Drepanodus

USGS · Public Domain · via Wikidata/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
- ProtopanderodontidaePBDB
- 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 118 million years on record.
The record covers at least 486.85 Mya to 368.5 Mya. No occurrence read is dated outside 490.2 Mya to 358.86 Mya.
270 occurrences of Drepanodus 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
270 occurrences- Cambrianunder 1%
- Ordovician71%
- Silurian23%
- Devonian6%
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
86 formations
- March Formation · Beekmantown Group24
- Esill Shale Formation23
- Brassfield Formation18
- Green Point Formation · Cow Head Group17
- Zitai Formation13
- Dawan Formation11
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The named rock units Drepanodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 62 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.
Drepanodus and its relatives
OrdovicianWhere Drepanodus and its relatives were recorded in the Ordovician.
Found in the same rock
1,108 taxa- Protopanderodus54 sites
- Acodus50 sites
- Scolopodus50 sites
- Drepanoistodus47 sites
- Oistodus47 sites
- Paltodus41 sites
- Paroistodus originalis33 sites
- Scandodus33 sites
- Baltoniodus31 sites
- Periodon28 sites
- Protopanderodus robustus25 sites
- Panderodus23 sites
- Oistodus lanceolatus21 sites
- Periodon macrodentatus21 sites
- Cordylodus20 sites
- Oneotodus19 sites
- Parapanderodus18 sites
- Spinodus18 sites
- Triangulodus18 sites
- Drepanoistodus basiovalis17 sites
- Nanorthis17 sites
- Protoprioniodus17 sites
- Acodus similaris16 sites
- Cornuodus longibasis16 sites
The Paleobiology Database records 179 sites for Drepanodus, 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
64 references- Stratigraphy and conodont paleontology of the Salamonie Dolomite and Lee Creek Member of the Brassfield Limestone (Silurian) in southeastern Indiana and adjacent Kentucky30
- Conodonts from the March and Oxford Formations in the Brockville Area, Ontario26
- Conodonts from the Estill Shale (Silurian, Kentucky and Ohio) and their Bearing on Multielement Taxonomy23
- Middle Ordovician (late Dapingian–Darriwilian) conodonts from the Cow Head Group and Lower Head Formation, western Newfoundland, Canada21
- Biostratigraphy of the Yangtze Gorge Area. Part (2) Early Paleozoic Era21
- Biodiversification of Early to Middle Ordovician conodonts: a case study from the Zitai Formation of Anhui Province, eastern China13
- Ordovician siberian Platform: Fauna and stratigraphy of the Lena Facial Zone; Novosibirski; Nauka Sib. Birch12
- Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina8
- An integrated biostratigraphical analysis of the Volkhov–Kunda (Lower Ordovician) succession at Fågelsång, Scania, Sweden8
- Ordovician system of the Lower Yangtze region in Jiangsu Province8
- Regional Stratigraphic Table of North China7
- Ordovician and Silurian Conodonts from the Langkawi Islands, Malaya, Part I6
Each of the 270 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. 52 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 Drepanodus
- Source
- Wikidata/Commons
- Credit
- USGS
- Licence
- Public Domain
- 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 itProtopanderodontidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pander 1856