The oldest known heterobranch gastropod, Kuskokwimia gen. nov., from the Early Devonian of west-central Alaska, with notes on the early phylogeny of higher gastropods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F03%3A00000019" target="_blank" >RIV/00025798:_____/03:00000019 - isvavai.cz</a>
Alternative codes found
RIV/00025798:_____/01:00000429
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The oldest known heterobranch gastropod, Kuskokwimia gen. nov., from the Early Devonian of west-central Alaska, with notes on the early phylogeny of higher gastropods
Original language description
A new gastropod, Kuskokwimia moorei gen. et sp. nov., with a dextral teleoconch and small, sinistrally coiled protoconch is described from Emsian (late Early Devonian) strata of the Medfra B-4 quadrangle, west-central Alaska. The genus Kuskokwimia is placed in a new family, the Kuskokwimiidae fam. nov., considered to be the oldest and first undoubted Middle Paleozoic representative of the subclass Heterobranchia. It is suggested that the Heterobranchia have been separated from other gastropod groups atleast since the Early Devonian, or perhaps even earlier. Shell heterostrophy (anastrophic as well as inclined heterostrophic coiling) can no longer be considered a unique character of the subclass Heterobranchia, because it is also well documented now inthe slit-bearing Archaeogastropoda. The origin of shell heterostrophy seems to be connected with a reorganization of the pallial organs during early shell ontogeny
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA205%2F01%2F0143" target="_blank" >GA205/01/0143: Evolution, systematics and paleobiogeographic relationship of devonian gastropods from the Prague basin (Bohemia) and the Farewell terrane (Alaska)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Bulletin of the Czech Geological Survey
ISSN
1210-3527
e-ISSN
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Volume of the periodical
76
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
15
Pages from-to
39-53
UT code for WoS article
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EID of the result in the Scopus database
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