Platysiagum
Platysiagum is an extinct genus of prehistoric bony fish belonging to the family Platysiagidae. Fossils are known from the Middle Triassic of China, Italy and Switzerland, and the Early Jurassic of England.
No picture of Platysiagum was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Platysiagum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PeltopleuridaePBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 41 million years on record.
The record covers at least 241.464 Mya to 199.5 Mya. No occurrence read is dated outside 243.43 Mya to 192.9 Mya.
10 occurrences of Platysiagum on record, most of them in the Middle Triassic. 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 occurrencesThese 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
3 formations
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The named rock units Platysiagum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Platysiagum and its relatives
Middle TriassicWhere Platysiagum and its relatives were recorded in the Middle Triassic.
Found in the same rock
136 taxa- Meridensia meridensis4 sites
- Peltopleurus lissocephalus4 sites
- Ptycholepis barboi4 sites
- Ctenognathichthys bellottii3 sites
- Luganoia lepidosteoides3 sites
- Squaloraja polyspondyla3 sites
- Actinopterygii2 sites
- Aetheodontus besanensis2 sites
- Caturus ferox2 sites
- Caturus heterurus2 sites
- Cephaloxenus2 sites
- Cephaloxenus macropterus2 sites
- Chondrosteus acipenseroides2 sites
- Coccolepis liassicus2 sites
- Dapedium colei2 sites
- Dapedium granulatum2 sites
- Dapedium magnevillei2 sites
- Dapedium milloti2 sites
- Dapedium politum2 sites
- Dapedium radiatum2 sites
- Dorsetichthys bechei2 sites
- Eoeugnathus megalepis2 sites
- Eosemionotus2 sites
- Eugnathus minor2 sites
The Paleobiology Database records 10 sites for Platysiagum, 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- Basal ray-finned fishes (Osteichthyes; Actinopterygii) from the Middle Triassic of Monte San Giorgio (Canton Tessin, Switzerland)3
- An overview of the Middle Triassic actinopterygians from Alcover, Mont-ral and El Pinetell (Catalonia, Spain)2
- Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III2
- A hiatus obscures the early evolution of modern lineages of bony fishes1
- A new microvertebrate fauna from the Middle Hettangian (Early Jurassic) of Fontenoille (Province of Luxembourg, south Belgium)1
- Brough, 19391
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 content0
No picture of Platysiagum was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Platysiagum, or no answer at all. This entry cannot say which.
No 3D scan of Platysiagum 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
- Source
- Wikipedia, “Platysiagum”
- 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 itPeltopleuridae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Woodward 1895