Gerastos simus
No picture of Gerastos simus 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 Gerastos simus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GerastosPBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Proetidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 432.9 Mya and 426.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Gerastos simus on record, most of them in the Silurian. 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
3 occurrences- Silurian100%
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 Gerastos simus 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.
Gerastos simus and its relatives
SilurianWhere Gerastos simus and its relatives were recorded in the Silurian.
Found in the same rock
33 taxa- Winiskia2 sites
- Acidaspis1 site
- Atrypa reticularis1 site
- Atrypoidea1 site
- Calymene1 site
- Ceratocephala1 site
- Contracheirurus errator1 site
- Cyphoproetus1 site
- Dicranogmus skinneri1 site
- Encrinurus1 site
- Favosites1 site
- Hedstroemia1 site
- Interproetus1 site
- Ketophyllum1 site
- Kettneraspis1 site
- Kosovopeltis allaarti1 site
- Leptaena rhomboidalis1 site
- Ligiscus1 site
- Nonix sauroter1 site
- Opsypharus1 site
- Platyostoma1 site
- Poleumita1 site
- Proetinae1 site
- Proetus1 site
The Paleobiology Database records 3 sites for Gerastos simus, 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
2 references- Proetid trilobites from the Silurian (Wenlock-Ludlow) of the Cape Phillips Formation, Canadian Arctic Archipelago2
- Silurian trilobites from Hall Land and Nyeboe Land, western Greenland1
Each of the 3 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 Gerastos simus 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 Gerastos simus, or no answer at all. This entry cannot say which.
No 3D scan of Gerastos simus 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 itGerastos through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Lane 1984)