Paralenorthis alata de Sowerby and Murchison 1839 (lamp shell)

Rhynchonellata - Orthida - Orthidae

Alternative combinations: Lenorthis alata, Orthis alata, Spirifer alatus

Synonyms: Lenorthis carausii Davidson 1868, Orthis carausii Davidson 1868

Full reference: J. C. de Sowerby and R. I. Murchison. 1839. The Silurian System. Part 2. Organic Remains. The Silurian System 2:579-768

Belongs to Paralenorthis according to J. Reyes-Abril et al. 2010

See also Bates 1969, Davidson 1869, de Sowerby and Murchison 1839 and Jaanusson and Bassett 1993

Sister taxa: Paralenorthis alabamensis, Paralenorthis buttsi, Paralenorthis carlottoi, Paralenorthis costata, Paralenorthis estenaensis, Paralenorthis immitatrix, Paralenorthis lolae, Paralenorthis luritjaorum, Paralenorthis marshalli, Paralenorthis minusculus, Paralenorthis mollesensis, Paralenorthis orbicularis, Paralenorthis panderania, Paralenorthis proava, Paralenorthis rgaitensis, Paralenorthis riojanus, Paralenorthis robustus, Paralenorthis semnanensis, Paralenorthis serica, Paralenorthis suriensis

Type specimens:

  • Paralenorthis alata: GSM6868, a valve (Internal mould of brachial valve).
  • Lenorthis carausii: BB. 31875, a valve (Internal mould of brachial valve).

Ecology: stationary epifaunal suspension feeder


• Dobrotivian of Spain (1 collection)

• Ordovician of Bolivia (1), Spain (2), the United Kingdom (4)

Total: 8 collections including 9 occurrences

Show more details

Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.