Pachydictya robusta
No picture of Pachydictya robusta 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 Pachydictya robusta, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PachydictyaPBDB
- Diet
- suspension feederPBDB, for Stenolaemata
- Life habit
- epifaunalPBDB, for Bryozoa
- Motility
- stationary, attachedPBDB, for Stenolaemata
- Vision
- blindPBDB, for Stenolaemata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 8.7 million years on record.
Every occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Pachydictya robusta on record, most of them in the Ordovician. 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
12 occurrences- Ordovician100%
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
2 formations
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The named rock units Pachydictya robusta has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pachydictya robusta and its relatives
OrdovicianWhere Pachydictya robusta and its relatives were recorded in the Ordovician.
Found in the same rock
23 taxa- Batostoma8 sites
- Carabocrinus8 sites
- Cleiocrinus8 sites
- Columnaria8 sites
- Coronocystis angulatus8 sites
- Diabolocrinus8 sites
- Dystactospongia8 sites
- Girvanella8 sites
- Lichenaria8 sites
- Receptaculites8 sites
- Solenopora8 sites
- Stromatocerium rugosum8 sites
- Dinorthis atavoides4 sites
- Eospongia4 sites
- Glauconome4 sites
- Homotelus elongatus4 sites
- Maclurites magnus4 sites
- Monotrypa4 sites
- Rostricellula pristina4 sites
- Sowerbyites triseptatus4 sites
- Nicholsonella3 sites
- Cleirocrinus cf. tessellatus1 site
- Nicholsonells sp.1 site
The Paleobiology Database records 12 sites for Pachydictya robusta, 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
1 referenceEach of the 12 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Pachydictya robusta 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 Pachydictya robusta, or no answer at all. This entry cannot say which.
No 3D scan of Pachydictya robusta 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPachydictya through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich 1882