Drepanoistodus
Professor Richard J. Aldridge · 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
- DrepanoistodontidaePBDB
- 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 46 million years on record.
The record covers at least 486.85 Mya to 440.5 Mya. No occurrence read is dated outside 538.8 Mya to 419.62 Mya.
664 occurrences of Drepanoistodus 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
664 occurrences- Cambrian1%
- Ordovician96%
- Silurian3%
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
143 formations
- Welling Formation59
- San Juan Formation29
- Shiyanhe Formation22
- Toila Formation22
- Green Point Formation · Cow Head Group22
- Volkhov Stage Formation21
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The named rock units Drepanoistodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 119 further formations hold fewer occurrences each and are not listed. 23 occurrences have no formation on record, which is common for older literature.
Drepanoistodus and its relatives
OrdovicianWhere Drepanoistodus and its relatives were recorded in the Ordovician.
Found in the same rock
934 taxa- Panderodus67 sites
- Baltoniodus57 sites
- Panderodus gracilis51 sites
- Protopanderodus42 sites
- Periodon41 sites
- Protopanderodus rectus41 sites
- Oulodus39 sites
- Drepanodus33 sites
- Microzarkodina33 sites
- Paroistodus32 sites
- Phragmodus undatus30 sites
- Triangulodus28 sites
- Plectodina27 sites
- Acodus26 sites
- Belodina26 sites
- Decoriconus26 sites
- Cornuodus longibasis24 sites
- Belodina compressa23 sites
- Acodus similaris22 sites
- Amorphognathus ordovicicus22 sites
- Oistodus22 sites
- Panderodus feulneri22 sites
- Panderodus unicostatus22 sites
- Scolopodus striatus22 sites
The Paleobiology Database records 446 sites for Drepanoistodus, 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
112 references- Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina46
- Articulate brachiopods of the Viola Formation (Ordovician) in the Arbuckle Mountains, Oklahoma42
- Conodonts and brachiopods from the Volkhov Stage (Lower Ordovician) microbial mud mound at Putilovo Quarry, north-western Russia39
- An Early to Middle Ordovician succession of conodont faunas at Mäekalda, northern Estonia31
- Middle Ordovician (late Dapingian–Darriwilian) conodonts from the Cow Head Group and Lower Head Formation, western Newfoundland, Canada27
- Upper Ordovician – Upper Silurian conodont biostratigraphy, Devon Island and southern Ellesmere Island, Canadian Arctic Islands, with implications for regional stratigraphy, eustasy, and thermal maturation24
- Upper Ordovician conodont biostratigraphy and biofacies from the Sigang section, Neixiang, Henan, central China22
- Biostratigraphy of the Yangtze Gorge Area. Part (2) Early Paleozoic Era22
- Biodiversification of Early to Middle Ordovician conodonts: a case study from the Zitai Formation of Anhui Province, eastern China20
- Conodonts from a platform-to-basin transect, Lower Ordovician to Lower Silurian, northeastern British Columbia, Canada20
- Late Ordovician- Early Silurian conodont biostratigraphy and thermal maturity, Hudson Bay Basin19
- Ordovician conodonts from the Ship Point and Bad Cache Rapids Formations, Melville Peninsula, southeastern District of Franklin19
Each of the 664 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. 100 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 Drepanoistodus
- Source
- GBIF
- Credit
- Professor Richard J. Aldridge
- 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 itDrepanoistodontidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lindstrom 1971