Cyathaspididae
Cyathaspididae is an extinct family in the heterostracan order Cyathaspidiformes.

Apokryltaros · CC BY-SA 4.0 · via Wikipedia/Commons. 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
- CyathaspidiformesPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At least 33 million years on record.
The record covers at least 432.9 Mya to 399.5 Mya. No occurrence read is dated outside 443.1 Mya to 387.95 Mya.
167 occurrences of Cyathaspididae 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
167 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
44 formations
- Delorme Formation33
- Fraenkelryggen Formation14
- Ben Nevis Formation14
- Peel Sound Formation10
- Somerset Island Formation10
- Pod''emnaya Formation9
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The named rock units Cyathaspididae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 further formations hold fewer occurrences each and are not listed. 17 occurrences have no formation on record, which is common for older literature.
Cyathaspididae and its relatives
DevonianWhere Cyathaspididae and its relatives were recorded in the Devonian.
Found in the same rock
505 taxa- Corvaspis17 sites
- Traquairaspis14 sites
- Poraspis13 sites
- Cephalaspis11 sites
- Nikolivia elongata10 sites
- Poraspis polaris9 sites
- Turinia pagei9 sites
- Acanthodii8 sites
- Anglaspis7 sites
- Bivalvia7 sites
- Homalaspidella7 sites
- Lingulidae7 sites
- Poraspis sturi7 sites
- Protopteraspis7 sites
- Pteraspididae7 sites
- Torpedaspis elongata7 sites
- Vernonaspis7 sites
- Ostracoda6 sites
- Tolypelepis undulata6 sites
- Alainaspis platyrhina5 sites
- Archegonaspis5 sites
- Brachiopoda5 sites
- Dinaspidella5 sites
- Heterostraci5 sites
The Paleobiology Database records 91 sites for Cyathaspididae, 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
41 references- Ostracoderm faunas of the Delorne and associated Siluri-Devonian Formations, North Western Territories, Canada32
- The vertebrate stratigraphy of the Lower Devonian (Red Bay Group and Wood Bay Formation) of Spitsbergen23
- Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications15
- Habitat of Llandoverian-Lochkovian eurypterids11
- A New Heterostracan from the Upper Silurian of Northwest Territories, Canada11
- The Early Devonian armoured agnathans of Podolia, Ukraine7
- The Boothiaspidinae, a new agnathan subfamily (Heterostraci, Cyathaspididae) from the late Silurian and Early Devonian of the western United States and the Canadian Arctic6
- A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the Upper Silurian and Lower Devonian of Arctic Canada6
- New Silurian Heterostraci from Southeastern Yukon5
- Silurian cyathaspidid heterostracans of Northern Eurasia4
- Canadian Arctic Archipelago4
- Late Silurian fossil fishes sites of the Welsh Borders3
Each of the 167 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. 29 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 Cyathaspididae
- Source
- Wikipedia/Commons
- Credit
- Apokryltaros
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- 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 itCyathaspidiformes through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kiaer 1932