Murchisonia (Hormotoma) gracillima
No picture of Murchisonia (Hormotoma) gracillima 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 Murchisonia (Hormotoma) gracillima, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HormotomaPBDB
- Diet
- herbivorePBDB, for Hormotoma
- Life habit
- epifaunalPBDB, for Hormotoma
- Motility
- actively mobilePBDB, for Hormotoma
- Vision
- limitedPBDB, for Murchisoniina
- Environment
- coastal,marinePBDB, for Murchisoniina
Time the record covers
At most 13 million years on record.
Every occurrence read is dated to somewhere between 483.4 Mya and 471.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Murchisonia (Hormotoma) gracillima 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
- Croisaphuill Formation · Durness Group2
- Balnakeil Formation · Durness Group1
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The named rock units Murchisonia (Hormotoma) gracillima has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Murchisonia (Hormotoma) gracillima and its relatives
OrdovicianWhere Murchisonia (Hormotoma) gracillima and its relatives were recorded in the Ordovician.
Found in the same rock
16 taxa- Ceratopea canadensis3 sites
- Euchasma blumenbachi2 sites
- Lophospira perangulata2 sites
- Allopiloceras bealachense1 site
- Apocrinoceras1 site
- Augeoceras gracile1 site
- Cassinoceras wortheni1 site
- Donaldiella cicelia1 site
- Ectocycloceras levisense1 site
- Ectomaria adelina1 site
- Euconia etna1 site
- Hormotoma anna1 site
- Hormotoma artemesia1 site
- Lecanospira compacta1 site
- Macluritella peachi1 site
- Protocycloceras1 site
The Paleobiology Database records 3 sites for Murchisonia (Hormotoma) gracillima, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
1 referenceEach 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 Murchisonia (Hormotoma) gracillima 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 Murchisonia (Hormotoma) gracillima, or no answer at all. This entry cannot say which.
No 3D scan of Murchisonia (Hormotoma) gracillima 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 itHormotoma through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Murchison 1859)