The taphonomic puzzle of Notothylacites filiformis: reinterpretation of bryophyte fossils from the Late Cretaceous of Czechia reveals the co-occurrence of hornworts and liverworts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F25%3A10136891" target="_blank" >RIV/00023272:_____/25:10136891 - isvavai.cz</a>

Výsledek na webu

<a href="https://academic.oup.com/aob/advance-article/doi/10.1093/aob/mcaf219/8250326" target="_blank" >https://academic.oup.com/aob/advance-article/doi/10.1093/aob/mcaf219/8250326</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcaf219" target="_blank" >10.1093/aob/mcaf219</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The taphonomic puzzle of Notothylacites filiformis: reinterpretation of bryophyte fossils from the Late Cretaceous of Czechia reveals the co-occurrence of hornworts and liverworts

Popis výsledku v původním jazyce

We reinterpret the original Notothylacites filiformis holotype as a conglomerate of two fossils: a hornwort, Notothylacites, and a liverwort, which we designate as a new species Ricciopsis pacltovae sp. nov. Notothylacites filiformis was lectotypified, using material from seven slides and the original drawing, which emphasized a key character - a sporangium with apical longitudinal dehiscence slit containing psilate, trilete spores. Ricciopsis pacltovae, erected based on comparisons with seven described species, is a liverwort that closely resembles extant Riccia, with a prostrate circular thallus consisting of dichotomously branched, linear segments, and up to six dichotomies per branch, each branch with a pronounced narrow medial sulcus. These and other morphological traits distinguish it from previously described species in the genus.Conclusions Notothylacites filiformis is reinterpreted as one of the rare examples of a fossil hornwort sporophyte. Gametophyte material previously assigned to Notothylacites filiformis is assigned to a new fossil liverwort species, Ricciopsis pacltovae. Hornworts frequently grow on wet soil together with Riccia liverworts. The co-occurrence of the two fossil species further highlights the presence of bryophyte diversity in the Late Cretaceous that mirrors extant ecological associations. This study corrects decades of taxonomic confusion, demonstrating how taphonomic mixing can mislead interpretations, and emphasizes the importance of re-examining collections with modern methods.

Název v anglickém jazyce

The taphonomic puzzle of Notothylacites filiformis: reinterpretation of bryophyte fossils from the Late Cretaceous of Czechia reveals the co-occurrence of hornworts and liverworts

Popis výsledku anglicky

We reinterpret the original Notothylacites filiformis holotype as a conglomerate of two fossils: a hornwort, Notothylacites, and a liverwort, which we designate as a new species Ricciopsis pacltovae sp. nov. Notothylacites filiformis was lectotypified, using material from seven slides and the original drawing, which emphasized a key character - a sporangium with apical longitudinal dehiscence slit containing psilate, trilete spores. Ricciopsis pacltovae, erected based on comparisons with seven described species, is a liverwort that closely resembles extant Riccia, with a prostrate circular thallus consisting of dichotomously branched, linear segments, and up to six dichotomies per branch, each branch with a pronounced narrow medial sulcus. These and other morphological traits distinguish it from previously described species in the genus.Conclusions Notothylacites filiformis is reinterpreted as one of the rare examples of a fossil hornwort sporophyte. Gametophyte material previously assigned to Notothylacites filiformis is assigned to a new fossil liverwort species, Ricciopsis pacltovae. Hornworts frequently grow on wet soil together with Riccia liverworts. The co-occurrence of the two fossil species further highlights the presence of bryophyte diversity in the Late Cretaceous that mirrors extant ecological associations. This study corrects decades of taxonomic confusion, demonstrating how taphonomic mixing can mislead interpretations, and emphasizes the importance of re-examining collections with modern methods.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

<a href="/cs/project/GF23-05142K" target="_blank" >GF23-05142K: Pozdně křídová flóra z jižních Čech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Annals of Botany

ISSN

0305-7364

e-ISSN

—

Svazek periodika

137

Číslo periodika v rámci svazku

září 2025

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001588158200001

EID výsledku v databázi Scopus

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