Hypagnostus
No picture of Hypagnostus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Hypagnostus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SpinagnostinaePBDB
- Diet
- suspension feederPBDB
- Life habit
- nektonicPBDB
- Motility
- actively mobilePBDB
- Vision
- blindPBDB, for Spinagnostidae
Time the record covers
At least 7.5 million years on record.
The record covers at least 504.5 Mya to 497 Mya. No occurrence read is dated outside 508.2 Mya to 486.85 Mya.
246 occurrences of Hypagnostus 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
246 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
41 formations
- Huaqiao Formation92
- Zhumabai Formation30
- Shallow Bay Formation · Cow Head Group19
- Aktas Formation16
- Baguamiao Formation13
- Yangliugang Formation8
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The named rock units Hypagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 further formations hold fewer occurrences each and are not listed.
Hypagnostus and its relatives
CambrianWhere Hypagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
528 taxa- Linnarssonia13 sites
- Ptychagnostus11 sites
- Tomagnostella exsculpta11 sites
- Tomagnostella sulcifera11 sites
- Kormagnostus copelandi10 sites
- Ptychagnostus atavus10 sites
- Acidusus aculeatus9 sites
- Diplorrhina8 sites
- Goniagnostus nathorsti8 sites
- Lejopyge armata8 sites
- Lejopyge laevigatus8 sites
- Modocia8 sites
- Peronopsis fallax8 sites
- Ptychagnostus punctuosus8 sites
- Lisogoragnostus mictus7 sites
- Peronopsis7 sites
- Ammagnostus laiwuensis6 sites
- Doryagnostus incertus6 sites
- Lingulella6 sites
- Linnarssonia ophirensis6 sites
- Micromitra6 sites
- Paradoxides paradoxissimus6 sites
- Pseudophalacroma ovale6 sites
- Solenopleura6 sites
The Paleobiology Database records 82 sites for Hypagnostus, 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
41 references- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China55
- Ergaliev and Ergaliev, 200846
- The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, northwestern Hunan, China28
- Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland19
- Yang et al., 199319
- Middle Cambrian stratigraphy and trilobite fauna of Taoyuan, NW Hunan9
- Middle Cambrian agnostids: systematics and biostratigraphy.9
- Middle Cambrian agnostoids and trilobites from the Lower Allochthon, Swedish Caledonides6
- The Cambrian trilobites of western Zhejiang5
- The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)3
- A highly diverse trilobite fauna with Avalonian affinities from the Middle Cambrian Acidusus atavus Zone (Drumian Stage) of Bornholm, Denmark3
- Cambrian trilobites from Chuxian-Quanjiao region, Anhui3
Each of the 246 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. 29 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 Hypagnostus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Hypagnostus, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSpinagnostinae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jaeckel 1909