Murchisonia

Ivtorov · CC BY-SA 4.0 · via Wikidata/Commons. 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
- MurchisoniidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- actively mobilePBDB
- Vision
- limitedPBDB, for Murchisoniina
- Environment
- coastal,marinePBDB, for Murchisoniina
Time the record covers
At least 338 million years on record.
The record covers at least 471.3 Mya to 132.6 Mya. No occurrence read is dated outside 483.4 Mya to 125.77 Mya.
396 occurrences of Murchisonia on record, most of them in the Devonian. 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
396 occurrences- Ordovician4%
- Silurian15%
- Devonian44%
- Carboniferous4%
- Permian4%
- Early Triassicunder 1%
- Middle Triassic1%
- Late Triassic3%
- Early Jurassicunder 1%
- Middle Jurassic23%
- Early Cretaceousunder 1%
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
127 formations
- Achdorf Formation29
- Schwelm Formation15
- Inferior Oolite Formation13
- Tölgyhát Formation12
- Cürten Formation10
- Lucas Formation · Detroit River Group10
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The named rock units Murchisonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 103 further formations hold fewer occurrences each and are not listed. 65 occurrences have no formation on record, which is common for older literature.
Murchisonia and its relatives
DevonianWhere Murchisonia and its relatives were recorded in the Devonian.
Found in the same rock
3,964 taxa- Crinoidea24 sites
- Loxonema24 sites
- Orthoceras19 sites
- Gastropoda18 sites
- Atrypa reticularis16 sites
- Bellerophon lineatus16 sites
- Ludwigia16 sites
- Eospirifer radiatus15 sites
- Nucleospira15 sites
- Philoxene laevis15 sites
- Atrypa14 sites
- Bivalvia14 sites
- Bryozoa14 sites
- Chonetes14 sites
- Favosites14 sites
- Stegerhynchus14 sites
- Whitfieldella14 sites
- Bellerophon13 sites
- Brachiopoda13 sites
- Dalmanites13 sites
- Euomphalus13 sites
- Schizophoria13 sites
- Calymene12 sites
- Ctenodonta12 sites
The Paleobiology Database records 255 sites for Murchisonia, and this reads 240 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
150 references- Ammonites and stratigraphy of the Achdorf Formation (Braunjura Group; Aalenian) at the Wochenberg hill near Schömberg-Schörzingen (W Swabian Alb, SW Germany)24
- Mitteldevonische (Givetische) Gastropoden (Mollusca) aus der Lahnmulde (suedliches Rheinisches Schiefergebirge)23
- Gastropoda from the Givetian “Massenkalk” of Schwelm and Hohenlimburg (Saureland, Rheinsiches Schiefergebirge, Germany)15
- Ammonites and stratigraphy of the “Wild Bed” (Middle Jurassic, Aalenian, Inferior Oolite) at Quarr Hill, Chideock, Dorset13
- Toarcian-Aalenian Hammatoceratinae (Ammonitina) from the Gerecse Mts (NE Transdanubian Range, Hungary)12
- Gastropods of the Middle Devonian Anderdon Limestone11
- El Aalenense en la Zona Subbetica [The Aalenian of the Subbetic Zone]10
- Unterdevonische Gastropoden aus den Karnischen Alpen9
- Silurian stratigraphy and palæontology of the Niagara escarpment in Ontario9
- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)7
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin7
- The Clinton of Western and Central New York7
Each of the 396 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. 138 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 content2

Picture of Murchisonia
- Source
- Wikidata/Commons
- Credit
- Ivtorov
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Shellie Luallin
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMurchisoniidae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (d'Archiac and de Verneuil 1841)