Dayia
Smithsonian Institution · CC0 · via Smithsonian. 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
- DayiidaePBDB
- Diet
- suspension feederPBDB, for Brachiopoda
- Life habit
- low-level epifaunalPBDB, for Brachiopoda
- Motility
- stationary, attachedPBDB, for Brachiopoda
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 20 million years on record.
The record covers at least 440.5 Mya to 419.62 Mya. No occurrence read is dated outside 443.1 Mya to 393.47 Mya.
121 occurrences of Dayia 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
121 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
45 formations
- Overton Formation10
- Pozary Formation8
- Pagegiai Formation · Varmia Group7
- Leintwardine Formation5
- Minija Formation4
- Dubysa Formation4
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The named rock units Dayia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 21 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.
Dayia and its relatives
SilurianWhere Dayia and its relatives were recorded in the Silurian.
Found in the same rock
632 taxa- Isorthis38 sites
- Microsphaeridiorhynchus nucula36 sites
- Craniops30 sites
- Atrypa reticularis26 sites
- Sphaerirhynchia wilsoni22 sites
- Protochonetes ludloviensis20 sites
- Howellella elegans19 sites
- Protochonetes19 sites
- Calymene18 sites
- Atrypa15 sites
- Crinoidea15 sites
- Delthyris (Delthyris) elevata15 sites
- Fuchsella amygdalina15 sites
- Nuculites15 sites
- Orbiculoidea15 sites
- Salopina lunata15 sites
- Shagamella15 sites
- Gypidula14 sites
- Homoeospira baylei14 sites
- Leptaena14 sites
- Levenea canaliculata14 sites
- Beyrichia13 sites
- Dalejina hybrida13 sites
- Howellella13 sites
The Paleobiology Database records 114 sites for Dayia, 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
37 references- Brachiopod communities of the Lithuanian Silurian14
- Faunas from the Upper Silurian (Upper Ludlovian) in the Ludlow-Much Wenlock District, England10
- Silurian field excursions: Prague Basin (Barrandian), Bohemia7
- Communities and Biozones in the Baltic Silurian7
- Revision of Silurian Dayiacea (Brachiopoda) from the North-East Baltic7
- Silurian and Lower Devonian brachiopod and bryozoan communities of southwestern Byelorussia6
- Faunal associations of the Lower Leintwardine Formation of the Anglo-Welsh Basin5
- Animal and plant communities of Podolia5
- New data on the stratigraphy and correlation of the South - East Baltic Wenlockian and Ludlovian (Silurian)5
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)4
- Silurian Brachiopod communities in the section of the Vilkaviskis-129 boring4
- Benthic community organization in the Ludlow Series of the Welsh Borderland4
Each of the 121 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. 25 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 content1
Picture of Dayia
- Source
- Smithsonian
- Credit
- Smithsonian Institution
- Licence
- CC0 — this site’s default, not the record’s
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDayiidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Davidson 1881