Racheliella mersai
No picture of Racheliella mersai 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 Racheliella mersai, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- RacheliellaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 9.7 million years on record.
Every occurrence read is dated to somewhere between 237 Mya and 227.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Racheliella mersai on record, most of them in the Late Triassic. 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
5 occurrences- Late Triassic100%
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 Racheliella mersai has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Racheliella mersai and its relatives
Late TriassicWhere Racheliella mersai and its relatives were recorded in the Late Triassic.
Found in the same rock
483 taxa- Coelostylina crassa4 sites
- Camponaxis lateplicata3 sites
- Coelostylina conica3 sites
- Coelostylina karreri3 sites
- Euchrysalis sinistrorsa3 sites
- Hologyra expansa3 sites
- Promathildia subornata3 sites
- Pseudoclanculus cassianus3 sites
- Pseudomelania muensteri3 sites
- Teretrina bolina3 sites
- Zygopleura walmstedti3 sites
- Ampullina (Pseudamaura)2 sites
- Angularia subpleurotomaria2 sites
- Bivalvia2 sites
- Cassianella beyrichii2 sites
- Cassianella decussata2 sites
- Cassianopsis armata2 sites
- Cassianopsis decussata2 sites
- Collonia cincta2 sites
- Collonia reflexa2 sites
- Cortinaticopsis impressa2 sites
- Dentalium decoratum2 sites
- Dentineritaria neritina2 sites
- Euchrysalis fusiformis2 sites
The Paleobiology Database records 4 sites for Racheliella mersai, 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- Primary collection data of Cassian Formation used for publication of Fürsich and Wendt (1977) (ref. 9188)2
- Die Gastropoden der Schichten von St. Cassian der südalpinen Trias. III. Theil2
- Racheliella, a new mathildoid gastropod genus (Gastropoda, lower Heterobranchia) from the Late Triassic St. Cassian Formation (N Italy)1
Each of the 5 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 content0
No picture of Racheliella mersai 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 Racheliella mersai, or no answer at all. This entry cannot say which.
No 3D scan of Racheliella mersai 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 itRacheliella through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Kittl 1894)