Polygnathidae
Polygnathidae is an extinct family of conodonts.

Uncredited · Public Domain · 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
- PolygnathaceaPBDB
- Diet
- carnivorePBDB, for Conodonta
- Life habit
- nektonicPBDB, for Conodonta
- Motility
- actively mobilePBDB, for Conodonta
- Vision
- well-developedPBDB, for Conodonta
Time the record covers
At least 171 million years on record.
The record covers at least 413.02 Mya to 241.464 Mya. No occurrence read is dated outside 422.7 Mya to 201.4 Mya.
5,223 occurrences of Polygnathidae on record, most of them in the Devonian. 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
5,223 occurrences- Silurianunder 1%
- Devonian89%
- Carboniferous11%
- Permianunder 1%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassicunder 1%
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
234 formations
- Comabella Formation397
- Delay limestone Formation184
- Wangyou Formation159
- Beul Formation125
- Bouia Formation · Achguig Group111
- Lime Creek Formation110
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The named rock units Polygnathidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 210 further formations hold fewer occurrences each and are not listed. 1,730 occurrences have no formation on record, which is common for older literature.
Polygnathidae and its relatives
DevonianWhere Polygnathidae and its relatives were recorded in the Devonian.
Found in the same rock
1,206 taxa- Polygnathus168 sites
- Palmatolepis79 sites
- Ozarkodina52 sites
- Icriodus43 sites
- Belodella35 sites
- Pseudopolygnathus35 sites
- Spathognathodus35 sites
- Neopolygnathus communis29 sites
- Palmatolepis glabra28 sites
- Palmatolepis minuta28 sites
- Fasciculophyllum26 sites
- Gnathodus21 sites
- Pandorinellina21 sites
- Pelekysgnathus20 sites
- Caninia cornucopiae19 sites
- Hindeodus19 sites
- Nowakia18 sites
- Rugosa18 sites
- Ancyrodella17 sites
- Gypidula17 sites
- Conodonta16 sites
- Warrenella16 sites
- Polygnathus costatus15 sites
- Schizophoria15 sites
The Paleobiology Database records at least 713 sites for Polygnathidae, and this reads 240 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
199 references- Das "Taghanic Event" im höheren Mittel-Devon von West-Europa und Marokko363
- Physical and biological events across the Frasnian-Famennian boundary (Late Devonian) in continuous oxic carbonate successions in the western Tethys (Carnic Alps of Italy and Austria)314
- The Lali Section: An Excellent Reference Section for Upper Devonian in South China283
- Upper Devonian (Frasnian-Famennian) conodont biostratigraphy in the subsurface of north-central Iowa and southeastern Nebraska237
- Givetian and early Frasnian conodonts from the Compte section (Middle–Upper Devonian, Spanish Central Pyrenees)215
- Early Middle Devonian conodont faunas (Eifelian, costatus-kockelianus zones) from the Roberts Mountains and adjacent areas in central Nevada186
- Eifelian (Middle Devonian) to lower Frasnian (Upper Devonian) conodont biostratigraphy in the Villech section, Spanish Central Pyrenees182
- The Givetian-Frasnian boundary in pre-Sahara Morocco171
- Distribution comparée de Conodontes et Goniatites dévoniens des plaines du Dra, du Ma'der et du Tafilalt169
- Late Emsian-Givetian Stratigraphy and Conodont Biofacies - Carbonate Slope and Offshore Shoal to Sheltered Lagoon and Nearshore Carbonate Ramp - Broken River, North Queensland, Australia157
- Drowning, extinction, and subsequent facies development of the Devonian Hönne Valley Reef (northern Rhenish Massif, Germany)141
- Trilobite fauna at the Devonian-Carboniferous boundary in South China (S-Guizhou and N-Guangxi)132
Each of the 5,223 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. 187 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 Polygnathidae
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Polygnathidae was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- 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 itPolygnathacea through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bassler 1925