Healed injury in a nektobenthic trilobite: „Octopus-like“ predatory style in Middle Ordovician?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F22%3A00559205" target="_blank" >RIV/67985831:_____/22:00559205 - isvavai.cz</a>
Alternative codes found
RIV/00025798:_____/22:00000146 RIV/00216208:11310/22:10456254
Result on the web
<a href="http://www.geologia-croatica.hr/index.php/GC/article/view/1047" target="_blank" >http://www.geologia-croatica.hr/index.php/GC/article/view/1047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4154/gc.2022.17" target="_blank" >10.4154/gc.2022.17</a>

Result language
angličtina
Original language name
Healed injury in a nektobenthic trilobite: „Octopus-like“ predatory style in Middle Ordovician?
Original language description
The Lower Paleozoic sediments of the Barrandian area are globally renowned as a classical example of well-preserved skeletal marine fauna, including abundant remains of trilobites. Several tens of morphologically anomalous exoskeletons of trilobites have been collected and documented from Cambrian to Devonian clastic sediments and carbonates. One of them, an exceptionally well preserved, articulated and partly enrolled exoskeleton of the Ordovician nektobenthic trilobite Parabarrandia bohemica (NOVAK, 1884) exhibits a prominent palaeopathological anomaly in its pygidium. We interpret this anomaly as a healed traumatic injury and attribute this damage to a failed predatory attack. The subsequently healed injury is classified as the ichnogenus Oichnus BROMLEY, 1981. The structure on the pygidium is strongly reminiscent of injuries caused by octopods and a large cephalopod is proposed as a potential durophagous predator responsible for the herein described trilobite injury. However, an attack from an unknown arthropod while the trilobite was in a soft-shelled stage cannot be excluded.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - 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/GA18-14575S" target="_blank" >GA18-14575S: Fossil assemblages of Libeň and Letná formations (Upper Ordovician) - keys to the understanding of Fezouata and Tafilalt biotas of Morocco</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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