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

Result code in 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>

Alternative codes found

RIV/00216208:11310/23:10476091

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10506 - Paleontology

Project

<a href="/en/project/GJ20-23550Y" target="_blank" >GJ20-23550Y: Exploring developmental aspects in fossil arthropods during Cambrian explosion and Ordovician biodiversification</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Geobios

ISSN

0016-6995

e-ISSN

1777-5728

Volume of the periodical

81

Issue of the periodical within the volume

December 2023

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

20

Pages from-to

31-50

UT code for WoS article

001145980800001

EID of the result in the Scopus database

2-s2.0-85171273294