Carinathilda squiresi Kaim, 2004


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

Diagnoza

Shell broadly cone-shaped, 1.47 times as high as broad. Protoconch almost  coaxial, smooth. Teleoconch starting with two prominent and one subsutural spiral rib. Abapical rib becomin keel on first teleoconch whorl. Spiral ribs crossed by weakly prosocline axial ribs (53–54 ribs per whorl). Surface of teleoconch covered by spiral microornamentation.

Porównanie

Differs from the most similar C. microstriata by its larger and non-ornamented protoconch and abapically situated keel. The latter is situated medially at C. microstriata.

Autekologia


Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Sample N1, Busnardoides campylotoxus Zone, Early Valanginian (Early Cretaceous).

Materiały muzealne

30 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
Heterostropha

Rodzina
Mathildidae

Rodzaj
Carinathilda

Gatunek
Carinathilda squiresi

Synonimy

Populacja typowa gatunku

Holotyp

ZPAL Ga.9/270.

Locus typicus

Wąwał near Tomaszów Mazowiecki, Poland.

Stratum typicum

Sample N1, Busnardoides campylotoxus Zone, Early Valanginian (Early Cretaceous).


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Utworzone 2020/07/02 15:31 przez Administrator

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