Skenidioides
Skenidioides is an extinct genus of brachiopods which existed during the Ordovician, Silurian, and Devonian of what is now Australia, Canada, China, the Czech Republic, Italy, Morocco, Poland, Ukraine, the United States, Belarus, Estonia, Lithuania, Mexico, Norway, Sweden, the United Kingdom, Venezuela, Ireland, Kazakhstan, the Russian Federation, and Argentina. It was described by Schuchert and Cooper in 1931, and the type species is S. billingsi. A new species, S. tatyanae, was described by Andrzej Baliński in 2012, from the early Devonian of Ukraine. The species epithet refers to Tatyana Lvovna Modzalevskaya.

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
- SkenidiidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 77 million years on record.
The record covers at least 468 Mya to 390.5 Mya. No occurrence read is dated outside 477.1 Mya to 387.95 Mya.
614 occurrences of Skenidioides on record, most of them in the Silurian. 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
614 occurrences- Ordovician37%
- Silurian50%
- Devonian12%
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
214 formations
- Solvik Formation27
- Kangaroo Creek Formation21
- Roberts Mountain Formation17
- Fosses Formation10
- Riga Formation8
- Paprieniai Formation8
Loading coastlines…
The named rock units Skenidioides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 190 further formations hold fewer occurrences each and are not listed. 156 occurrences have no formation on record, which is common for older literature.
Skenidioides and its relatives
SilurianWhere Skenidioides and its relatives were recorded in the Silurian.
Found in the same rock
2,194 taxa- Leangella scissa81 sites
- Eoplectodonta (Eoplectodonta) duplicata80 sites
- Mendacella mullockiensis55 sites
- Kozlowskites gracilis44 sites
- Leptaena42 sites
- Dolerorthis37 sites
- Leptaena (Leptaena) haverfordensis35 sites
- Stegerhynchus pusillum35 sites
- Atrypa34 sites
- Isorthis33 sites
- Paracraniops32 sites
- Bryozoa31 sites
- Dicoelosia osloensis31 sites
- Crinoidea29 sites
- Plectatrypa (Plectatrypa)29 sites
- Nucleospira28 sites
- Triplesia woodlandensis28 sites
- Dalejina27 sites
- Rugosa27 sites
- Stricklandia lens27 sites
- Dolerorthis sowerbyiana25 sites
- Howellella25 sites
- Sowerbyella25 sites
- Dalmanella24 sites
The Paleobiology Database records 589 sites for Skenidioides, 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
165 references- Early Llandovery brachiopods of Wales79
- Silurian brachiopods Dictyonellida, Strophomenida, Productida, Orthotetida, Protorthida and Orthida from Estonia46
- Middle and Late Ordovician brachiopods from the eastern Klamath Mountains, northern California30
- Pridolian and early Gedinnian age brachiopods from the Roberts Mountains Formation of central Nevada18
- Relict Ordovician brachiopod faunas in the Lower Silurian of Asker, Oslo Region, Norway17
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America11
- Brachiopod communities of the Lithuanian Silurian11
- The Barr and lower Ardmillan series (Caradoc) of the Girvan District, south-west Ayrshire, with descriptions of the Brachiopoda11
- Latest Ordovician-Silurian articulate brachiopods and biostratigraphy of the Avalanche Lake area, southwestern District of Mackenzie, Canada10
- Late Ordovician (Ashgillian) brachiopods from the region of the Sambre and Meuse Rivers, Belgium10
- Review of the Ordovician rhynchonelliformean Brachiopoda of the East Baltic: Their distribution and biofacies9
- Brachiopod and Conodont Distribution at the Wenlock - Ludlow boundary of Lithuania8
Each of the 614 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. 153 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 Skenidioides
- 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 of Skenidioides 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSkenidiidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Schuchert and Cooper 1931