Primicaris larvaformis

Qohelet12 · 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
- PrimicarisPBDB
- Diet
- omnivorePBDB, for Primicaris
- Life habit
- nektobenthicPBDB, for Primicaris
- Motility
- passively mobilePBDB, for Primicaris
- Vision
- blindPBDB, for Primicaris
Time the record covers
At least 1.5 million years on record.
The record covers at least 516 Mya to 514.5 Mya. No occurrence read is dated outside 521 Mya to 506.5 Mya.
7 occurrences of Primicaris larvaformis 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
7 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
2 formations
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The named rock units Primicaris larvaformis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Primicaris larvaformis and its relatives
CambrianWhere Primicaris larvaformis and its relatives were recorded in the Cambrian.
Found in the same rock
160 taxa- Cambrorhytium6 sites
- Chuandianella ovata5 sites
- Cricocosmia jinningensis5 sites
- Heliomedusa orienta5 sites
- Isoxys auritus5 sites
- Kunmingella douvillei5 sites
- Leanchoilia illecebrosa5 sites
- Mafangscolex sinensis5 sites
- Misszhouia longicaudata5 sites
- Arthropoda4 sites
- Naraoia spinosa4 sites
- Problematica4 sites
- Sicyophorus rara4 sites
- Amplectobelua symbrachiata3 sites
- Cardiodictyon catenulum3 sites
- Choiaella radiata3 sites
- Corynetis brevis3 sites
- Eoglossa chengjiangensis3 sites
- Eoredlichia intermediata3 sites
- Isoxys curvirostratus3 sites
- Isoxys paradoxus3 sites
- Kunmingella3 sites
- Lingulellotreta malongensis3 sites
- Luolishania3 sites
The Paleobiology Database records 7 sites for Primicaris larvaformis, 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
3 references- Taphonomy and Palaeoecology of the Early Cambrian Chengjiang Biota from Eastern Yunnan, China5
- Cambrian Burgess Shale-type Lagerstäten in South China: Distribution and significance1
- Lower Cambrian Burgess Shale-type fossil associations of South China1
Each of the 7 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 content1

Picture of Primicaris larvaformis
- Source
- Wikidata/Commons
- Credit
- Qohelet12
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Primicaris larvaformis 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 itPrimicaris through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Zhang et al. 2003