Glyptagnostus

Allison R. Palmer · Public Domain · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- GlyptagnostinaePBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
Time the record covers
At most 52 million years on record.
Every occurrence read is dated to somewhere between 538.8 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
96 occurrences of Glyptagnostus 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
96 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
15 formations
- Huaqiao Formation40
- Zhumabai Formation14
- Huayansi Formation11
- Chopko Formation8
- Conasauga Formation4
- Nopah Formation4
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The named rock units Glyptagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Glyptagnostus and its relatives
CambrianWhere Glyptagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
55 taxa- Innitagnostus inexpectans8 sites
- Opisthotreta6 sites
- Aspidagnostus rugosus5 sites
- Eugonocare (Olenaspella) separatum4 sites
- Listroa toxoura4 sites
- Pseudagnostus4 sites
- Aphelaspis brachyphasis3 sites
- Aphelaspis haguei3 sites
- Aphelaspis subditus3 sites
- Glaphyraspis parva3 sites
- Homagnostus obesus3 sites
- Olenaspella regularis3 sites
- Acmarhachis acuta2 sites
- Acmarhachis acutus2 sites
- Angulotreta2 sites
- Aphelaspinid indet.2 sites
- Aphelaspis2 sites
- Cheilocephalus brevilobus2 sites
- Pseudagnostina douvillei2 sites
- <Agnostid>1 site
- Acmarhachis typicalis1 site
- Agnostus pisiformis1 site
- Aphelaspis australis1 site
- Aphelaspis buttsi1 site
The Paleobiology Database records 22 sites for Glyptagnostus, 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
17 references- Corynexochida, Lichida and Asaphida20
- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China16
- Ergaliev and Ergaliev, 200814
- The Cambrian trilobites of western Zhejiang11
- The Upper Cambrian of the Chopko River section, Norilsk region, northwestern Siberian Platform: stratigraphy and trilobites8
- Glyptagnostus and associated trilobites in the United States8
- Upper Cambrian biostratigraphy and trilobite faunas of the Cili-Taoyuan area, northwestern Hunan, China4
- Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada3
- The Upper Cambrian faunas of Norway with descriptions of non-olenid invertebrate fossils3
- Occurrence of Glyptagnostus stolidotus Opik, 1961 (Trilobita, Late Cambrian) in the Machari Formation of Korea2
- Late Cambrian (Furongian; Paibian, Steptoean) agnostoid arthropods from the Cow Head Group, western Newfoundland1
- Upper Cambrian trilobite biostratigraphy and taphonomy at Kakeled on Kinnekulle, Västergötland, Sweden1
Each of the 96 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. 5 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 content1

Picture of Glyptagnostus
- Source
- Wikidata/Commons
- Credit
- Allison R. Palmer
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Glyptagnostus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itGlyptagnostinae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Whitehouse 1936