Nothorthis

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
- ArchaeorthidaePBDB
- Diet
- suspension feederPBDB, for Orthida
- Life habit
- epifaunalPBDB, for Orthida
- Motility
- stationary, attachedPBDB, for Orthida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 18 million years on record.
The record covers at least 477.1 Mya to 458.2 Mya. No occurrence read is dated outside 486.85 Mya to 457.2 Mya.
78 occurrences of Nothorthis 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
78 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
- Dawan Formation11
- Valhallfonna Formation10
- Volkhov Formation9
- Volkhov Stage Formation7
- Dashaba Formation5
- Zhitai Formation3
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The named rock units Nothorthis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Nothorthis and its relatives
OrdovicianWhere Nothorthis and its relatives were recorded in the Ordovician.
Found in the same rock
453 taxa- Paurorthis parva19 sites
- Drepanoistodus forceps14 sites
- Productorthis aculeata14 sites
- Protopanderodus rectus14 sites
- Baltoniodus13 sites
- Ranorthis13 sites
- Drepanoistodus basiovalis12 sites
- Protoskenidioides11 sites
- Tritoechia10 sites
- Brachiopoda9 sites
- Euorthisina9 sites
- Periodon9 sites
- Punctolira8 sites
- Sinorthis8 sites
- Yangtzeella (Yangtzeella) poloi8 sites
- Cornuodus longibasis7 sites
- Lingulella7 sites
- Microzarkodina7 sites
- Trapezognathus quadrangulum7 sites
- Antigonambonites6 sites
- Nocturnellia6 sites
- Orthambonites6 sites
- Paralenorthis serica6 sites
- Saucrorthis6 sites
The Paleobiology Database records 76 sites for Nothorthis, 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
25 references- Conodonts and brachiopods from the Volkhov Stage (Lower Ordovician) microbial mud mound at Putilovo Quarry, north-western Russia14
- Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen11
- Brachiopod diversification during the Early–Mid Ordovician: an example from the Dawan Formation, Yichang area, central China9
- Brachiopods from the Dashaba Formation (Middle Ordovician) of Sichuan Province, south-west China5
- Regional stratigraphic table of Eastern China, AnHui Province4
- Brakhiopody nadsemejstv Orthacea, Dalmanellacea i Syntrophiacea iz nizhnego ordovika Pribaltiki [Lower Ordovician brachiopods of the superfamilies Orthacea, Dalmanellacea and Syntrophiacea of the Eastern Baltic]4
- Brachiopods of the redefined family Tritoechiidae from the Ordovician of Kazakhstan and South Urals3
- Stratigraphic Summary of the Southwestern Region of China3
- Early Ordovician Bivalves from Dali, West Yunnan, China2
- New Late Tremadoc-Early Arenig silicified brachiopods from the lower part of the San Juan Formation, Argentine Precordillera2
- New brachiopods from the Lower-Middle Ordovician (Billingen-Volkhov stages) of the East Baltic2
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective2
Each of the 78 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. 13 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 Nothorthis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Nothorthis was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itArchaeorthidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Cooper 1938