Stygina angustifrons
No picture of Stygina angustifrons 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 Stygina angustifrons, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StyginaPBDB
- Diet
- carnivorePBDB, for Corynexochida
- Life habit
- nektobenthicPBDB, for Corynexochida
- Motility
- actively mobilePBDB, for Corynexochida
- Vision
- well-developedPBDB, for Styginidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 9.7 million years on record.
Every occurrence read is dated to somewhere between 452.8 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Stygina angustifrons 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
3 occurrences- 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
2 formations
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The named rock units Stygina angustifrons has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Stygina angustifrons and its relatives
OrdovicianWhere Stygina angustifrons and its relatives were recorded in the Ordovician.
Found in the same rock
126 taxa- Holotrachelus punctillosus3 sites
- Amphilichas lineatus2 sites
- Christiania dalarnensis2 sites
- Cryptothyrella terebratulina2 sites
- Decoroproetus asellus2 sites
- Encrinurus striatus2 sites
- Eobronteus laticauda2 sites
- Gunnarella magnifica2 sites
- Illaenus (Parillaenus) roemeri2 sites
- Illaenus linnarssoni2 sites
- Isocolus sjogreni2 sites
- Katastrophomena (Costistrophomena) magna2 sites
- Leptaena (Leptaena) bergstroemi2 sites
- Lichas affinis2 sites
- Pharostoma leptaenarum2 sites
- Sphaerexochus calvus2 sites
- Sphaerocoryphe punctata2 sites
- Stenopareia oviformis2 sites
- Ungulomena lindstroemi2 sites
- Achatella schmidti1 site
- Acidaspis bispinosa1 site
- Ambonychinia corrugata1 site
- Ambonychiopsis osmundsbergensis1 site
- Amphilichas dalecarlicus1 site
The Paleobiology Database records 3 sites for Stygina angustifrons, 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
2 references- The Trilobites of the Leptæna Limestone in Dalarne2
- The Ashgill Trilobites of the Oslo Region, Norway1
Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Stygina angustifrons 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 Stygina angustifrons, or no answer at all. This entry cannot say which.
No 3D scan of Stygina angustifrons 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 itStygina through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Warburg 1925