Pentagnostus (Meragnostus) segmenta
No picture of Pentagnostus (Meragnostus) segmenta 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 Pentagnostus (Meragnostus) segmenta, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Pentagnostus (Meragnostus)PBDB
- Diet
- suspension feederPBDB, for Agnostoidea
- Life habit
- nektonicPBDB, for Agnostoidea
- Motility
- actively mobilePBDB, for Agnostoidea
- Vision
- blindPBDB, for Peronopsidae
- Environment
- marinePBDB, for Agnostoidea
Time the record covers
At least 8.3 million years on record.
The record covers at least 505.3 Mya to 497 Mya. No occurrence read is dated outside 509.7 Mya to 486.85 Mya.
14 occurrences of Pentagnostus (Meragnostus) segmenta on record, most of them in the Cambrian. 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
14 occurrences- Cambrian100%
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
5 formations
- Shallow Bay Formation · Cow Head Group5
- Wheeler Shale Formation3
- Wheeler Formation3
- Marjum Formation2
- Secret Canyon Formation1
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The named rock units Pentagnostus (Meragnostus) segmenta has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pentagnostus (Meragnostus) segmenta and its relatives
CambrianWhere Pentagnostus (Meragnostus) segmenta and its relatives were recorded in the Cambrian.
Found in the same rock
161 taxa- Ptychagnostus atavus6 sites
- Acadagnostus acadica4 sites
- Hypagnostus parvifrons4 sites
- Itagnostus interstrictus4 sites
- Peronopsis4 sites
- Modocia3 sites
- Ptychagnostus seminula3 sites
- Triplagnostus gibbus3 sites
- Acidusus occultatus2 sites
- Acrothele subsidua2 sites
- Altiocculus harrisi2 sites
- Arthropoda2 sites
- Asaphiscus wheeleri2 sites
- Baltagnostus2 sites
- Bathyuriscus2 sites
- Bathyuriscus fimbriatus2 sites
- Buccaspinea cooperi2 sites
- Chancelloria2 sites
- Choia carteri2 sites
- Choia utahensis2 sites
- Diagoniella2 sites
- Diagoniella cyathiformis2 sites
- Dicranocaris guntherorum2 sites
- Elrathia2 sites
The Paleobiology Database records 11 sites for Pentagnostus (Meragnostus) segmenta, 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
5 references- Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland5
- Some Middle Cambrian agnostoid trilobites from Western North America3
- The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)2
- Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA2
- Base of Ptychagnostus atabus Zone, candidate stratotype for base of unnamed international series2
Each of the 14 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 Pentagnostus (Meragnostus) segmenta 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 Pentagnostus (Meragnostus) segmenta, or no answer at all. This entry cannot say which.
No 3D scan of Pentagnostus (Meragnostus) segmenta 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 itPentagnostus (Meragnostus) through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Robison 1964)