Peachella
Peachella is an extinct genus of trilobites, fossil marine arthropods, with species of average size. It lived during the Toyonian stage, 516 to 513 million years ago, in what is today the southwestern United States. It can easily be distinguished from other trilobites by its club-like genal spines.
Apokryltaros · CC BY-SA 4.0 · via Wikipedia/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
- OlenellidaePBDB
- Diet
- deposit feederPBDB, for Redlichiida
- Life habit
- low-level epifaunalPBDB, for Redlichiida
- Motility
- fast-movingPBDB, for Redlichiida
- Vision
- well-developedPBDB, for Olenellidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 5.6 million years on record.
Every occurrence read is dated to somewhere between 515.3 Mya and 509.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
21 occurrences of Peachella 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
21 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
3 formations
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The named rock units Peachella has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Peachella and its relatives
CambrianWhere Peachella and its relatives were recorded in the Cambrian.
Found in the same rock
24 taxa- Olenellus6 sites
- Olenellus nevadensis6 sites
- Bristolia5 sites
- Paedeumias transitans5 sites
- Bristolia anteros4 sites
- Bristolia fragilis3 sites
- Olenellus clarki3 sites
- Olenellus gilberti3 sites
- Trilobita2 sites
- Bristolia bristolensis1 site
- Bristolia harringtoni1 site
- Bristolia insolens1 site
- Bristolia mohavensis1 site
- Dictyonina1 site
- Mesonacis1 site
- Mesonacis fremonti1 site
- Mickwitzia occidens1 site
- Nevadotheca whitei1 site
- Nisusia fulleri1 site
- Olenellidae1 site
- Olenellus (Paedeumias)1 site
- Onchocephalus1 site
- Paterina prospectensis1 site
- Wimanella highlandensis1 site
The Paleobiology Database records 12 sites for Peachella, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
5 references- Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin10
- Biostratigraphy of upper Dyeran strata of the Carrara Formation, Emigrant Pass, Nopah Range, California6
- Stratigraphy and structure, Death Valley, California3
- A complete specimen of Peachella brevispina Palmer— an unusual olenellid trilobite (Arthropoda: Olenellida) from the lower Cambrian of California1
- Characteristics of Early Cambrian faunas from eastern San Bernardino County, California1
Each of the 21 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 Peachella
- Source
- Wikipedia/Commons
- Credit
- Apokryltaros
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Peachella 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.
The description on this site
- Source
- Wikipedia, “Peachella”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOlenellidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1910