Murchisonia obtusangula

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MurchisoniaPBDB
- Diet
- suspension feederPBDB, for Murchisonia
- Life habit
- epifaunalPBDB, for Murchisonia
- Motility
- actively mobilePBDB, for Murchisonia
- Vision
- limitedPBDB, for Murchisoniina
- Environment
- coastal,marinePBDB, for Murchisoniina
Time the record covers
At least 3.9 million years on record.
The record covers at least 430.6 Mya to 426.7 Mya. No occurrence read is dated outside 432.9 Mya to 425 Mya.
7 occurrences of Murchisonia obtusangula 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
7 occurrences- Silurian100%
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
Loading coastlines…
The named rock units Murchisonia obtusangula has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Murchisonia obtusangula and its relatives
SilurianWhere Murchisonia obtusangula and its relatives were recorded in the Silurian.
Found in the same rock
162 taxa- Platyostoma boggsi4 sites
- Oriostoma3 sites
- Pachystrophia gotlandicus3 sites
- Resserella canalis3 sites
- Amphistrophia2 sites
- Amsdenina2 sites
- Anastrophia (Grayina) magnifica2 sites
- Ancillotoechia2 sites
- Borealarges mikulicorum2 sites
- Calymene2 sites
- Caryogyps chattertoni2 sites
- Caryogyps grayi2 sites
- Chonetoidea2 sites
- Cliftonia2 sites
- Clorinda2 sites
- Cyrtia alatiformis2 sites
- Dalejina2 sites
- Dicoelosia2 sites
- Encrinurus2 sites
- Eoplectodonta (Ygerodiscus)2 sites
- Eospinatrypa2 sites
- Epitomyonia amplissima2 sites
- Epitomyonia clausula2 sites
- Euomphalopterus alatus2 sites
The Paleobiology Database records 7 sites for Murchisonia obtusangula, 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
3 references- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)4
- The Silurian Gastropoda and Pteropoda of Gotland2
- Silurian communities of the Oslo Region, Norway1
Each of the 7 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 content1

Picture of Murchisonia obtusangula
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMurchisonia through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Lindström 1884)