Pterygometopus

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
- PterygometopinaePBDB
- Diet
- carnivorePBDB, for Phacopina
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Pterygometopidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 19 million years on record.
The record covers at least 469.1 Mya to 449.6 Mya. No occurrence read is dated outside 477.1 Mya to 443.1 Mya.
70 occurrences of Pterygometopus 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
70 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
24 formations
- Volkhov Formation17
- Holen Formation14
- Lebanon Limestone Formation5
- Carters Formation4
- Rio-Schiefer Formation4
- Lebanon Formation3
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The named rock units Pterygometopus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Pterygometopus and its relatives
OrdovicianWhere Pterygometopus and its relatives were recorded in the Ordovician.
Found in the same rock
798 taxa- Illaenus19 sites
- Pseudocrania18 sites
- Cyrtometopus clavifrons16 sites
- Remopleurides15 sites
- Antigonambonites planus14 sites
- Escharopora14 sites
- Asaphus (Asaphus) raniceps13 sites
- Lonchodomas volborthi13 sites
- Paurorthis13 sites
- Ranorthis13 sites
- Strophomena13 sites
- Linguloidea12 sites
- Apomatella ingrica11 sites
- Asaphus (Asaphus) lepidurus11 sites
- Metopolichas11 sites
- Cybele bellatula10 sites
- Pliomera fisheri10 sites
- Agerina9 sites
- Crinoidea9 sites
- Ingria nefedjevi9 sites
- Megistaspis9 sites
- Nileus9 sites
- Raunites venusta9 sites
- Rhinoferus hyorrhinus9 sites
The Paleobiology Database records 70 sites for Pterygometopus, 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
22 references- Upper Arenig trilobite biostratigraphy and sea-level changes at Lynna River near Volkhov, Russia14
- The Asaphus Limestone in northernmost Öland13
- Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States8
- Biofacies Replacement in a Sequence Stratigraphic Framework: Middle and Upper Ordovician of the Nashville Dome, Tennessee, USA6
- Phacopina und Cheirurina (Trilobita) aus dem Ordovizium von Spanien4
- Pre-Chattanooga stratigraphy in Central Tennessee4
- Pterygometopine Trilobites from the Ordovician of Baltoscandia3
- Available generic names for trilobites2
- Babin et al., 19822
- Description of the upper portion of the drill-core from Finngrundet in the South Bothnian Bay2
- Legend of the Central European series of sheets of the State Geological Map of the Russian Federation, scale 1:1,000,000 (third generation)1
- Les mollusques bivalves et rostroconches Ordoviciens de l’Anti-Atlas marocain: Intérêt paléogéographique de leur inventaire1
Each of the 70 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. 10 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 Pterygometopus
- 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 itPterygometopinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Schmidt 1881)