Bessazoon
No picture of Bessazoon was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none. Wikipedia 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 Bessazoon, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DalmanitidaePBDB
- Diet
- carnivorePBDB, for Phacopina
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Dalmanitidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 7.6 million years on record.
Every occurrence read is dated to somewhere between 440.5 Mya and 432.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
10 occurrences of Bessazoon 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
10 occurrences- Silurian100%
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
7 formations
- Hughley Shales Formation3
- Jupiter Formation2
- Wych Beds Formation1
- Buttington Mudstone Formation1
- May Hill Sandstone Formation1
- Skelgill Formation1
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The named rock units Bessazoon has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Bessazoon and its relatives
SilurianWhere Bessazoon and its relatives were recorded in the Silurian.
Found in the same rock
28 taxa- Decoroproetus2 sites
- Nucleurus2 sites
- Proromma2 sites
- Acernaspis1 site
- Acernaspis orestes1 site
- Anacaenaspis1 site
- Anadesma shallopensis1 site
- Ceratocephala1 site
- Daytonia jollieti1 site
- Deiphon1 site
- Diacalymene schucherti1 site
- Dudleyaspis1 site
- Elimaproetus1 site
- Encrinurus deomenos1 site
- Encrinurus punctatus1 site
- Exallaspis1 site
- Hadromeros1 site
- Harpidella1 site
- Kettneraspis1 site
- Kosovopeltis1 site
- Ktenoura1 site
- Maurotarion1 site
- Proromma bregmops1 site
- Raphiophorus1 site
The Paleobiology Database records 10 sites for Bessazoon, 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- The Llandovery trilobites of England and Wales. Part 18
- Early Silurian trilobites of Anticosti Island, Québec, Canada2
Each of the 10 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 Bessazoon was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
Wikipedia 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 Bessazoon, or no answer at all. This entry cannot say which.
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 itDalmanitidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Curtis and Lane 1998