Amarixys gracilis
No picture of Amarixys gracilis 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 Amarixys gracilis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AmarixysPBDB
- Life habit
- solitaryPBDB, for Arachnida
- Motility
- actively mobilePBDB, for Arachnida
- Environment
- terrestrialPBDB, for Arachnida
Time the record covers
At most 2.4 million years on record.
Every occurrence read is dated to somewhere between 309.8 Mya and 307.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Amarixys gracilis on record, most of them in the Carboniferous. 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
2 occurrences- Carboniferous100%
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
- Carbondale Formation · Kewanee Group1
- Senora Formation1
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The named rock units Amarixys gracilis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amarixys gracilis and its relatives
CarboniferousWhere Amarixys gracilis and its relatives were recorded in the Carboniferous.
Found in the same rock
17 taxa- Adiphlebia lacoana1 site
- Aphantomartus1 site
- Architarbus rotundatus1 site
- Discotarbus deplanatus1 site
- Dragonympha srokai1 site
- Eucaenus ovalis1 site
- Heterologus langfordorum1 site
- Lithoneura mirifica1 site
- Ootarbus ovatus1 site
- Ootarbus pulcher1 site
- Orthotarbus robustus1 site
- Palaeocaris typus1 site
- Paratarbus carbonarius1 site
- Pleophrynus ensifer1 site
- Pleurojulus biornatus1 site
- Syntonoptera schucherti1 site
- Thesoneura americana1 site
The Paleobiology Database records 2 sites for Amarixys gracilis, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Revision of the fossil ricinuleids1
- Palaeozoic Arachnida of Illinois. An enquiry into their evolutionary trends1
Each of the 2 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 Amarixys gracilis 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 Amarixys gracilis, or no answer at all. This entry cannot say which.
No 3D scan of Amarixys gracilis 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 itAmarixys through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Petrunkevitch 1945)