Pachyoncus crassus
No picture of Pachyoncus crassus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pachyoncus crassus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PachyoncusPBDB
Time the record covers
At most 3.3 million years on record.
Every occurrence read is dated to somewhere between 168.6 Mya and 165.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Pachyoncus crassus on record, most of them in the Middle Jurassic. 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
2 occurrences- Middle Jurassic100%
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
1 formation
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The named rock units Pachyoncus crassus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pachyoncus crassus and its relatives
Middle JurassicWhere Pachyoncus crassus and its relatives were recorded in the Middle Jurassic.
Found in the same rock
15 taxa- Archaeocenosphaera1 site
- Gorgansium1 site
- Gorgansium silviesense1 site
- Hsuum lupheri1 site
- Hsuum robustum1 site
- Lanubus1 site
- Lupherium nitidum1 site
- Pachyoncus tumidus1 site
- Pachyoncus varius1 site
- Pantanellium1 site
- Praeparvicingula burnsensis1 site
- Praeparvicingula grantensis1 site
- Triactoma1 site
- Xiphostylus1 site
- Zartus1 site
The Paleobiology Database records 1 site for Pachyoncus crassus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
2 references- A Middle Jurassic radiolarian fauna from South Fork Member of Snowshoe Formation, east-central Oregon1
- Upper Triassic and Jurassic Pantanelliinae from California, Oregon, and British Columbia1
Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Pachyoncus crassus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pachyoncus crassus, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPachyoncus through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pessagno and Blome 1980