Oslodus semisymmetricus


Sugerowana cytacja: Moczyński 2018. Oslodus semisymmetricus (Hamar, 1966) Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Paltodus+semisymmetricus)

Diagnoza

Porównanie

the M element with long cusp and elements of the symmetry transistion series with two sharp ridges at their sides and internally expanding bases The morphology of elements of the species is closely similar to that of Besselodus arcticus Aldridge, 1982 and it is a matter of dispute whether this is an effect of a secondary development of geniculation of the M elements in the Dapsilodus lineage or a development of peculiar oblique striation in elements of the symmetry transition series of Paltodus, making them identical with respective elements of Dapsilodus.

Autekologia

Występowanie geograficzne

Mójcza, Holy Cross Mts.

Zasięg czasowy

Rare in the Mójcza Limestone from 0.4 above up to 1.4 m above the discontinuity E. robustus - E. lindstroemi Subzones) and in coeval strata of the Baltic region .

Materiały muzealne

ZPAL

Literatura

Dzik, J. 1994a Conodonts of the Mójcza Limestone. In: J. Dzik, E. Olempska, & A. Pisera. Ordovician carbonate platform of the Holy Cross Mountains. Palaeontologia Polonica 53, 43-128. 

Zhang, J. 1998. Conodonts from the Guniutan Formation (Llanvirnian) in Hubei and Hunan Provinces, south-central China. Stockholm Contributions in Geology 46, 1-161.

Specyfikacja

Królestwo
ANIMALIA 

Typ
CHORDATA 

Podtyp
CONODONTA

Gromada
CONODONTOPHORIDA

Podgromada
EUCONODONTA

Rząd
Protopanderodontida

Rodzina
Distacodontidae

Rodzaj
Oslodus

Gatunek
Oslodus semisymmetricus

Synonimy
Acontiodus semisymmetricus Hamar, 1966; Paltodushelp semisymmetricus (Hamar); Dzik, 1976, 1994

Populacja typowa gatunku

Holotyp

Locus typicus

Nakholmen,Oslo district, Norway.

Stratum typicum

Sample 157 from the top of the Upper Chasmops Limestone (Late Caradoc). 


Tags:
Created by Jerzy Dzik on 2018/04/20 14:54

Klasyfikacja


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