Chulitnacula, a new paleobiogeographically distinctive gastropod genus from Upper Triassic strata of accreted terranes of southern Alaska

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F03%3A00000022" target="_blank" >RIV/00025798:_____/03:00000022 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/01:00000427

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Chulitnacula, a new paleobiogeographically distinctive gastropod genus from Upper Triassic strata of accreted terranes of southern Alaska

Popis výsledku v původním jazyce

A new protorculid gastropod genus, Chulitnacula, is established from the Chulitna terrane of south-central Alaska. The occurrence of Chulitnacula alaskana (Smith, 1927) in the Chulitna, Farewell (Nixon Fork subterrane) and Alexander terranes suggests that they were in close reproductive communication in the Late Triassic. The absence of this taxon in either the Wrangellia terrane of southern Alaska and British Columbia, as well as in the related Wallowa terrane of northeastern Oregon and adjacent western Idaho is worthy of note. This absence plus many other major differences in their respective Late Triassic gastropod faunas indicate that the Chulitna-Farewell-Alexander terrane association was far removed from the Wrangellia-Wallowa terrane couplet. While both faunal associations are characteristically tropical in aspect, their biogeographically differing faunas indicate that they were probably very distantly separated from one another in the Panthalassa Ocean at this time.

Název v anglickém jazyce

Chulitnacula, a new paleobiogeographically distinctive gastropod genus from Upper Triassic strata of accreted terranes of southern Alaska

Popis výsledku anglicky

A new protorculid gastropod genus, Chulitnacula, is established from the Chulitna terrane of south-central Alaska. The occurrence of Chulitnacula alaskana (Smith, 1927) in the Chulitna, Farewell (Nixon Fork subterrane) and Alexander terranes suggests that they were in close reproductive communication in the Late Triassic. The absence of this taxon in either the Wrangellia terrane of southern Alaska and British Columbia, as well as in the related Wallowa terrane of northeastern Oregon and adjacent western Idaho is worthy of note. This absence plus many other major differences in their respective Late Triassic gastropod faunas indicate that the Chulitna-Farewell-Alexander terrane association was far removed from the Wrangellia-Wallowa terrane couplet. While both faunal associations are characteristically tropical in aspect, their biogeographically differing faunas indicate that they were probably very distantly separated from one another in the Panthalassa Ocean at this time.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F01%2F0143" target="_blank" >GA205/01/0143: Evoluce, systematika a paleobiogegrafické vztahy devonských gastropodů pražské pánve (Čechy) a Farewell terrane (Aljaška)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the Czech Geological Society

ISSN

1210-8197

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

04/03/04

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

299-306

Kód UT WoS článku

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EID výsledku v databázi Scopus

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