Baltagnostus

Yale Peabody Museum · CC0 · via GBIF. 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
- 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 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.
54 occurrences of Baltagnostus 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
54 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
22 formations
- Conasauga Formation8
- Shallow Bay Formation · Cow Head Group7
- Huaqiao Formation6
- Aktas Formation3
- Zhangxia Formation3
- Wheeler Shale Formation2
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The named rock units Baltagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Baltagnostus and its relatives
CambrianWhere Baltagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
210 taxa- Peronopsis13 sites
- Elrathia8 sites
- Modocia7 sites
- Alokistocare4 sites
- Altiocculus americanus4 sites
- Bolaspidella4 sites
- Hyolithes4 sites
- Lingulella4 sites
- Linnarssonia4 sites
- Micromitra4 sites
- Olenoides4 sites
- Ptychagnostus seminula4 sites
- Bathyuriscus3 sites
- Brachyaspidion3 sites
- Canadaspis3 sites
- Dicellomus3 sites
- Hemirhodon3 sites
- Hyolithida3 sites
- Kyrshabaktella certa3 sites
- Manchuriella3 sites
- Onymagnostus cuneiformis3 sites
- Peronopsis curtus3 sites
- Peronopsis elongatus3 sites
- Peronopsis intermedius3 sites
The Paleobiology Database records 35 sites for Baltagnostus, 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
23 references- Ergaliev and Ergaliev, 20089
- Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland7
- Taxonomy and biostratigraphic significance of some Middle Cambrian trilobites from the Conasauga Formation in western Georgia5
- The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, northwestern Hunan, China3
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective3
- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China3
- A new, Middle Cambrian, Burgess Shale-type biota, Bolaspidella zone, Chancellor Basin, southeastern British Columbia2
- Cambrian Trilobites from the Parahio and Zanskar Valleys, Indian Himalaya2
- Yang et al., 19932
- Cambrian agnostids from the North China Platform2
- Middle Cambrian agnostids: systematics and biostratigraphy.2
- Additional Middle Cambrian trilobites from the Wheeler Shale of Utah2
Each of the 54 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. 10 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 Baltagnostus
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Baltagnostus 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 itDiplagnostidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lochmann 1944