Dalejina alsa

Not Dalejina alsa. This is Dalejina Havlicek, 1953, a relative — both are Rhipidomellidae.
Rasczinski, P. · CC BY-NC 4.0 · via GBIF. 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
- DalejinaPBDB
- Diet
- suspension feederPBDB, for Orthida
- Life habit
- epifaunalPBDB, for Orthida
- Motility
- stationary, attachedPBDB, for Orthida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 6.1 million years on record.
The one occurrence read is dated to somewhere between 399.5 Mya and 393.47 Mya, which is a dating window rather than a span.
1 occurrence of Dalejina alsa 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
1 occurrences- Devonian100%
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
1 formation
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The named rock units Dalejina alsa has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Dalejina alsa and its relatives
DevonianWhere Dalejina alsa and its relatives were recorded in the Devonian.
Found in the same rock
23 taxa- Amphigenia elongata1 site
- Atrypa reticularis1 site
- Centronella glansfagea1 site
- Cloudothyris postovalis1 site
- Coelospira camilla1 site
- Costispirifer unicus1 site
- Cupularostrum1 site
- Cyrtinaella biplicata1 site
- Elita1 site
- Eodevonaria arcuata1 site
- Fimbrispirifer divaricatus1 site
- Leptaena1 site
- Machaeraria carolina1 site
- Megakozlowskiella raricosta1 site
- Meristina nasuta1 site
- Mucrospirifer1 site
- Nucleospira1 site
- Patriaspirifer duodenaria1 site
- Pentamerella arata1 site
- Petrocrania1 site
- Plicanoplia1 site
- Schuchertella1 site
- Strophodonta (Strophodonta) demissa1 site
The Paleobiology Database records 1 site for Dalejina alsa, 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 1 occurrence 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 content1

Picture of Dalejina Havlicek, 1953
- Source
- GBIF
- Credit
- Rasczinski, P.
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan of Dalejina alsa 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 itDalejina through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1863)