Architektura exoskeletonu, morfologie hypostomu a způsob života silurských a spodnodevonských dalmanitidních trilobitů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F08%3A00000009" target="_blank" >RIV/00025798:_____/08:00000009 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Exoskeletal architecture, hypostomal morphology and mode of life of Silurian and Lower Devonian dalmanitid trilobites

Popis výsledku v původním jazyce

The exoskeletal architecture and hypostomal morphology of Silurian Dalmanites and Lower Devonian Odontochile, Reussiana and Zlichovaspis are discussed. A gradual shift from predator-scavenger to a scavenging feeding habit is inferred from the evolution of these dalmanitids in the Upper Silurian and Lower Devonian. In the more conservative, probable predator-scavenger Dalmanites, the posterior hypostomal doublure has a group of robust denticles: these would have been effective shredding structures,allowing Dalmanites to deal with mechanically robust prey. Lower Devonian dalmanitids possess a comparable structure. However, the denticles are finer and denser. The scavenging with opportunistic predation is considered to be their main feeding habit. The shift from a more predatory to a dominantly scavenging mode of life may have occurred independently in several unrelated dalmanitid groups, with ?odontochilid? characteristics developing at different stratigraphical levels.

Název v anglickém jazyce

Exoskeletal architecture, hypostomal morphology and mode of life of Silurian and Lower Devonian dalmanitid trilobites

Popis výsledku anglicky

The exoskeletal architecture and hypostomal morphology of Silurian Dalmanites and Lower Devonian Odontochile, Reussiana and Zlichovaspis are discussed. A gradual shift from predator-scavenger to a scavenging feeding habit is inferred from the evolution of these dalmanitids in the Upper Silurian and Lower Devonian. In the more conservative, probable predator-scavenger Dalmanites, the posterior hypostomal doublure has a group of robust denticles: these would have been effective shredding structures,allowing Dalmanites to deal with mechanically robust prey. Lower Devonian dalmanitids possess a comparable structure. However, the denticles are finer and denser. The scavenging with opportunistic predation is considered to be their main feeding habit. The shift from a more predatory to a dominantly scavenging mode of life may have occurred independently in several unrelated dalmanitid groups, with ?odontochilid? characteristics developing at different stratigraphical levels.

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/GP205%2F04%2FP026" target="_blank" >GP205/04/P026: Revize spodnodevonských dalmanitidních ("odontochilidních") trilobitů pražské pánve</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Bulletin of Geosciences

ISSN

1214-1119

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

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EID výsledku v databázi Scopus

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