New information on the Eocene frog Thaumastosaurus (Anura, Pyxicephalidae) from the Phosphorites du Quercy, France

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F23%3A00573591" target="_blank" >RIV/67985831:_____/23:00573591 - isvavai.cz</a>

Výsledek na webu

<a href="https://academic.oup.com/zoolinnean/advance-article/doi/10.1093/zoolinnean/zlad047/7222864?searchresult=1" target="_blank" >https://academic.oup.com/zoolinnean/advance-article/doi/10.1093/zoolinnean/zlad047/7222864?searchresult=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/zoolinnean/zlad047" target="_blank" >10.1093/zoolinnean/zlad047</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New information on the Eocene frog Thaumastosaurus (Anura, Pyxicephalidae) from the Phosphorites du Quercy, France

Popis výsledku v původním jazyce

We present new disarticulated cranial elements of the Eocene frog Thaumastosaurus from several localities in the Phosphorites du Quercy, France, providing novel information about the variation of its anatomical characteristics. With the use of micro-computed tomography (μCT) scanning technology, we examine and discuss various types of dermal cranial ornamentation in extant Pyxicephalus, the closest extant relative of Thaumastosaurus, in which these features are useful in species diagnoses, paying particular attention to the individual and ontogenetic variation, and sexual dimorphism, as well as interspecific variation among extant species. We suggest that various types of dermal cranial ornamentation in Thaumastosaurus could be potentially used in diagnoses at species level, although ontogenetic variation should be taken into consideration. Apart from ornamentation, the size and general morphology of the maxillae and squamosa in Thaumastosaurus reveal an unexpected disparity of morphotypes, which suggests the potential presence of cryptic taxa. Some squamosa reveal that their processus zygomaticus extended up to the postnasal wall, so their associated maxillae were excluded from the orbital margin, whereas others were short and their respective maxillae participated in the formation of the orbital margin. Thaumastosaurus is envisaged as the product of an Early Palaeogene direct, potentially overseas, dispersal from isolated Afro-Arabia to Europe.

Název v anglickém jazyce

New information on the Eocene frog Thaumastosaurus (Anura, Pyxicephalidae) from the Phosphorites du Quercy, France

Popis výsledku anglicky

We present new disarticulated cranial elements of the Eocene frog Thaumastosaurus from several localities in the Phosphorites du Quercy, France, providing novel information about the variation of its anatomical characteristics. With the use of micro-computed tomography (μCT) scanning technology, we examine and discuss various types of dermal cranial ornamentation in extant Pyxicephalus, the closest extant relative of Thaumastosaurus, in which these features are useful in species diagnoses, paying particular attention to the individual and ontogenetic variation, and sexual dimorphism, as well as interspecific variation among extant species. We suggest that various types of dermal cranial ornamentation in Thaumastosaurus could be potentially used in diagnoses at species level, although ontogenetic variation should be taken into consideration. Apart from ornamentation, the size and general morphology of the maxillae and squamosa in Thaumastosaurus reveal an unexpected disparity of morphotypes, which suggests the potential presence of cryptic taxa. Some squamosa reveal that their processus zygomaticus extended up to the postnasal wall, so their associated maxillae were excluded from the orbital margin, whereas others were short and their respective maxillae participated in the formation of the orbital margin. Thaumastosaurus is envisaged as the product of an Early Palaeogene direct, potentially overseas, dispersal from isolated Afro-Arabia to Europe.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

—

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

Zoological Journal of the Linnean Society

ISSN

0024-4082

e-ISSN

1096-3642

Svazek periodika

199

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

27

Strana od-do

744-770

Kód UT WoS článku

001027252500001

EID výsledku v databázi Scopus

2-s2.0-85177493973