Harpides
Harpides is an extinct genus of harpetid trilobite of the family Harpididae.

Kozuch · CC BY-SA 3.0 · via Wikipedia/Commons. 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
- HarpididaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- limitedPBDB, for Harpididae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 11 million years on record.
The record covers at least 482.9 Mya to 471.3 Mya. No occurrence read is dated outside 486.85 Mya to 457.3 Mya.
36 occurrences of Harpides 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
36 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
13 formations
- Table Cove Formation · Table Head Group6
- Ceratopyge Formation3
- Volkhov Formation3
- Milina Formation2
- Outram Formation2
- Bjorkasholmen Formation1
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The named rock units Harpides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.
Harpides and its relatives
OrdovicianWhere Harpides and its relatives were recorded in the Ordovician.
Found in the same rock
343 taxa- Euloma9 sites
- Geragnostus7 sites
- Agerina6 sites
- Ceratopyge6 sites
- Lonchodomas normalis6 sites
- Nileus6 sites
- Nileus affinis6 sites
- Niobe6 sites
- Shumardia6 sites
- Telephina (Telephina) americana6 sites
- Ampyxoides semicostatus5 sites
- Apatokephalus5 sites
- Galbagnostus galba5 sites
- Nileus macrops5 sites
- Niobe (Niobella)5 sites
- Niobe morrisi5 sites
- Niobe quadraticaudata5 sites
- Porterfieldia fischeri5 sites
- Raymondaspis reticulatus5 sites
- Robergia schlotheimi5 sites
- Stegnopsis huttoni5 sites
- Symphysurus angustatus5 sites
- Apatokephalus serratus4 sites
- Bienvillia angelini4 sites
The Paleobiology Database records 36 sites for Harpides, 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
23 references- On the Early Ordovician of Sweden stratigraphy and fauna5
- Description of the upper portion of the drill-core from Finngrundet in the South Bothnian Bay4
- Trilobites of the Ordovician Table Head Formation, western Newfoundland3
- Middle Ordovician Table Head Formation, western Newfoundland3
- Upper Arenig trilobite biostratigraphy and sea-level changes at Lynna River near Volkhov, Russia2
- Trilobites from the Survey Peak, Outram and Skoki Formations (Upper Cambrian-Lower Ordovician) at Wilcox Pass, Jasper National Park, Alberta)2
- Palaeogeography and palaeoecology of early Floian (Early Ordovician) cephalopods from the Upper Fezouata Formation, Anti-Atlas, Morocco1
- Tremadocian Trilobites of the Prague Basin, Czech Republic1
- Available generic names for trilobites1
- Trilobites of the Tremadoc Bjørkåsholmen Formation in the Oslo Region, Norway1
- Summary of regional geology of Hu''nan Province, China1
- Newly discovered youngest Cambrian or oldest Ordovician fossils from the Robertson Bay terrane (formerly Precambrian), northern Victoria Land, Antarctica1
Each of the 36 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. 11 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 content2
Picture of Harpides
- Source
- Wikipedia/Commons
- Credit
- Kozuch
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- Free Standard
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Harpides”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHarpididae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Beyrich 1846