Palmatolepis trachytera


Sugerowana cytacja: Dzik 2015. Palmatolepis trachytera Ziegler 1960. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Palmatolepis+trachytera+)

Diagnoza

Platform of Pelements with sharp ridge or a row of tubercles along its anterior margin.

Porównanie

Pelements are flat and sinous in appearance. They vary much in development of the posterior pointed lobe. In early populations the posterior lobe is sharply pointed and elongate, whereas in later populations it may be virtually missing.

The Pelements bear a minute cusp and denticles in proximity of it are lower than others. The processes meet at an angle in the plane of the platform, which results in its boomerang-like shape. Width and ornamentation of the platform vary and extremely smooth, wide-platform elements resemble somewhat elements of Conditolepis.

The symmetry transistion series elements differ from those of P. schindewolfi in a more generalized appearance, that is, in usual domination of the cusp, sharp denticulation and their less sinuous arrangement. Otherwise they are similar to those of other Palmatolepis species.

Autekologia

Występowanie geograficzne

Łagów, Ostrówka, Miedzianka, Kowala, and Jabłonna.

Zasięg czasowy

Zone of its own. 

Materiały muzealne

ZPAL: 989 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
Niezaklasyfikowane

Gatunek
Palmatolepis trachytera

Synonimy

Populacja typowa gatunku

Holotyp

Locus typicus

Stratum typicum

Sample 10 of gray cephalopod limestone 0.3 m above layer with Prolobites delphinus and Platyclymenia involuta 


Tags:
Created by Jerzy Dzik on 2015/06/01 14:09

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