Gracianella
Gracianella is a genus of fossil brachiopods. It was described by Johnson and Boucot in 1967, and existed from the Silurian to the Devonian of Australia, Austria, Canada, China, the Czech Republic, Italy, Tajikistan, and the United States. A new species, G. paulula, was described by Andrzej Baliński in 2012, from the early Devonian of Ukraine.
No picture of Gracianella 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 Gracianella, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AtrypininaePBDB
- Diet
- suspension feederPBDB, for Atrypida
- Life habit
- epifaunalPBDB, for Atrypida
- Motility
- stationaryPBDB, for Atrypida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 15 million years on record.
The record covers at least 438.6 Mya to 422.7 Mya. No occurrence read is dated outside 443.1 Mya to 393.47 Mya.
71 occurrences of Gracianella on record, most of them in the Silurian. 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
71 occurrencesThese 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
14 formations
- Roberts Mountain Formation12
- Kopanina Formation12
- Pozary Formation10
- Cape Phillips Formation6
- Isfara Formation3
- Delorme Formation3
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The named rock units Gracianella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.
Gracianella and its relatives
SilurianWhere Gracianella and its relatives were recorded in the Silurian.
Found in the same rock
680 taxa- Atrypoidea27 sites
- Septatrypa22 sites
- Dicoelosia16 sites
- Nucleospira16 sites
- Howellella15 sites
- Gypidula14 sites
- Isorthis14 sites
- Bleshidium13 sites
- Clorinda12 sites
- Dalejina12 sites
- Hedeina12 sites
- Salopina12 sites
- Alaskospira11 sites
- Atrypa11 sites
- Spurispirifer11 sites
- Cadudium10 sites
- Ceratocephala10 sites
- Ptychopleurella10 sites
- Decoropugnax9 sites
- Dolerorthis9 sites
- Glassia9 sites
- Leonaspis9 sites
- Leptaena9 sites
- Ancillotoechia8 sites
The Paleobiology Database records 58 sites for Gracianella, 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
25 references- Silurian field excursions: Prague Basin (Barrandian), Bohemia11
- Pridolian and early Gedinnian age brachiopods from the Roberts Mountains Formation of central Nevada11
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)9
- Wenlockian (Silurian) brachiopods of the Cape Phillips Formation, Baillie Hamilton Island, Arctic Canada: part I5
- Latest Ordovician-Silurian articulate brachiopods and biostratigraphy of the Avalanche Lake area, southwestern District of Mackenzie, Canada4
- Pridoli--the fourth subdivision of the Silurian3
- Tien-Shan3
- Aenigmastrophia, new genus, a difficult Silurian brachiopod3
- Silurian and Early Devonian benthic communities of the Ural-Tien Shan region2
- Wenlockian to Emsian communities of the Carnic Alps (Austria and Italy)2
- Biostratigraphic reconnaissance in the Lower Palaeozoic of western North Greenland2
- Yukon Territory2
Each of the 71 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. 13 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 content0
No picture of Gracianella 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 Gracianella, or no answer at all. This entry cannot say which.
No 3D scan of Gracianella was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Gracianella”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAtrypininae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Johnson and Boucot 1967