Demirastrites
No picture of Demirastrites 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 Demirastrites, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MonograptidaePBDB
- Diet
- suspension feederPBDB, for Graptoloidea
- Life habit
- planktonicPBDB, for Graptoloidea
- Motility
- passively mobilePBDB, for Graptoloidea
- Vision
- blindPBDB, for Graptolithina
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 443.1 Mya and 432.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
17 occurrences of Demirastrites 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
17 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
9 formations
- Lower Jenhochiao Formation4
- Derwenlas Formation2
- Zelkovice Formation1
- Bulong Formation1
- Heijianshan Formation1
- Lientan Formation1
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The named rock units Demirastrites 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.
Demirastrites and its relatives
SilurianWhere Demirastrites and its relatives were recorded in the Silurian.
Found in the same rock
115 taxa- Monograptus9 sites
- Pristiograptus6 sites
- Petalolithus5 sites
- Oktavites4 sites
- Rastrites4 sites
- Streptograptus4 sites
- Campograptus lobiferus3 sites
- Glyptograptus3 sites
- Monograptus priodon3 sites
- Oktavites spiralis3 sites
- Climacograptus2 sites
- Climacograptus scalaris2 sites
- Dictyonema2 sites
- Leonaspis2 sites
- Metaclimacograptus hughesi2 sites
- Orthograptus2 sites
- Retiolites2 sites
- Skenidioides2 sites
- Acernaspis1 site
- Aegiria1 site
- Akidograptus1 site
- Antirhynchonella1 site
- Atavograptus atavus1 site
- Atrypina1 site
The Paleobiology Database records 10 sites for Demirastrites, 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
4 references- Correlation of the Silurian rocks of China12
- On the Graptolite Schists Formation (Silurian–Lower Devonian) in the Carpatho–Balkanides of eastern Serbia2
- A bibliographic index of British graptolites (Graptoloidea)2
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)1
Each of the 17 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 Demirastrites 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 Demirastrites, or no answer at all. This entry cannot say which.
No 3D scan of Demirastrites 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMonograptidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.