BY · 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
- PlagioptychidaePBDB
- Diet
- suspension feederPBDB, for Hippuritida
- Life habit
- intermediate-level epifaunal, gregariousPBDB, for Hippuritida
- Motility
- stationary, attachedPBDB, for Hippuritida
- Vision
- blindPBDB, for Bivalvia
- Environment
- marinePBDB, for Hippuritida
Time the record covers
At least 33 million years on record.
The record covers at least 93.9 Mya to 60.9 Mya. No occurrence read is dated outside 100.5 Mya to 57.5 Mya.
226 occurrences of Plagioptychus on record, most of them in the Late Cretaceous. 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
226 occurrences- Late Cretaceous54%
- Paleocene46%
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
27 formations
- Denver Formation36
- Nacimiento Formation31
- Guinea Corn Formation15
- North Horn Formation8
- Black Peaks Formation · Tornillo Group7
- Ferris Formation6
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The named rock units Plagioptychus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 further formations hold fewer occurrences each and are not listed. 79 occurrences have no formation on record, which is common for older literature.
Plagioptychus and its relatives
Late CretaceousWhere Plagioptychus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
682 taxa- Periptychus coarctatus55 sites
- Periptychus carinidens36 sites
- Vaccinites31 sites
- Biradiolites22 sites
- Hippurites19 sites
- Radiolites18 sites
- Tricentes subtrigonus18 sites
- Tetraclaenodon puercensis17 sites
- Anisonchus sectorius15 sites
- Psittacotherium multifragum15 sites
- Mioclaenus turgidus14 sites
- Promioclaenus acolytus14 sites
- Promioclaenus lemuroides12 sites
- Protoselene opisthacus12 sites
- Durania11 sites
- Periptychus11 sites
- Protictis haydenianus11 sites
- Chriacus pelvidens10 sites
- Ectoconus ditrigonus10 sites
- Hippuritella10 sites
- Mixodectes malaris10 sites
- Praeradiolites10 sites
- Chriacus baldwini9 sites
- Crocodylia9 sites
The Paleobiology Database records 151 sites for Plagioptychus, 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
70 references- Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction27
- Early Paleocene vertebrates of the Denver Basin, Colorado14
- Paleocene vertebrate paleontology of the San Juan Basin, New Mexico13
- Synonymies and reidentifications of North American fossil mammals12
- Unpublished data on Cretaceous-Paleocene molluscan assemblages11
- Turonian-Campanian Plagioptychidae (Mollusca: Hippuritoidea) of Gosau-type rudist formations of the Alps (Austria)10
- Development of rudist lithosomes in the Coniacian-Lower Campanian carbonate shelves of central-southern Italy: high-energy vs low-energy settings8
- Upper Cretaceous rudists distribution in the Mediterranean Tethys: comparison between platforms from Spain and South Central Italy7
- A new important record of earliest Cenozoic mammalian history: geologic setting, Multituberculata, and Peradectia6
- The beginning of the age of mammals in the San Juan Basin, New Mexico; biostratigraphy and evolution of Paleocene mammals of the Nacimiento Formation6
- Coniacian-Maastrichtian of the Tremp Area (South Central Pyrenees)6
- Late Maastrichtian rudist and coral assemblages from the Central Inlier, Jamaica: towards an event stratigraphy for shallow-water Caribbean limestones5
Each of the 226 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. 58 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 content2
Picture of Plagioptychus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial-ShareAlike
- Commercial use
- the licence does not allow it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPlagioptychidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matheron 1842