Nahannagnostus
No picture of Nahannagnostus 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 Nahannagnostus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DiplagnostidaePBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
- Vision
- blindPBDB, for Diplagnostidae
Time the record covers
At least 1.8 million years on record.
The record covers at least 497 Mya to 495.2 Mya. No occurrence read is dated outside 500.5 Mya to 486.85 Mya.
43 occurrences of Nahannagnostus 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
43 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
7 formations
- Deadwood Formation13
- Huaqiao Formation9
- Rabbitkettle Formation9
- Machari Formation · Yongwol Group5
- Zhumabai Formation4
- Shallow Bay Formation · Cow Head Group2
Loading coastlines…
The named rock units Nahannagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Nahannagnostus and its relatives
CambrianWhere Nahannagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
79 taxa- Pseudagnostina douvillei18 sites
- Kingstonia walcotti17 sites
- Coosia alethes12 sites
- Kormagnostus seclusus12 sites
- Crepicephalus11 sites
- Crepicephalus buttsi11 sites
- Blountia10 sites
- Tricrepicephalus coria10 sites
- Uncaspis9 sites
- Agnostogonus incognitus8 sites
- Crepicephalus auratus7 sites
- Arcuolimbus convexus6 sites
- Coosina ariston6 sites
- Hadragnostus modestus6 sites
- Kingstonia6 sites
- Dresbachia5 sites
- Kormagnostus5 sites
- Tricrepicephalus texanus5 sites
- Cedaria minor4 sites
- Coosella4 sites
- Glaphyraspis4 sites
- Menomonia4 sites
- Nahannicephalus4 sites
- Terranovella dorsalis4 sites
The Paleobiology Database records 24 sites for Nahannagnostus, 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
8 references- Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota13
- Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada9
- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China8
- Upper Cambrian agnostoid trilobites from the Machari Formation,Yongwol, Korea5
- Ergaliev and Ergaliev, 20084
- Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland2
- Corynexochida, Lichida and Asaphida1
- Biostratigrafiya i trilobity verkhnego Kembriya i nizhnego Ordovika severo-zapada Sibirskoy Platformy [Biostratigraphy and trilobites of the Upper Cambrian and Lower Ordovician of the northwestern Siberian platform]1
Each of the 43 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 Nahannagnostus 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 Nahannagnostus, or no answer at all. This entry cannot say which.
No 3D scan of Nahannagnostus 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 itDiplagnostidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pratt 1992