Archegonaspis
No picture of Archegonaspis 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 Archegonaspis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CyathaspididaePBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At least 5.3 million years on record.
The record covers at least 425 Mya to 419.62 Mya. No occurrence read is dated outside 443.1 Mya to 399.5 Mya.
13 occurrences of Archegonaspis 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
13 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
7 formations
- Delorme Formation3
- Ust'-Spokojnaya Formation1
- Beyrichienkalk Formation1
- Upper Ludlow Formation1
- Black Cock Beds Formation1
- Leintwardine Formation1
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The named rock units Archegonaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Archegonaspis and its relatives
SilurianWhere Archegonaspis and its relatives were recorded in the Silurian.
Found in the same rock
89 taxa- Cyathaspididae3 sites
- Atrypa2 sites
- Heterostraci2 sites
- Homalaspidella2 sites
- Leperditia2 sites
- Lingulidae2 sites
- Mixopterus2 sites
- Traquairaspis pustulata2 sites
- Vernonaspis2 sites
- Actinopterella1 site
- Anthozoa1 site
- Asketaspis interstincta1 site
- Bivalvia1 site
- Brachiopoda1 site
- Bryozoa1 site
- Calymene1 site
- Camarotoechia1 site
- Cephalopoda1 site
- Ceratiocaris1 site
- Conularia1 site
- Cornulites1 site
- Corvaspis1 site
- Cuneamya1 site
- Cyathaspis1 site
The Paleobiology Database records 12 sites for Archegonaspis, 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
7 references- Silurian cyathaspidid heterostracans of Northern Eurasia4
- Ostracoderm faunas of the Delorne and associated Siluri-Devonian Formations, North Western Territories, Canada3
- Late Silurian fossil fishes sites of the Welsh Borders2
- Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications1
- Stratigraphy of Upper Silurian Cayugan Evaporites1
- Cyathaspid fishes from the Vernon shale of New York1
- IV.— On the occurrence of a fish (Pteraspis) in the lower Ludlow rock1
Each of the 13 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 Archegonaspis 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 Archegonaspis, or no answer at all. This entry cannot say which.
No 3D scan of Archegonaspis 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 itCyathaspididae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1927