Metadata changes

Title

AstandSpes conspicuues Template

Document author

XWiki.AdmPinotrGryz

Object changes

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pHtmlTitle

<i>Astandes conspicuus</i> (Eichwald, 1868)

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subtitle

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1		-Specimen MZ VIII Mg 4227/4 from the Callovian (Mid Jurassic) of Łuków (block in glacial drift) in lateral and apical view.\\

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Autekologia

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Diagnoza

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1		-Protoconch 2 conical, ornamented with two ribbon-like spiral keels. Shell conical with incised suture. Teleoconch ornamented with strong prosocline axial ribs (12–15 on the first whorl of teleoconch) and weaker spiral ribs (about six on the second whorl of teleoconch). Peristome with short anterior and weak posterior channels. Inner lip with or without a narrow callus.

Literatura

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1		-Eichwald, E. 1868. Second section de la période moyenne. //Lethaea Rossica ou paléontologie de la Russie// 2, 641–1034.
2		-
3		-Gründel, J. 1998a. Archaeo− und Caenogastropoda aus dem Dogger Deutschlands und Nordpolens. //Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie)// 260, 1–39.
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Materiały muzealne

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1		-Material from Russia and over 100 shells from Łuków, Poland.

Holotyp

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1		-Eichwald,1868:956, pl.31:10

Locus typicus

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1		-Goliowo (near Moscow), Russia.

Stratum typicum

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1		-Oxfordian, Jurassic.

Porównanie

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1		-This species is higly variable, both in number of axial ribs, and in their strength. //Maturifusus montagi// Gründel, 1998 does not exceed the variability among the //Astandes conspicuus// from Łuków. //Astandes ticurelatus// (Gründel, 2001) is also very similar in shell morphology and differs only in the presence of rich pustulose ornamentation on the early part of the protoconch. //Astandes kostromensis// (Gerasimov,1955) differs significantly from //A. conspicuus// in having more numerous and weaker spiral ribs. The species //Astandes densatus //Wade, 1917, //Astandes densicostatus //(Szabó, 1983), //Astandes piccuus// Beisel, 1983, and //Astandes szaboi// (Schröder,1995) with weaker axial ribs than //A. conspicuus//. //Astandes keyserlingianus// (Rouillier,1846) from Central Russia differs in having both spiral and axial ribs of the same dimension.\\

Występowanie geograficzne

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1		-Russia and Poland; in Poland found only in Łuków (block in glacial drift).

Zasięg czasowy

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1		-Callovian–Oxfordian (Mid to Late Jurassic); in Poland only Callovian.

Autor opisu gatunku

(Eichwald, 1868)

Autor wpisu Ikonoteki

Gryz, P.

Rok wpisu Ikonoteki

2020

Synonimy

Murex conspicuus Eichwald, 1868; Maturifusus montagi Gründel,1998a