Buvignieria piserai Kaim, 2004


Sugerowana cytacja: Gryz, P. 2020. Buvignieria piserai Kaim 2004. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Buvignieria+piserai)

Diagnoza

Teleoconch composed of up to two whorls, ornamented with axial ribs (approx. 22–23 per whorl) and one spiral rib. Spiral rib situated on adapical part of whorl, forming weak angulation of shell. Ornament only at adapical part of body whorl. Base demarcated by spiral rib and ornamented by one more spiral rib below. Surface of teleoconch covered by fine, densely packed lirae. Protoconch 2 ornamented by oblique or spiral threads.


Porównanie

Differs from the other species of Buvignieria in having a lower protoconch and only two whorls of the teleoconch. Ornamentation is similar to paratype specimen SMNS 63302 of B. calloviana.

Autekologia


Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Quenstedtoceras lamberti Zone, Late Callovian (Mid Jurassic).

Materiały muzealne

Six shells.

Literatura

Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183.


Specyfikacja

Królestwo
ANIMALIA 

Typ
MOLLUSCA

Podtyp
CONCHIFERA

Gromada
GASTROPODA

Podgromada
PROSOBRANCHIA

Rząd
Ptenoglossa

Rodzina
Rissoidae

Rodzaj
Buvignieria

Gatunek
Buvignieria piserai

Synonimy

Populacja typowa gatunku

Holotyp

MZ VIII Mg 4241/1.

Locus typicus

Łuków (block in glacial drift), Poland.

Stratum typicum

Quenstedtoceras lamberti Zone, Late Callovian (Mid Jurassic).


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Created by Administrator on 2020/06/28 10:21

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