Scientific Classification
| Kingdom: Animalia |
| Phylum: Brachiopoda |
| Class: Rynchonellata |
| Order: Atrypida |
| Family: Atrypidae |
| Genus: Nucleospira |
| Species: Nucleospira concinna (Hall, 1843) |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
References
Linsley (1994): p. 199, figs. 6-36.
Wilson (2014): pp. 110, 111.
Remarks
Originally described as Atrypa concinna by Hall in 1843. Recombined as Nucleospira concinna by Hall in 1859.
From Wilson (2014, p. 111): “Small shell, with nearly circular outline and equally convex valves. Surface covered with fine spines or their bases. To 15-20 mm.”
From Carlton Brett and Gordon Baird: “A small globose brachiopod with surface covered in a mat of small spines; this is a long ranging (Emsian-Givetian, possibly Famennian?) Eastern Americas Realm species. It was generally thought to have its last major occurrence in the paper part of the Tully Formation (West Brook Beds).; Nucleospira concinna is characteristic of high diversity brachiopod-rich assemblages of two types. It is an eponymous member of the Tropidoleptus-Nucleospira Biofacies in calcareous mudstone and calcareous mudstones to limestones with a Pseudoatrypa-Megastrophia Biofacies of Brett et al., 2007, Palaios. Repeated reports of Nucleospira sp. from low diversity dark dysoxic facies of the Eifelian Bakoven black shale is highly anomalous and needs to be reconsidered we suspect that the small ovate brachiopods have been mis-identified.”
Online Resources
Paleobiology Database (as Atrypa concinna).
Media
Images
