This dataset contains the digitized treatments in Plazi based on the original journal article Schemm-Gregory, Mena (2008): A new species of Filispirifer (Brachiopoda: Delthyridoidea) from the Dra Valley, Morocco (Lower Devonian). Zootaxa 1739: 53-68, DOI: 10.5281/zenodo.181444
Abstract
A new species of Filispirifer is described from the Lower Devonian Assa Formation of the Dra Valley (Morocco). Filispirifer hamadae n. sp. differs from the other taxa of Filispirifer in having a smaller shell, fewer costae, a lower ventral interarea, a smaller ventral process, and a less conspicuous dorsal adductor field. Due to their micro-ornamentation, the capillate Rhenish delthyridoid genera, Filispirifer and Mauispirifer, are excluded from the fimbriate family Acrospiriferidae and put together in the new family Filispiriferidae. The evolutionary lineage of Filispirifer and its palaeobiogeographic occurrence are briefly described.
Key words: Filispirifer, Filispiriferidae, Delthyridoidea, Brachiopoda, Lower Devonian, Morocco
Schemm-Gregory M, plazi (2008). A new species of Filispirifer (Brachiopoda: Delthyridoidea) from the Dra Valley, Morocco (Lower Devonian). Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.5281/zenodo.181444 accessed via GBIF.org on 2026-06-14.
