Babies from the Fezouata Biota: Early developmental trilobite stages and their adaptation to high latitudes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F23%3A00575539" target="_blank" >RIV/67985831:_____/23:00575539 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/23:10476091

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0016699523000700#aep-article-footnote-id1" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016699523000700#aep-article-footnote-id1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geobios.2023.06.005" target="_blank" >10.1016/j.geobios.2023.06.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Babies from the Fezouata Biota: Early developmental trilobite stages and their adaptation to high latitudes

Popis výsledku v původním jazyce

The Lower Ordovician Fezouata Shale is renowned for its exceptionally-preserved euarthropod fossils including numerous species of trilobites, some of which show remains of appendages and traces of the digestive system. Herein, we describe the early developmental stages of at least nine trilobite species from the Tremadocian strata of the Fezouata Shale, namely Platypeltoides magrebiensis, Nileus deynouxi, Symphysurus ebbestadi, Asaphellus sp., Megistaspis (Ekeraspis) hammondi, Orometopus sp., Anacheirurus adserai, Bavarilla zemmourensis, Indiligens sp., and several specimens of undetermined protaspides. This study considerably expands our knowledge of the development of early Ordovician trilobites. The preservation of appendages in the early stages of N. deynouxi and S. ebbestadi, and remains of the digestive tract in the latter species, suggests that some immature trilobites had similar morphology and anatomy as the adult individuals. Early developmental stages of Indiligens sp. might have fed and/or hidden on graptolites and demosponges. The extraordinarily large size of the early post-embryonic stages of P. magrebiensis, S. ebbestadi, Orometopus sp., Asaphellus sp., and undetermined protaspides suggests that these trilobites might have hatched from yolk-rich eggs. The presence of several trilobite species with notably large post-embryonic stages in the Fezouata Shale might be explained by seasonal or low productivity in the high-latitude margin of Gondwana.

Název v anglickém jazyce

Babies from the Fezouata Biota: Early developmental trilobite stages and their adaptation to high latitudes

Popis výsledku anglicky

The Lower Ordovician Fezouata Shale is renowned for its exceptionally-preserved euarthropod fossils including numerous species of trilobites, some of which show remains of appendages and traces of the digestive system. Herein, we describe the early developmental stages of at least nine trilobite species from the Tremadocian strata of the Fezouata Shale, namely Platypeltoides magrebiensis, Nileus deynouxi, Symphysurus ebbestadi, Asaphellus sp., Megistaspis (Ekeraspis) hammondi, Orometopus sp., Anacheirurus adserai, Bavarilla zemmourensis, Indiligens sp., and several specimens of undetermined protaspides. This study considerably expands our knowledge of the development of early Ordovician trilobites. The preservation of appendages in the early stages of N. deynouxi and S. ebbestadi, and remains of the digestive tract in the latter species, suggests that some immature trilobites had similar morphology and anatomy as the adult individuals. Early developmental stages of Indiligens sp. might have fed and/or hidden on graptolites and demosponges. The extraordinarily large size of the early post-embryonic stages of P. magrebiensis, S. ebbestadi, Orometopus sp., Asaphellus sp., and undetermined protaspides suggests that these trilobites might have hatched from yolk-rich eggs. The presence of several trilobite species with notably large post-embryonic stages in the Fezouata Shale might be explained by seasonal or low productivity in the high-latitude margin of Gondwana.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

<a href="/cs/project/GJ20-23550Y" target="_blank" >GJ20-23550Y: Výzkum vývojových aspektů u fosilních členovců v průběhu kambrické exploze a ordovické biodiverzifikace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Geobios

ISSN

0016-6995

e-ISSN

1777-5728

Svazek periodika

81

Číslo periodika v rámci svazku

December 2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

31-50

Kód UT WoS článku

001145980800001

EID výsledku v databázi Scopus

2-s2.0-85171273294