Carinathilda saulae Kaim, 2004


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

Diagnoza

Shell broadly cone-shaped, 1.47 times as high as broad. Protoconch highly medioaxial, ornamented by abapical axial folds. Teleoconch starting with two spiral ribs. Lower rib becoming keel on second teleoconch whorl. On second and third teleoconch whorls, two secondary spiral ribs appearing. Spiral ribs crossed by weakly opisthocytic axial ribs (95–100 ribs per whorl). At intersections, blunt nodes appearing. Surface of teleoconch covered by spiral microornamentation.

Porównanie

The most similar to C. calloviensis Gründel, 1997 but the latter differs in the stable number of spiral ribs during ontogeny. From C. microstriata and C. squiresi differs in a much stronger spiral keel. C. kieli differs from C. saulae by the distinct nodes on the intersections of the axial and spiral ribs and the more sparsely distributed axial ribs.

Autekologia


Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Saynoceras verrucosum Zone, Late Valanginian (Early Cretaceous).

Materiały muzealne

Only one shell.

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
Heterostropha

Rodzina
Mathildidae

Rodzaj
Carinathilda

Gatunek
Carinathilda saulae

Synonimy

Populacja typowa gatunku

Holotyp

ZPAL Ga.9/278.

Locus typicus

Wąwał near Tomaszów Mazowiecki, Poland.

Stratum typicum

Saynoceras verrucosum Zone, Late Valanginian (Early Cretaceous).


Tags:
Utworzone 2020/07/02 15:00 przez Piotr Gryz

This wiki is licensed under a Creative Commons 2.0 license
XWiki Enterprise 6.4.8 - Documentation