Gracquina
No picture of Gracquina 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 Gracquina, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PalaeocopidaPBDB
- Diet
- suspension feederPBDB, for Palaeocopida
- Life habit
- epifaunalPBDB, for Palaeocopida
- Motility
- actively mobilePBDB, for Ostracoda
- Vision
- limitedPBDB, for Ostracoda
- Environment
- marinePBDB, for Ostracoda
Time the record covers
At most 7 million years on record.
Every occurrence read is dated to somewhere between 468 Mya and 461 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Gracquina 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
2 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
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The named rock units Gracquina has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gracquina and its relatives
OrdovicianWhere Gracquina and its relatives were recorded in the Ordovician.
Found in the same rock
90 taxa- Asaphellus2 sites
- Cameroceras2 sites
- Sinuites2 sites
- Tropidodiscus2 sites
- <Genus T1, Aristocystitid echinoderm>1 site
- <Genus T2, Diploporitid echinoderm>1 site
- Acrograptus1 site
- Amplexograptus1 site
- Ananterodonta1 site
- Aulograptus1 site
- Azygograptus1 site
- Babinka1 site
- Bathmoceras1 site
- Bathycheilus1 site
- Calix1 site
- Cardiolaria1 site
- Cardiolaria beirensis1 site
- Cilindrotomaculum sp.1 site
- Codiacystis1 site
- Colaptomena1 site
- Colpocoryphe1 site
- Condranema1 site
- Coxiconchia1 site
- Curtoceras1 site
The Paleobiology Database records 2 sites for Gracquina, 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
2 references- The Ordovician succession from the western Iberian Ranges (NE Spain): a review with new data1
- Estudio bioestratigrafico del Llanvirn y Llandeilo (Dobrotiviense) en la parte meridional de la zona Centroiberica (España)1
Each of the 2 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 Gracquina 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 Gracquina, or no answer at all. This entry cannot say which.
No 3D scan of Gracquina 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPalaeocopida through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.