Gennaeocrinus
via iDigBio · CC0 · 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
- PeriechocrinitidaePBDB
- Diet
- suspension feederPBDB, for Monobathrida
- Life habit
- upper-level epifaunalPBDB, for Monobathrida
- Motility
- stationary, attachedPBDB, for Monobathrida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 34 million years on record.
The record covers at least 393.47 Mya to 358.86 Mya. No occurrence read is dated outside 422.7 Mya to 351.9 Mya.
8 occurrences of Gennaeocrinus 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
8 occurrences- Silurian1%
- Devonian86%
- Carboniferous13%
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
5 formations
- McColley Canyon Formation · Lower Nevada Group2
- Silica Formation1
- Thunder Bay Limestone Formation · Traverse Group1
- Ludlowville Formation · Hamilton Group1
- Sappington Formation1
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The named rock units Gennaeocrinus 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.
Gennaeocrinus and its relatives
DevonianWhere Gennaeocrinus and its relatives were recorded in the Devonian.
Found in the same rock
269 taxa- Tropidoleptus carinatus3 sites
- Ambocoelia umbonata2 sites
- Devonochonetes scitulus2 sites
- Eldredgeops rana2 sites
- Greenops2 sites
- Heterophrentis2 sites
- Mediospirifer audaculus2 sites
- Megastrophia2 sites
- Megistocrinus2 sites
- Pholidostrophia2 sites
- Platyceras bucculentum2 sites
- Pleurodictyum2 sites
- Protoleptostrophia perplana2 sites
- Rhipidomella2 sites
- Rhipidomella vanuxemi2 sites
- Spinulicosta spinulicosta2 sites
- Spirifer2 sites
- Strophodonta (Strophodonta) demissa2 sites
- ? Semipora ehlersi1 site
- Acanthoclema1 site
- Acaste1 site
- Acaste downingiae1 site
- Acastella spinosa1 site
- Acratia simplex1 site
The Paleobiology Database records 8 sites for Gennaeocrinus, 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
7 references- Two new Devonian crinoids from central Nevada2
- Relative taxonomic and ecological stability in Devonian marine faunas of New York State: a test of coordinated stasis1
- Strata and megafossils of the Middle Devonian Silica Formation1
- Correlation of the African Silurian rocks1
- Two new crinoids of the family Periechocrinitidae from the Middle Devonian Thunder Bay Limestone of Michigan1
- The Sappington Formation of southwestern Montana1
- A Faunal Study of the Beechwood Limestone (Middle Devonian); Speed, Indiana1
Each of the 8 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 Gennaeocrinus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Gennaeocrinus 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 itPeriechocrinitidae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wachsmuth and Springer 1881