Scientific Classification
| Kingdom: Animalia |
| Phylum: Brachiopoda |
| Class: Rynchonellata |
| Order: Athyridida |
| Family: Rhynchospirinidae |
| Genus: Leptospira |
| Species: Leptospira gibbosa (Hall, 1860) |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Moscow Formation |
| Kashong Member |
| Tichenor Member |
| Ludlowville Formation |
| Jaycox Member |
| Centerfield Member |
| Skaneateles Formation |
| Mottville member |
| Oatka Creek Formation |
| Mount Marion Formation |
References
Hall (1867) (as Trematospira gibbosa): p. 272, pl. 45.
Linsley (1994): p. 193, figs. 7-15.
Wilson (2014): pp. 108, 109.
Remarks
Originally described as Trematospira gibbosa by Hall in 1860. Recombined as Leptospira gibbosa by Boucot, Johnson, and Staton in 1964. Recombined as Rhyncholeptospira gibbosa by Ceccolini and Cianferoni in 2023 due to Leptospira being previously used to describe a mollusk in 1840 by Swainson.
From Wilson (2014, p. 108): “Small to medium-sized shell. Surface with 9-10 angular placations, two in the sinus of the pedicle valve, three on the fold of the brachial valve. Surface with growth lines crossing plications to produce a zigzag pattern. To 15 mm.”
From Carlton Brett and Gordon Baird: “A rare brachiopod that is generally found in association with high diversity (Pseudoatrypa-Megastrophia) biofacies; it is most common in the Centerfield and Jaycox members of the Ludlowville Fomation and Tichenor member of the Moscow. Not reported outside the Appalchian Basin; however, species of Camarospira perhaps synonymous with L gibbosa are reported from Eifelian Columus and Jeffersonvile limesones.. Although not reported from the Onondaga, Leptospira and Trematospira are known from older Silurian and Helderberg faunas and thus L. gibbosa is probably descended from EAR ancestors.”
Online Resources
[Paleobiology Database] (Genus-level page; as Rhyncholeptospira) (https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=483606&is_real_user=1)
(Genus-level page of now-incorrect genus Trematospira, which still links to some occurrences of Leptospira gibbosa) (https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=29704&is_real_user=1)
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