Hypodicranotus striatulus

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- HypodicranotusPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- nektobenthicPBDB, for Remopleurididae
- Motility
- actively mobilePBDB, for Remopleurididae
- Vision
- well-developedPBDB, for Remopleurididae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 7.2 million years on record.
The record covers at least 458.2 Mya to 451 Mya. No occurrence read is dated outside 471.3 Mya to 449.5 Mya.
10 occurrences of Hypodicranotus striatulus 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- 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
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The named rock units Hypodicranotus striatulus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hypodicranotus striatulus and its relatives
OrdovicianWhere Hypodicranotus striatulus and its relatives were recorded in the Ordovician.
Found in the same rock
93 taxa- Bumastoides4 sites
- Ceraurus matranseris4 sites
- Erratencrinurus spicatus3 sites
- Isotelus gigas3 sites
- Acanthoparypha goniopyga2 sites
- Achatella achates2 sites
- Amphilichas2 sites
- Anataphrus2 sites
- Ancistrorhyncha2 sites
- Borealaspis whittakerensis2 sites
- Calyptaulax2 sites
- Calyptaulax callicephalus2 sites
- Ceraurinella brevispina2 sites
- Ceraurinus2 sites
- Ceraurus pleurexanthemus2 sites
- Dimeropyge2 sites
- Dolichoharpes2 sites
- Encrinuroides2 sites
- Encrinuroides gelaisi2 sites
- Flexicalymene (Flexicalymene) senaria2 sites
- Hemiarges paulianus2 sites
- Hesperorthis2 sites
- Holtedahlina sulcata2 sites
- Isotelus2 sites
The Paleobiology Database records 10 sites for Hypodicranotus striatulus, 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- Selected Ordovician trilobites from the Lake St. John District of Quebec and their bearing on systematics3
- The Walcott-Rust Quarry: Middle Ordovician Trilobite Konservat-Lagerstätten2
- The peculiar Ordovician trilobite Hypodicranotus from the Whittaker Formation, District of Mackenzie2
- Stratigraphy of the Ordovician of the Lac Saint-Jean and Chicoutimi outliers, Quebec1
- Upper Ordovician conodonts, brachiopods, and chronostratigraphy of the Whittaker Formation, southwestern District of Mackenzie, N. W. T., Canada1
- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie1
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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Hypodicranotus striatulus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
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 itHypodicranotus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Walcott 1875)