| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Unklesbayella geinitzi
Taxonomy
Allorisma geinitzii was named by Meek (1867). It is not a trace fossil.
It was recombined as Allorisma (Sedgwickia) geinitzii by Meek (1871); it was recombined as Pleurophorella geinitzi by Morningstar (1922); it was recombined as Unklesbayella geinitzi by Hoare et al. (1978).
It was recombined as Allorisma (Sedgwickia) geinitzii by Meek (1871); it was recombined as Pleurophorella geinitzi by Morningstar (1922); it was recombined as Unklesbayella geinitzi by Hoare et al. (1978).
Synonymy list
| Year | Name and author |
|---|---|
| 1867 | Allorisma geinitzii Meek p. 170 |
| 1871 | Allorisma (Sedgwickia) geinitzii Meek p. 219 |
| 1922 | Pleurophorella geinitzi Morningstar p. 235 figs. pl. 13 f. 18-19 |
| 1978 | Unklesbayella geinitzi Hoare et al. p. 1032 figs. pl. 2 f. 10-11; txt. f. 3 |
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.
†Unklesbayella geinitzi Meek 1867
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. D. Hoare et al. 1978 | Shell small, equivalved, subquadrate, inequilateral; beaks small, incurved, prosogyrate; escutcheon present, lunule absent; anterior margin narrowly rounded into gently convex ventral margin; posterior margin truncate, forming right angle with dorsal margin and obtuse angle with ventral margin; umbo raised above dorsal margin; pronounced umbonal ridge extending to posteroventral extremity; concave posterodorsal area may or may not have two or three faint radiating ridges; surface sculptured by fine closely spaced pustules arranged in radiating and concentric rows. |