Euptychaspis
No picture of Euptychaspis was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Euptychaspis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PtychaspididaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Vision
- well-developedPBDB, for Ptychaspididae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 493.5 Mya and 483.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
64 occurrences of Euptychaspis 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
64 occurrences- Cambrian99%
- Ordovicianunder 1%
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
10 formations
- Signal Mountain Limestone Formation30
- Wilberns Formation · Moore Hollow Group13
- Notch Peak Formation6
- Whitehall Formation4
- Mistaya Formation3
- Whipple Cave Formation2
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The named rock units Euptychaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Euptychaspis and its relatives
CambrianWhere Euptychaspis and its relatives were recorded in the Cambrian.
Found in the same rock
119 taxa- Stenopilus latus21 sites
- Eurekia eos18 sites
- Idiomesus levisensis12 sites
- Bayfieldia simata11 sites
- Idiomesus intermedius9 sites
- Briscoia llanoensis8 sites
- Bynumina vescula8 sites
- Prosaukia serotina8 sites
- Calvinella7 sites
- Calvinella tenuisculpta7 sites
- Saukiella7 sites
- Eurekia6 sites
- Bayfieldia binodosa5 sites
- Bowmania pennsylvanica5 sites
- Meniscocoryphe platycephala5 sites
- Plethopeltis5 sites
- Saukia5 sites
- Acheilops masonensis4 sites
- Bowmania americana4 sites
- Idiomesus4 sites
- Keithiella patula4 sites
- Macronoda notchpeakensis4 sites
- Prosaukia spinula4 sites
- Rasettia wichitaensis4 sites
The Paleobiology Database records 57 sites for Euptychaspis, 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
15 references- Late Cambrian and earliest Ordovician trilobites, Timbered Hills and Lower Arbuckle Groups, Western Arbuckle Mountains, Murray County, Oklahom30
- Trilobites of the Upper Cambrian Ptychaspid Biomere Wilberns Formation, central Texas10
- Late Cambrian ptychaspidid trilobites from western Utah: implications for trilobite systematics and biostratigraphy5
- Systematics, environment, and biogeography of some Late Cambrian and Early Ordovician trilobites from eastern New York State4
- Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta3
- The Moore Hollow Group of Central Texas2
- Geologic map of the Rhyolite Ridge quadrangle, Esmeralda County, Nevada2
- A Late Cambrian (Sunwaptan) Silicified Trilobite Fauna from Nevada1
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective1
- High-resolution trilobite and conodont biostratigraphy across the Cambrian-Ordovician boundary in south-central New Mexico1
- Sunwaptan and Ibexian (Upper Cambrian-Lower Ordovician) trilobites of the Rabbitkettle Formation, Mountain River region, northern Mackenzie Mountains, northwest Canada1
- Cambrian stratigraphy and paleontology of the Great Basin and vicinity, western United States; 2nd international symposium on the Cambrian System1
Each of the 64 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. 3 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 content0
No picture of Euptychaspis was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Euptychaspis, or no answer at all. This entry cannot say which.
No 3D scan of Euptychaspis 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 itPtychaspididae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich 1931