| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Galeodinopsis tiberiana
Taxonomy
Rissoa tiberiana was named by Coppi (1876). It is extant. Its type locality is La Tagliata, which is in a Piacenzian carbonate sandstone in Italy.
It was recombined as Galeodinopsis tiberiana by Sacco (1895) and Garilli (2008).
It was recombined as Galeodinopsis tiberiana by Sacco (1895) and Garilli (2008).
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1876 | Rissoa tiberiana Coppi p. 201–202 |
| 1895 | Galeodinopsis tiberiana Sacco |
| 1990 | Manzonia fariai Rolán and Fernandes p. 64–65 figs. pl. 1, figs. 4–6 |
| 2004 | Alvania fariae Landau et al. p. 41 figs. pl. 7, figs. 3–4 |
| 2008 | Galeodinopsis tiberiana Garilli pp. 43 - 47 fig. 81–99 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Galeodinopsis tiberiana Coppi 1876
show all | hide all
Invalid names: Galeodinopsis fariai Rolán and Fernandes 1990 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. Garilli 2008 | Shell conical, sturdy, reaching 3.75 mm in height and 2.75 mm in width. Protoconch multispiral, conical, with 2–2.2 convex whorls and a rather immersed nucleus. Protoconch I consists of about 0.7–0.8 whorls, with a netted sculpture, consisting of 7–8 very thin spiral lirae and numerous, irregular, short and very narrow axial segments occurring in interspaces between lirae. Protoconch II is sculptured by very small, sparse granules, fused into 2–4 discontinuous ridges on central and abapical portions of latter part of last whorl. Groups of granules form very short, prosocline segments on central area, mainly close to protoconch/teleoconch transition, which is marked by a quite sinous and thin lip. Teleoconch formed by 3–3.5 convex whorls, sculptured by a primary pattern of strong, slightly sinuous and opisthocline ribs, numbering 12–14 on penultimate whorl, becoming very weak to lacking toward shell base. Ribs are covered by a secondary spiral sculpture, formed by flat narrower cords, numbering 4–5 on penultimate whorl, becoming more marked on shell base. Each cord bears a pitted microsculpture, consisting of microscopic subcircular pores forming 8–10 spiral alignments (Figures 99). Between cords, numerous, closely spaced, very fine spiral ridges appear. They are formed by rough prismatic, tooth-like elements, extending perpendicularly from shell surface. At their base, ridges have a lamella-like expansion which covers the interspaces occurring between them. Last whorl inflated, well-expanded, comprising about 3⁄4 of total shell height, often bearing 1–2 strong varices, most frequently just before the outer lip. Aperture ovate, very rounded anteriorly, weakly angulated posteriorly, comprising about little less than 1⁄2 and 2⁄3 of total shell and last whorl height, respectively. Outer lip sinuous, weakly opisthocline; internally smooth, with a thin rim on its edge; externally with a very marked varicose swelling, covered by spiral sculpture, and having a narrow ridge on its base, toward aperture, so that it appears double-rimmed. Inner lip weakly curved, with a very narrow columellar thicknening, forming an obsolete umbilical chink. Shell color white in Recent material. |