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Praerosaria paulonaria
Taxonomy
Praerosaria paulonaria was named by Dolin and Lozouet (2004). Its type specimen is MNHN-IM-2000-3770, a shell, and it is a 3D body fossil. Its type locality is Espibos, Gaas, which is in a Rupelian carbonate marl/sandstone in the Calcaire à Astéries Formation of France.
Synonymy list
| Year | Name and author |
|---|---|
| 2004 | Praerosaria paulonaria Dolin and Lozouet p. 69 |
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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.
†Praerosaria paulonaria Dolin and Lozouet 2004
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Dolin and P. Lozouet 2004 | La coquille mince, peu calleuse, de grande taille, est piriforme, allongee, a galbe fusele de profil, regulierement marginee. La spire est saillante, pseudombiliquee. La sole ventrale est tres legerement convexe. I:ouverrure est etroite, relativement rectiligne. Le canal siphonal, peu profond mais bien delimite, est largement ouvert en cornet ; il forme un pontet demesurement allonge et bien detache, finement margine dorsalement. Le pli rerminallamelleux est long et puissant, legerement plongeant, en position adaxiale ; il se prolonge par la lame interne courte et maigre, torse. La fossula aliforme, relativement petite, est tres faiblement concave, lisse ; I' aire columellaire est faiblement convexe. La levre interne parte 20 forts denticules columcllaircs, courts et serres, a cheval sur !'angulation, marquee quoique arrondie. Le bourrelet calleux de I' extremite adapicale de la levre interne constitue un eperon saillant, acumine. Le canal exhalant canalicule est legerement dejete adapicalement ; il forme un pontet calleux "en bee", bien degage, fortement margine dorsalement. La levre externe calleuse, aplanie, finement marginee, a quart anterieur pince, relevee par rapport au plan de la sole ventrale, parte 23 denticules labraux epais et regulierement espaces, relativement peu developpes. |