Diplagnostidae
Apokryltaros · CC BY-SA 4.0 · 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
- CondylopygoideaPBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
- Vision
- blindPBDB
Time the record covers
At least 28 million years on record.
The record covers at least 505.3 Mya to 477.1 Mya. No occurrence read is dated outside 509.7 Mya to 468 Mya.
1,186 occurrences of Diplagnostidae 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
1,186 occurrences- Cambrian98%
- Ordovician2%
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
120 formations
- Bestogai Formation151
- Zhumabai Formation143
- Huaqiao Formation129
- Chatsworth Formation69
- Machari Formation · Yeongwol Group68
- Huayansi Formation56
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The named rock units Diplagnostidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 96 further formations hold fewer occurrences each and are not listed. 39 occurrences have no formation on record, which is common for older literature.
Diplagnostidae and its relatives
CambrianWhere Diplagnostidae and its relatives were recorded in the Cambrian.
Found in the same rock
908 taxa- Pseudagnostus49 sites
- Pseudagnostina douvillei37 sites
- Pseudagnostus josephus28 sites
- Pseudagnostus communis26 sites
- Baltagnostus25 sites
- Kingstonia walcotti25 sites
- Blountia24 sites
- Kormagnostus seclusus24 sites
- Coosia alethes23 sites
- Peronopsis23 sites
- Crepicephalus21 sites
- Nahannagnostus nganasanicus20 sites
- Tricrepicephalus coria16 sites
- Coosina ariston15 sites
- Kingstonia15 sites
- Lingulella15 sites
- Modocia15 sites
- Acmarhachis acuta14 sites
- Crepicephalus buttsi14 sites
- Elrathia14 sites
- Homagnostus14 sites
- Tomagnostella exsculpta13 sites
- Uncaspis12 sites
- Crepicephalus auratus11 sites
The Paleobiology Database records 383 sites for Diplagnostidae, and this reads 240 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
145 references- Ergaliev and Ergaliev, 2008309
- Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China79
- Late Cambrian trilobites from the Chatsworth Limestone, western Queensland69
- Upper Cambrian agnostoid trilobites from the Machari Formation,Yongwol, Korea66
- The Cambrian trilobites of western Zhejiang49
- Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota36
- Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada36
- Proposed GSSP for the base of Cambrian Stage 9, coinciding with the first appearance of Agnostotes orientalis, at Duibian, Zhejiang, China26
- The Upper Cambrian of the Chopko River section, Norilsk region, northwestern Siberian Platform: stratigraphy and trilobites23
- Upper Cambrian biostratigraphy and trilobite faunas of the Cili-Taoyuan area, northwestern Hunan, China18
- The Khos-Nelege section of the Ogon'or Formation: a potential candidate for the GSSP of stage 10, Cambrian System17
- Cambrian agnostids from the North China Platform15
Each of the 1,186 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. 133 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 Diplagnostidae
- Source
- Wikidata/Commons
- Credit
- Apokryltaros
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Diplagnostidae 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 itCondylopygoidea through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Whitehouse 1936