Xenelasma
No picture of Xenelasma 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 Xenelasma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- XenelasmatinaePBDB
- Diet
- suspension feederPBDB, for Pentamerida
- Life habit
- epifaunalPBDB, for Pentamerida
- Motility
- stationaryPBDB, for Pentamerida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 30 million years on record.
Every occurrence read is dated to somewhere between 486.85 Mya and 457.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Xenelasma 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
4 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
3 formations
- Honeycut Formation · Ellenburger Group2
- Rockdale Run Formation1
- Antelope Valley Formation · Pogonip Group1
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The named rock units Xenelasma has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Xenelasma and its relatives
OrdovicianWhere Xenelasma and its relatives were recorded in the Ordovician.
Found in the same rock
37 taxa- Archaeoscyphia2 sites
- Ceratopea2 sites
- Mcqueenoceras2 sites
- Allopiloceras1 site
- Anomalorthis fascicostellatus1 site
- Anomalorthis lonensis1 site
- Anomalorthis nevadensis1 site
- Aphetoceras1 site
- Asymphylotoechia nolani1 site
- Bathyurellus1 site
- Coreanoceras1 site
- Cotteroceras1 site
- Cyptendoceras1 site
- Diparelasma1 site
- Doloresella1 site
- Eopteria1 site
- Escharendoceras1 site
- Finkelnburgia1 site
- Hesperorthis matutina1 site
- Hormotoma1 site
- Jeffersonia1 site
- Lecanospira1 site
- Lesueurilla1 site
- Lobosiphon1 site
The Paleobiology Database records 3 sites for Xenelasma, 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
4 references- Organic buildups in the Lower Ordovician (Canadian) of Texas and Oklahoma1
- Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada1
- Early Ordovician Sea in Central Texas1
- Beekmantown Group (Lower Ordovician) of Maryland1
Each of the 4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Xenelasma 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 Xenelasma, or no answer at all. This entry cannot say which.
No 3D scan of Xenelasma 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 itXenelasmatinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.