Heterorthis

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
- HeterorthidaePBDB
- 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 10 million years on record.
The record covers at least 459.7 Mya to 449.5 Mya. No occurrence read is dated outside 461.1 Mya to 443.1 Mya.
31 occurrences of Heterorthis 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
31 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
22 formations
- Lower Ktaoua Formation · Ktaoua Group3
- Spy Wood Grit Formation3
- Upper Tiouririne Formation · Ktaoua Group2
- Pen-y-planeau Siltstone Formation1
- Swch Gorge Tuff Formation1
- Cheney Longville Formation1
Loading coastlines…
The named rock units Heterorthis 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.
Heterorthis and its relatives
OrdovicianWhere Heterorthis and its relatives were recorded in the Ordovician.
Found in the same rock
329 taxa- Dalmanella9 sites
- Bicuspina8 sites
- Rostricellula8 sites
- Schizocrania8 sites
- Drabovia7 sites
- Rafinesquina7 sites
- Horderleyella6 sites
- Howellites6 sites
- Paracraniops6 sites
- Tallinnella6 sites
- Dalmanella salopiensis5 sites
- Dolerorthis5 sites
- Kjaerina5 sites
- Onniella5 sites
- Brongniartella4 sites
- Calymenella4 sites
- Dinorthis berwynensis4 sites
- Flexicalymene4 sites
- Kloucekia4 sites
- Leptaena4 sites
- Lingulella ovata4 sites
- Modiolopsis4 sites
- Orbiculoidea4 sites
- Platystrophia4 sites
The Paleobiology Database records 30 sites for Heterorthis, 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
20 references- Ordovician Brachiopoda from the Shelve District, Shropshire5
- Integrated brachiopod-based bioevents and sequence-stratigraphic framework for a Late Ordovician subpolar platform, eastern Anti-Atlas, Morocco3
- Evolution, succession & replacement in the type Caradoc (Ordovician) benthic faunas of England3
- Pre-Hirnantian (latest Ordovician) benthic community assemblages: controls and replacements in a siliciclastic-dominated platform of the eastern Anti-Atlas, Morocco2
- Caradoc marine benthic communities of the South Berwyn Hills, North Wales2
- The biostratigraphy of the Ordovician of Bohemia2
- Late Ordovician brachiopods from Peru and their palaeobiogeographical relationships1
- Upper Ordovician brachiopods from the Montagne Noire (France): endemic Gondwanan predecessors of Prehirnantian low-latitude immigrants1
- The Ordovician succession from the western Iberian Ranges (NE Spain): a review with new data1
- The base of the Silurian System in Tasmania1
- Upper Ordovician brachiopods from the Montagne Noire1
- Ordovician brachiopods of Bolivia: Succession of assemblages, climate control, affinity to Anglo-French and Bohemian provinces1
Each of the 31 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. 8 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 Heterorthis
- Source
- iDigBio
- Credit
- via iDigBio
- 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 itHeterorthidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.