Tetrarhynchiidae
Hectonichus · 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
- HemithiridoideaPBDB
- Diet
- suspension feederPBDB, for Rhynchonellida
- Life habit
- epifaunalPBDB, for Rhynchonellida
- Motility
- stationaryPBDB, for Rhynchonellida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 175 million years on record.
The record covers at least 241.464 Mya to 66 Mya. No occurrence read is dated outside 247 Mya to 61.66 Mya.
2,744 occurrences of Tetrarhynchiidae on record, most of them in the Middle Jurassic. 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
2,744 occurrences- Middle Triassicunder 1%
- Late Triassicunder 1%
- Early Jurassic42%
- Middle Jurassic44%
- Late Jurassic7%
- Early Cretaceous2%
- Late Cretaceous5%
- Paleoceneunder 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
165 formations
- Dhruma Formation · Shaqra Group338
- Namyau Beds Formation155
- Nevian Formation65
- Rio Palomar Formation56
- Upper Chalk Formation · Chalk Group48
- Antalo Formation41
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The named rock units Tetrarhynchiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 141 further formations hold fewer occurrences each and are not listed. 1,040 occurrences have no formation on record, which is common for older literature.
Tetrarhynchiidae and its relatives
Middle JurassicWhere Tetrarhynchiidae and its relatives were recorded in the Middle Jurassic.
Found in the same rock
781 taxa- Plagiostoma94 sites
- Weyla alata81 sites
- Chlamys textoria77 sites
- Lobothyris punctata69 sites
- Quadratirhynchia61 sites
- Actinostreon57 sites
- Weyla titan49 sites
- Nanogyra auricularis43 sites
- Lobothyris ovatissima41 sites
- Montlivaltia40 sites
- Quadratirhynchia crassimedia40 sites
- Ctenostreon rugosum39 sites
- Pinna38 sites
- Entolium (Entolium) corneolum33 sites
- Serpula32 sites
- Gryphaea (Bilobissa) sublobata30 sites
- Modiolus30 sites
- Cymatorhynchia29 sites
- Plicatula (Harpax) spinosa28 sites
- Spiriferina28 sites
- Chaetetes (Pseudoseptifer) liasica27 sites
- Quadratirhynchia attenuata27 sites
- Lithophaga25 sites
- Pecten (Pecten) dentatus25 sites
The Paleobiology Database records at least 1,450 sites for Tetrarhynchiidae, 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
182 references- Les brachiopodes liasiques des Pyrénées: paléontologie, biostratigraphie, paléobiogéographie et paléoenvironnements241
- Jurassic brachiopods of Saudi Arabia220
- The Brachiopoda of the Namyau Beds, Northern Shan States, Burma217
- Palokologie und zeitliche Verbreitung benthischer Faunengemeinschaften im Unterjura von Chile136
- Le Jurassique D`Arabie Centrale115
- Mass extinction and recovery of the Early Toarcian (Early Jurassic) brachiopods linked to climate change in Northern and Central Spain92
- Brachiopodes du Jurasique Inférieur et moyen d'Arabie Saoudite centrale88
- Laurin, 198476
- El Jurasico Inferior en la seccion de Almonacid de la Cuba (sector central de la Cordillera Iberica, Zaragoza, Espana) [Lower Jurassic at the Almonacid de la Cuba section (central sector of the Iberian Range, Zaragoza, Spain)]74
- Jurassic rhynchonellids: internal structures and taxonomic revisions70
- The Jurassic and Lower Cretaceous of Wadi Hajar, southern Yemen56
- Palökologie benthischer Faunen aus dem Unter-Toarc SW-Europas53
Each of the 2,744 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. 170 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 Tetrarhynchiidae
- Source
- Wikidata/Commons
- Credit
- Hectonichus
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Tetrarhynchiidae 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 itHemithiridoidea through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ager 1965