Orthonema
via iDigBio · 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
- OrthonematidaePBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 76 million years on record.
The record covers at least 330.3 Mya to 254.14 Mya. No occurrence read is dated outside 335.9 Mya to 251.902 Mya.
143 occurrences of Orthonema on record, most of them in the Permian. 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
143 occurrences- Carboniferous41%
- Permian59%
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
50 formations
- Flechado Formation14
- Loray Formation · Arcturus Group13
- Palmarito Formation10
- Shakhtau Reef Formation8
- Park City Formation6
- Kaibab Formation6
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The named rock units Orthonema has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 further formations hold fewer occurrences each and are not listed. 4 occurrences have no formation on record, which is common for older literature.
Orthonema and its relatives
PermianWhere Orthonema and its relatives were recorded in the Permian.
Found in the same rock
1,430 taxa- Meekospira27 sites
- Crinoidea21 sites
- Prodentalium canna17 sites
- Gastropoda16 sites
- Goniasma lasallense16 sites
- Euphemites14 sites
- Soleniscus14 sites
- Worthenia corrugata13 sites
- Worthenia12 sites
- Amphiscapha proxima11 sites
- Anomphalus11 sites
- Derbyia11 sites
- Naticopsis11 sites
- Nuculavus levatiformis11 sites
- Strobeus11 sites
- Apachella10 sites
- Bryozoa10 sites
- Glabrocingulum10 sites
- Goniasma10 sites
- Streptacis10 sites
- Strobeus paludinaeformis10 sites
- Astartella9 sites
- Astartella concentrica9 sites
- Girtyspira9 sites
The Paleobiology Database records 101 sites for Orthonema, 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
42 references- Permian marine paleoecology and its implications for large-scale decoupling of brachiopod and bivalve abundance and diversity during the Lopingian (Late Permian)12
- Paleontology of the Permian Loray Formation in White Pine County, Nevada12
- Middle Pennsylvanian gastropods from the Flechado Formation, north-central New Mexico11
- Paleontology, Taphonomy, and Paleoecology of the Palmarito Formation (Permian of Venezuela)10
- The surficial geology, paleontology, and paleoecology of the Finis Shale (Pennsylvanian, Lower Virgilian) in Jack County, Texas9
- Lower Permian gastropods of Shakhtau (Asselian–Sakmarian boundary beds, southern Cisuralia)8
- Stratigraphy and brachiopod and molluscan paleontology of the Red Tanks Formation (Madera Group) near the Pennsylvanian–Permian boundary, Lucero uplift, west-central New Mexico8
- Some murchisoniid gastropods from the Middle and Upper Carboniferous of the central part of the Russian Plate8
- Permian Gastropoda of the southwestern United States: Cerithiacean, Acteonacea, and Pyramidellacea7
- Silicified gastropods from the Permian Phosphoria rock complex of Wyoming6
- Gastropods and chitons from Perak, Malaysia. Part 3: the murchisoniids, cerithiids, loxonematids, and subulitids4
- Molluscan fauna from the Permian Kaibab Formation, Walnut Canyon, Arizona4
Each of the 143 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. 30 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 Orthonema
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
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 itOrthonematidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Meek and Worthen 1862