Millardicurus
No picture of Millardicurus 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, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HystricuridaePBDB
- 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.
28 occurrences of Millardicurus 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
28 occurrences- Cambrian34%
- Ordovician66%
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
10 formations
- Watts Bight Formation · St. George Group9
- House Formation6
- Cass Fjord Formation4
- House Limestone Formation2
- Wilberns Formation · Moore Hollow Group2
- Whitehall Formation1
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The named rock units Millardicurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Millardicurus and its relatives
OrdovicianWhere Millardicurus and its relatives were recorded in the Ordovician.
Found in the same rock
58 taxa- Symphysurina10 sites
- Symphysurina walcotti9 sites
- Finkelnburgia4 sites
- Lingulella4 sites
- Symphysurina myopia4 sites
- Acrotretidae3 sites
- Clelandia3 sites
- Eurytreta3 sites
- Eurytreta sublata3 sites
- Highgatella cordilleri3 sites
- Jujuyaspis borealis3 sites
- Lingulides <juvenile>3 sites
- Symphysurina spicata3 sites
- Wahwahlingula3 sites
- Apheoorthis melita2 sites
- Bathyurus ellipticus2 sites
- Cordylodus lindstromi2 sites
- Geragnostus2 sites
- Hystricurus2 sites
- Iapetognathus2 sites
- Lingulepis tenuilineata2 sites
- Schizambon typicalis2 sites
- Schizopea2 sites
- Symphysurina bulbosa2 sites
The Paleobiology Database records 27 sites for Millardicurus, 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
9 references- Stratigraphic studies of the Watts Bight Formation (St. George Group), Port au Port Peninsula, Western Newfoundland6
- New earliest Ordovician trilobite genus Millardicurus: the oldest known hystricurid5
- On the Lower Ordovician faunas of East Greenland5
- Stratigraphy of the Sauk III interval (Cambrian-Ordovician) in the Ibex area, western Millard County, Utah and central Texas4
- Continuing Stratigraphic and Trilobite Studies of the Watts Bight Formation (St. George Group), Port au Port Peninsula, Western Newfoundland3
- Lower Ordovician trilobites from western Utah and eastern Nevadea2
- 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 28 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 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, 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 itHystricuridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Adrain and Westrop 2006