Millardicurus millardensis
No picture of Millardicurus millardensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Millardicurus millardensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MillardicurusPBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Hystricuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 14 million years on record.
Every occurrence read is dated to somewhere between 490.2 Mya and 477.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
10 occurrences of Millardicurus millardensis 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
10 occurrences- Cambrian47%
- Ordovician53%
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
5 formations
- House Formation4
- House Limestone Formation2
- Wilberns Formation · Moore Hollow Group2
- Bliss Sandstone Formation1
- McKenzie Hill Limestone Formation1
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The named rock units Millardicurus millardensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Millardicurus millardensis and its relatives
OrdovicianWhere Millardicurus millardensis and its relatives were recorded in the Ordovician.
Found in the same rock
32 taxa- Symphysurina walcotti8 sites
- Symphysurina6 sites
- Lingulella4 sites
- Acrotretidae3 sites
- Clelandia3 sites
- Eurytreta3 sites
- Eurytreta sublata3 sites
- Jujuyaspis borealis3 sites
- Lingulides <juvenile>3 sites
- Symphysurina spicata3 sites
- Wahwahlingula3 sites
- Apheoorthis melita2 sites
- Cordylodus lindstromi2 sites
- Geragnostus2 sites
- Highgatella cordilleri2 sites
- Hystricurus2 sites
- Iapetognathus2 sites
- Schizambon typicalis2 sites
- Symphysurina bulbosa2 sites
- Apheoorthis1 site
- Cordylodus1 site
- Cordylodus intermedius1 site
- Cordylodus proavus1 site
- Jujuyaspis keideli1 site
The Paleobiology Database records 10 sites for Millardicurus millardensis, 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
6 references- Stratigraphy of the Sauk III interval (Cambrian-Ordovician) in the Ibex area, western Millard County, Utah and central Texas4
- Lower Ordovician trilobites from western Utah and eastern Nevadea2
- New earliest Ordovician trilobite genus Millardicurus: the oldest known hystricurid1
- High-resolution trilobite and conodont biostratigraphy across the Cambrian-Ordovician boundary in south-central New Mexico1
- The Moore Hollow Group of Central Texas1
- Late Cambrian and earliest Ordovician trilobites, Timbered Hills and Lower Arbuckle Groups, Western Arbuckle Mountains, Murray County, Oklahom1
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 Millardicurus millardensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Millardicurus millardensis, 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 itMillardicurus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hintze 1953)