Ptychoparella
via iDigBio · via iDigBio. 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
- PtychopariidaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Ptychopariidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 5.2 million years on record.
The record covers at least 509.7 Mya to 504.5 Mya. No occurrence read is dated outside 538.8 Mya to 497 Mya.
78 occurrences of Ptychoparella 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
78 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
20 formations
- Emigrant Formation18
- Pioche Shale Formation10
- Monola Formation10
- Wheeler Formation7
- Kinzers Formation6
- Parker Slate Formation4
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The named rock units Ptychoparella has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ptychoparella and its relatives
CambrianWhere Ptychoparella and its relatives were recorded in the Cambrian.
Found in the same rock
310 taxa- Syspacephalus variosus17 sites
- Onchocephalites claytonensis13 sites
- Syspacephalus crassus10 sites
- Fieldaspis bilobata9 sites
- Poliella denticulata9 sites
- Amecephalus arrojosensis8 sites
- Elrathia8 sites
- Nyella plana8 sites
- Oryctocephalus indicus8 sites
- Kochiella brevaspis7 sites
- Kootenia7 sites
- Hyolithes6 sites
- Itagnostus interstrictus6 sites
- Oryctocephalus6 sites
- Peronopsis fallax6 sites
- Porifera6 sites
- Triplagnostus gibbus6 sites
- Wenkchemnia sulcata6 sites
- Hadrocephalites rhytidodes5 sites
- Kochiella5 sites
- Nisusia festinata5 sites
- Olenellus5 sites
- Paterina5 sites
- Peronopsis5 sites
The Paleobiology Database records 68 sites for Ptychoparella, 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
26 references- Early and Mid Cambrian Trilobites from the Outer-shelf Deposits of Nevada and California, USA18
- Trilobites of the lower Middle Cambrian Poliella denticulata biozone (new) of southeastern Nevada8
- Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA7
- Geology of the Hanover-York District Pennsylvania6
- Oryctocephalids (Corynexochida: Trilobita) of the Lower-Middle Cambrian boundary interval from California and Nevada5
- Biostratigraphy of the traditional Lower-Middle Cambrian boundary interval in the outher shelf Emigrant Formation, Split Mountain East Section, Esmeralda County, Nevada4
- Middle Cambrian stratigraphy and faunas of the Canadian Rocky Mountains4
- Paleontology of Northwestern Vermont. VI. The early Middle Cambrian fauna3
- The Burgess Shale and associated Cambrian formations west of the Fossil Gully Fault Zone on Mount Stephen, British Columbia2
- Lower Cambrian trilobites from North Greenland2
- Systematics and phylogenetics of polymeroid trilobites from the Henson Gletscher and Kap Stanton formations (Middle Cambrian), North Greenland2
- Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin2
Each of the 78 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. 14 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 Ptychoparella
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Ptychoparella 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 itPtychopariidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Poulson 1927