Vogelgnathus unicus


Sugerowana cytacja: Dzik 2014. Vogelgnathus unicus Klapper, Uyeno, Armstrong et Telford 2004. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Vogelgnathus+unicus+)

Diagnoza

Short denticles of Pelements, merging together into a blade with undulated margin in adult specimens; M elements with short processes of subequal length.

Porównanie

The type series of Pelements of Mehlina? unica Klapper et al., 2004 is characteristic enough in the pattern of denticulation to make identification of this species rather safe, even if the rest of its apparatus was not identified by Klapper et al.. The similarity of Pelements to geologically older Mehlina robustidentata sp. n. may be accidental but a possibility cannot be excluded that V. unicus and V. variabilis independently paedomorphically developed from closely related species classified here in Mehlina. If truly this was the case, as suggested by the sympatric occurrence of these species of Vogelgnathus, the range of the genus should be enlarged to preserve its monophyly.

Autekologia

Występowanie geograficzne

Jabłonna;
Łagów, Miedzianka, and Kowala.

Zasięg czasowy

The K. crepida Zone;
the C. quadrantinodosa to P. trachytera Zones. 

Materiały muzealne

ZPAL: 1,801 specimens.

Literatura

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.

Specyfikacja

Królestwo
ANIMALIA 

Typ
CHORDATA 

Podtyp
CONODONTA

Gromada
CONODONTOPHORIDA

Podgromada
EUCONODONTA

Rząd
Ozarkodinida

Podrząd
Ozarkodinina

Rodzina
Francodinidae

Rodzaj
Vogelgnathus

Gatunek
Vogelgnathus unicus

Synonimy

Populacja typowa gatunku

Holotyp

Locus typicus

Stratum typicum

Sample COB-19 from depth 101.5-101.7 m, upper member of the Long Rapids Formation of Ontario, rhomboidea Zone.


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Created by Administrator on 2014/12/10 18:37

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