Acrotretid indet.
No picture of Acrotretid indet. was found. Wikipedia and Wikidata were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Acrotretid indet. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
Time the record covers
At least 54 million years on record.
The record covers at least 493.5 Mya to 438.6 Mya. No occurrence read is dated outside 497 Mya to 426.7 Mya.
6 occurrences of Acrotretid indet. on record, most of them in the Silurian. 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
6 occurrences- Cambrian17%
- Ordovician33%
- Silurian50%
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
4 formations
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The named rock units Acrotretid indet. has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Acrotretid indet. and its relatives
SilurianWhere Acrotretid indet. and its relatives were recorded in the Silurian.
Found in the same rock
128 taxa- <Acrotretid>3 sites
- <Alveolitid>1 site
- <Auloporid>1 site
- <Calymenid>1 site
- <conocardiid>1 site
- <Favositid>1 site
- <Halysitid>1 site
- <Heliolitid>1 site
- <Pachyporid>1 site
- <Phyllocarid>1 site
- <pisocrinid>1 site
- <Receptaculitid>1 site
- <stropheodonitid>1 site
- <Syringoporid>1 site
- Acrotretida1 site
- Actinopteria1 site
- Amphicoelia leidyi1 site
- Amphicyrtoceras1 site
- Anastrophia1 site
- Antirhynchonella1 site
- Arctinurus1 site
- Atrypa1 site
- Atrypina1 site
- Bellerophontoidea1 site
The Paleobiology Database records 4 sites for Acrotretid indet., 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
4 references- Conodonts from the Upper Ordovician–lower Silurian carbonate platform of North Greenland2
- The Nærsnes section, Oslo Region, Norway: trilobite, graptolite and conodont fossils reviewed2
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin1
- Trilobites of the Upper Cambrian Dunderberg Shale, Eureka District, Nevada1
Each of the 6 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Acrotretid indet. was found. Wikipedia and Wikidata were searched and had none.
iDigBio and GBIF were not searched: the Paleobiology Database does not place Acrotretid indet. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
No 3D scan of Acrotretid indet. 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 itFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.