Symphysurina
No picture of Symphysurina was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Symphysurina, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SymphysurinidaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 450 thousand years on record.
The record covers at least 486.85 Mya to 486.4 Mya. No occurrence read is dated outside 490.2 Mya to 471.3 Mya.
156 occurrences of Symphysurina 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
156 occurrences- Cambrian25%
- Ordovician75%
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
21 formations
- Survey Peak Formation · McKay Group25
- Watts Bight Formation · St. George Group20
- House Limestone Formation19
- Wilberns Formation · Moore Hollow Group18
- House Formation15
- Green Point Formation · Cow Head Group10
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The named rock units Symphysurina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Symphysurina and its relatives
OrdovicianWhere Symphysurina and its relatives were recorded in the Ordovician.
Found in the same rock
242 taxa- Hystricurus15 sites
- Clelandia12 sites
- Geragnostus12 sites
- Highgatella cordilleri12 sites
- Lingulella9 sites
- Millardicurus millardensis9 sites
- Clelandia albertensis8 sites
- Genalaticurus genalatus8 sites
- Jujuyaspis borealis8 sites
- Bellefontia7 sites
- Cordylodus proavus7 sites
- Millardicurus armatus7 sites
- Apheoorthis6 sites
- Cordylodus lindstromi6 sites
- Euloma6 sites
- Finkelnburgia6 sites
- Teridontus nakamurai6 sites
- Clelandia utahensis5 sites
- Cordylodus5 sites
- Cordylodus intermedius5 sites
- Hirsutodontus5 sites
- Jujuyaspis keideli5 sites
- Nanorthis5 sites
- Parabolinella5 sites
The Paleobiology Database records 130 sites for Symphysurina, 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
36 references- Stratigraphy of the Sauk III interval (Cambrian-Ordovician) in the Ibex area, western Millard County, Utah and central Texas20
- Lower Ordovician trilobites from western Utah and eastern Nevadea18
- Trilobites from the Survey Peak, Outram and Skoki Formations (Upper Cambrian-Lower Ordovician) at Wilcox Pass, Jasper National Park, Alberta)17
- Stratigraphic studies of the Watts Bight Formation (St. George Group), Port au Port Peninsula, Western Newfoundland12
- High-resolution trilobite and conodont biostratigraphy across the Cambrian-Ordovician boundary in south-central New Mexico9
- Continuing Stratigraphic and Trilobite Studies of the Watts Bight Formation (St. George Group), Port au Port Peninsula, Western Newfoundland8
- The Moore Hollow Group of Central Texas8
- Cambrian-Ordovician boundary sections in the Cow Head Group, western Newfoundland7
- On the Lower Ordovician faunas of East Greenland6
- Sunwaptan and Ibexian (Upper Cambrian-Lower Ordovician) trilobites of the Rabbitkettle Formation, Mountain River region, northern Mackenzie Mountains, northwest Canada5
- New earliest Ordovician trilobite genus Millardicurus: the oldest known hystricurid4
- Cambrian-Ordovican trilobites from the boundary beds in western Newfoundland and their phylogenetic significance4
Each of the 156 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. 24 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 Symphysurina was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Symphysurina, or no answer at all. This entry cannot say which.
No 3D scan of Symphysurina 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 itSymphysurinidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich 1924