Alkaidia sumralli
No picture of Alkaidia sumralli was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Alkaidia sumralli itself, so it was not used. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Alkaidia sumralli, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AlkaidiaPBDB
- Diet
- carnivorePBDB, for Asteroidea
- Life habit
- low-level epifaunalPBDB, for Asteroidea
- Motility
- slow-movingPBDB, for Asteroidea
- Vision
- limitedPBDB, for Asteroidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 13 million years on record.
Every occurrence read is dated to somewhere between 106.3 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
7 occurrences of Alkaidia sumralli on record, most of them in the Early Cretaceous. 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
7 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
4 formations
- Pawpaw Formation · Washita Group3
- Del Rio Formation · Washita Group2
- Main Street Limestone Formation · Washita Group1
- Grayson Marl Formation · Washita Group1
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The named rock units Alkaidia sumralli has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Alkaidia sumralli and its relatives
Early CretaceousWhere Alkaidia sumralli and its relatives were recorded in the Early Cretaceous.
Found in the same rock
11 taxa- Betelgeusia reidi5 sites
- Denebia americana3 sites
- Altairia wintoni2 sites
- Crateraster texensis2 sites
- Steorrosia aspera2 sites
- Crateraster1 site
- Cymatoceras1 site
- Etyxanthosia pawpawensis1 site
- Fomalhautia hortensae1 site
- Goniasteridae1 site
- Texigryphaea1 site
The Paleobiology Database records 7 sites for Alkaidia sumralli, 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
1 reference- Some Albian (Cretaceous) asteroids (Echinodermata) from Texas and their paleobiological implications7
Each of the 7 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 Alkaidia sumralli was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Alkaidia sumralli itself, so it was not used.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Alkaidia sumralli, 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 itAlkaidia through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Blake and Reid 1998