Amphiaspidiformes
No picture of Amphiaspidiformes was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Amphiaspidiformes itself, so it was not used. 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 Amphiaspidiformes, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HeterostraciPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At most 6.6 million years on record.
Every occurrence read is dated to somewhere between 419.62 Mya and 413.02 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Amphiaspidiformes 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
6 occurrences- Devonian100%
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 Amphiaspidiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amphiaspidiformes and its relatives
DevonianWhere Amphiaspidiformes and its relatives were recorded in the Devonian.
Found in the same rock
43 taxa- Eglonaspis rostrata3 sites
- Gerronaspis dentata3 sites
- Olbiaspis coalescens3 sites
- Angaraspis2 sites
- Aphataspis kiaeri2 sites
- Argyriaspis tcherkesovae2 sites
- Kureykaspis salebrosa2 sites
- Lecaniaspis lata2 sites
- Putoranaspis2 sites
- Putoranaspis prima2 sites
- Siberiaspis plana2 sites
- Tuxeraspis varicostata2 sites
- Angaraspis urvantzevi1 site
- Anglaspis1 site
- Arcticacanthus bicostatus1 site
- Boreania minima1 site
- Canonia1 site
- Corvaspididae1 site
- Corveolepis1 site
- Ctenaspis1 site
- Edaphaspis bystrowi1 site
- Gunaspis orientalis1 site
- Heterostraci1 site
- Hibernaspis1 site
The Paleobiology Database records 4 sites for Amphiaspidiformes, 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- Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications3
- Subdivision of the Kureyka suite based on amphiaspid (Agnatha) assemblages3
Each of the 6 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 Amphiaspidiformes was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Amphiaspidiformes itself, so it was not used.
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 Amphiaspidiformes, or no answer at all. This entry cannot say which.
No 3D scan of Amphiaspidiformes 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 itHeterostraci through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Novitskaya 2008