Psalikilus
No picture of Psalikilus 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 Psalikilus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HystricuridaePBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Hystricuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 4 million years on record.
The record covers at least 475.3 Mya to 471.3 Mya. No occurrence read is dated outside 488.9 Mya to 457.3 Mya.
48 occurrences of Psalikilus on record, most of them in the Ordovician. 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
48 occurrences- Cambrianunder 1%
- Ordovician100%
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
7 formations
- Fillmore Limestone Formation20
- Garden City Formation15
- Deadwood Formation5
- Ninemile Formation · Pogonip Group4
- Stonehenge Limestone Formation1
- Antelope Valley Formation · Pogonip Group1
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The named rock units Psalikilus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Psalikilus and its relatives
OrdovicianWhere Psalikilus and its relatives were recorded in the Ordovician.
Found in the same rock
130 taxa- Menoparia genalunata13 sites
- Licnocephala11 sites
- Protopliomerella contracta10 sites
- Aulacoparia9 sites
- Benthamaspis7 sites
- Aulacoparia (Aulacoparia) venta6 sites
- Lingulella6 sites
- Peltabellia6 sites
- Asaphellus5 sites
- Protopliomerops5 sites
- Aulacoparia (Aulacoparina) quadrata4 sites
- Gladiatoria gladiator4 sites
- Hystricurus4 sites
- Licnocephala bicornuta4 sites
- Nanorthis4 sites
- Protopresbynileus4 sites
- Ptyocephalus4 sites
- Ampyx3 sites
- Apatokephalus3 sites
- Bolbocephalus3 sites
- Eocrinoidea3 sites
- Finkelnburgia3 sites
- Hintzeia celsaora3 sites
- Hormotoma3 sites
The Paleobiology Database records 48 sites for Psalikilus, 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
12 references- Lower Ordovician trilobites from western Utah and eastern Nevadea17
- Trilobite biostratigraphy and revised bases of the Tulean and Blackhillsian Stages of the Ibexian Series, Lower Ordovician, western United States9
- Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas6
- Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada4
- Lower Ordovician (Arenig) faunas from the Williston Basin, Montana and North Dakota3
- Stratigraphy of Upper Cambrian-Lower Ordovician Subsurface Sequence in Williston Basin2
- Lower Ordovician detailed stratigraphic sections for western Utah2
- New pliomerid trilobite genus Lemureops from the Lower Ordovician (Ibexian; Tulean, Blackhillsian) of western Utah, USA1
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective1
- Zonation and correlation of Canadian and Early Mohawkian series1
- Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States1
- Beekmantown Group (Lower Ordovician) of Maryland1
Each of the 48 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 content0
No picture of Psalikilus 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 Psalikilus, or no answer at all. This entry cannot say which.
No 3D scan of Psalikilus 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 itHystricuridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ross 1951