Ammagnostus
No picture of Ammagnostus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Ammagnostus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AmmagnostidaePBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
Time the record covers
At least 9.3 million years on record.
The record covers at least 504.5 Mya to 495.2 Mya. No occurrence read is dated outside 506.5 Mya to 486.85 Mya.
145 occurrences of Ammagnostus 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
145 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
25 formations
- Huaqiao Formation56
- Zhumabai Formation41
- Aktas Formation12
- Machari Formation · Yongwol Group5
- Spurs Formation · Mariner Group4
- Holm Dal Formation · Tavsens Iskappe Group2
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The named rock units Ammagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 2 occurrences have no formation on record, which is common for older literature.
Ammagnostus and its relatives
CambrianWhere Ammagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
400 taxa- Tomagnostella exsculpta8 sites
- Linnarssonia6 sites
- Acmarhachis typicalis5 sites
- Hypagnostus parvifrons5 sites
- Lingulella5 sites
- Modocia5 sites
- Proagnostus bulbus5 sites
- Tomagnostella sulcifera5 sites
- Diplagnostus pyriformis4 sites
- Goniagnostus nathorsti4 sites
- Hypagnostus truncatus4 sites
- Peronopsis fallax4 sites
- Talbotinella4 sites
- Anabarochilina australis3 sites
- Carrosella3 sites
- Catillicephalina glasgowensis3 sites
- Clavagnostus spinosus3 sites
- Doremataspis3 sites
- Doremataspis contracta3 sites
- Elrathia3 sites
- Henadoparia integra3 sites
- Hypagnostus brevifrons3 sites
- Lejopyge laevigatus3 sites
- Linnarssonia captiosa3 sites
The Paleobiology Database records 25 sites for Ammagnostus, 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
26 references- Ergaliev and Ergaliev, 200853
- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China45
- The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, northwestern Hunan, China8
- Upper Cambrian agnostoid trilobites from the Machari Formation,Yongwol, Korea5
- An 'Acmarhachis typicalis' zone trilobite fauna from the Cambrian of Northern Victoria Land, Antarctica4
- The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)3
- Cambrian agnostids from the North China Platform3
- Late Middle Cambrian trilobites from St Valentines Peak and Native Track Tier, northwestern Tasmania2
- Middle Cambrian stratigraphy and trilobite fauna of Taoyuan, NW Hunan2
- The Cambrian trilobites of western Zhejiang2
- Molluscs of the Holm Dal Formation (late Middle Cambrian), central North Greenland2
- Rozova, 19642
Each of the 145 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. 14 further references are not listed. 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 Ammagnostus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Ammagnostus, or no answer at all. This entry cannot say which.
No 3D scan of Ammagnostus 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 itAmmagnostidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Opik 1967