Megistaspis (Megistaspidella) acuticauda
No picture of Megistaspis (Megistaspidella) acuticauda was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Megistaspis (Megistaspidella) acuticauda, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Megistaspis (Megistaspidella)PBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Vision
- well-developedPBDB, for Asaphidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 7.8 million years on record.
Every occurrence read is dated to somewhere between 472.1 Mya and 464.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
32 occurrences of Megistaspis (Megistaspidella) acuticauda 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
32 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
4 formations
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The named rock units Megistaspis (Megistaspidella) acuticauda has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Megistaspis (Megistaspidella) acuticauda and its relatives
OrdovicianWhere Megistaspis (Megistaspidella) acuticauda and its relatives were recorded in the Ordovician.
Found in the same rock
74 taxa- Linguloidea23 sites
- Paurorthis23 sites
- Apomatella ingrica21 sites
- Lonchodomas volborthi17 sites
- Paralenorthis orbicularis16 sites
- Porambonites planus16 sites
- Asaphus (Asaphus) lepidurus15 sites
- Pseudocrania15 sites
- Antigonambonites planus14 sites
- Ingriops intermedius14 sites
- Nothortis sp.14 sites
- Ranorthis13 sites
- Ujukella fastigata13 sites
- Productorthis parallela12 sites
- Eosiphonotreta11 sites
- Metopolichas11 sites
- Orthis callactis11 sites
- Acrotretoid indet.10 sites
- Bornholmaspis8 sites
- Cyrtometopus8 sites
- Gonambonites8 sites
- Ingria nefedjevi8 sites
- Krattaspis paraspinosis8 sites
- Cyrtometopus clavifrons7 sites
The Paleobiology Database records 32 sites for Megistaspis (Megistaspidella) acuticauda, 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
3 references- Upper Arenig trilobite biostratigraphy and sea-level changes at Lynna River near Volkhov, Russia23
- The Asaphus Limestone in northernmost Öland8
- Description of the upper portion of the drill-core from Finngrundet in the South Bothnian Bay1
Each of the 32 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 Megistaspis (Megistaspidella) acuticauda was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Megistaspis (Megistaspidella) acuticauda, or no answer at all. This entry cannot say which.
No 3D scan of Megistaspis (Megistaspidella) acuticauda 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 itMegistaspis (Megistaspidella) through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Angelin 1854)