Orthis
porshunta · CC BY-SA 3.0 · 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
- OrthidaePBDB
- 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 308 million years on record.
The record covers at least 477.1 Mya to 168.2 Mya. No occurrence read is dated outside 488.9 Mya to 165.3 Mya.
273 occurrences of Orthis 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
273 occurrences- Cambrianunder 1%
- Ordovician75%
- Silurian13%
- Devonian9%
- Carboniferousunder 1%
- Permian3%
- Middle Jurassicunder 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
98 formations
- Kanosh Shale Formation21
- Lynna Formation10
- Tully Formation · Tully Group9
- Sillaoru Formation9
- Swan Peak Formation8
- Dawan Formation8
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The named rock units Orthis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 74 further formations hold fewer occurrences each and are not listed. 44 occurrences have no formation on record, which is common for older literature.
Orthis and its relatives
OrdovicianWhere Orthis and its relatives were recorded in the Ordovician.
Found in the same rock
1,616 taxa- Orthoceras21 sites
- Didymograptus20 sites
- Sinorthis19 sites
- Illaenus16 sites
- Atrypa15 sites
- Dalmanella15 sites
- Dalmanites15 sites
- Leptaena rhomboidalis14 sites
- Linguloidea14 sites
- Atrypa reticularis13 sites
- Ctenodonta13 sites
- Dictyonema12 sites
- Favosites12 sites
- Gastropoda12 sites
- Hemipronites imbricata12 sites
- Maclurites12 sites
- Mastigobolbina12 sites
- Paurorthis12 sites
- Beyrichia11 sites
- Calymene11 sites
- Chonetes11 sites
- Ecculiomphalus11 sites
- Eoplectodonta (Eoplectodonta) transversalis11 sites
- Fenestella11 sites
The Paleobiology Database records 252 sites for Orthis, 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
87 references- Lower Ordovician detailed stratigraphic sections for western Utah21
- The Lower Palaeozoic fossils of the Northern Shan States, Burma. With a section of Ordovician cystidea by F. A. Bather [q.v.]16
- Testing for faunal stability across a regional biotic transition: quantifying stasis and variation among recurring coral-rich biofacies in the Middle Devonian Appalachian Basin14
- Resolving early Mid-Ordovician (Kundan) bioevents in the East Baltic based on brachiopods13
- Stratigraphic Summary of the Southwestern Region of China13
- Lower Ordovician trilobites from western Utah and eastern Nevadea12
- Early Llandovery brachiopods of Wales11
- Brachiopod macrofaunal distribution through the upper Volkhov - lower Kunda (Low Ordovician) rocks, Lynna River, St. Petersburg region10
- The Clinton of Western and Central New York9
- Regional Stratigraphic Table of North China8
- Brakhiopody nadsemejstv Orthacea, Dalmanellacea i Syntrophiacea iz nizhnego ordovika Pribaltiki [Lower Ordovician brachiopods of the superfamilies Orthacea, Dalmanellacea and Syntrophiacea of the Eastern Baltic]6
- Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas6
Each of the 273 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. 75 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 Orthis
- Source
- Wikidata/Commons
- Credit
- porshunta
- Licence
- CC BY-SA 3.0
- 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
Everything alive alongside itOrthidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Dalman 1828)