Strigigenalis

Yale Peabody Museum · CC0 · via GBIF. 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
- BathyuridaePBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Bathyuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 4 million years on record.
The record covers at least 475.3 Mya to 471.3 Mya. No occurrence read is dated outside 488.9 Mya to 457.3 Mya.
129 occurrences of Strigigenalis 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
129 occurrences- Cambrianunder 1%
- 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
11 formations
- Kindblade Formation72
- Boat Harbour Formation · St. George Group32
- Catoche Formation · St. George Group16
- Beauharnois Formation · Beekmantown Group2
- Valmy Formation1
- Deadwood Formation1
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The named rock units Strigigenalis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Strigigenalis and its relatives
OrdovicianWhere Strigigenalis and its relatives were recorded in the Ordovician.
Found in the same rock
141 taxa- Bolbocephalus convexus29 sites
- Isoteloides peri24 sites
- Jeffersonia jenni22 sites
- Petigurus nero20 sites
- Benthamaspis conica15 sites
- Petigurus cullisoni13 sites
- Punka verecunda12 sites
- Bathyurellus abruptus11 sites
- Ischyrotoma anataphra11 sites
- Jeffersonia11 sites
- Jeffersonia timon11 sites
- Brachiopoda9 sites
- Catochia ornata9 sites
- Grinnellaspis newfoundlandensis8 sites
- Ischyrotoma sila8 sites
- Uromystrum affine8 sites
- Benthamaspis rhochmotis7 sites
- Bolbocephalus stitti7 sites
- Gastropoda7 sites
- Ischyrotoma7 sites
- Isoteloides canalis7 sites
- Petigurus7 sites
- Benthamaspis6 sites
- Bolbocephalus6 sites
The Paleobiology Database records 99 sites for Strigigenalis, 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
20 references- Trilobite biostratigraphy and correlation of the Kindblade Formation (Lower Ordovician) of Carter and Kiowa Counties, Oklahoma73
- Early Ordovician trilobite faunas of the Boat Harbour and Catoche Formations (St. George Group) in the Boat-Harbour-Cape Norman area, Great Northern Peninsula, western Newfoundland21
- Cambrian-Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland6
- Trilobite and Conodont Biostratigraphy of the St. George Group, Eddies Cove west area, Western Newfoundland5
- Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland5
- Macropaleontological investigation of the Upper St. George Group, West Isthmus Bay to East Bay section, Port au Port Peninsula, Western Newfoundland3
- Fauna of the lower Beauharnois Formation (Beekmantown Group, Lower Ordovician), Grand île, Quebec2
- Further developments in western Newfoundland Cambro-Ordovician biostratigraphy2
- Ordovician trilobites from the Romaine and Mingan Formations (Ibexian-Late Whiterockian), Mingan Islands, Quebec1
- The upper St. George Group, western Port au Port Penensula: lithostratigraphy, biostratigraphy, depositional environments and regional implications1
- Ordovician trilobites from north and northeastern China1
- Preliminary Ordovician trilobite stratigraphy of the Eddies Cove West-Port au Choix area, western Newfoundland1
Each of the 129 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. 8 further references are not listed. 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 content1

Picture of Strigigenalis
- Source
- GBIF
- Credit
- Yale Peabody Museum
- 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 itBathyuridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Whittington and Ross 1953