The Early Cretaceous frog Genibatrachus from China: Osteology, development, and palaeogeographic relations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F23%3A00571323" target="_blank" >RIV/67985831:_____/23:00571323 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s12549-023-00579-x" target="_blank" >https://link.springer.com/article/10.1007/s12549-023-00579-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12549-023-00579-x" target="_blank" >10.1007/s12549-023-00579-x</a>
Alternative languages
Result language
angličtina
Original language name
The Early Cretaceous frog Genibatrachus from China: Osteology, development, and palaeogeographic relations
Original language description
A thorough anatomical description of the Early Cretaceous frog Genibatrachus is presented, based on 84 fully grown adults and 75 metamorphosing larvae and juveniles. The most distinguishing cranial characters of the adults are premaxillae with a bifurcated facial portion, a pair of frontoparietals contacting one another through a median suture posteriorly but separated by a median fontanelle anteriorly, and free palatines. The postcranial skeleton is characterised by eight amphicoelous presacral vertebrae and an anteriorly convex sacral vertebra, by three pairs of free ribs on V2–V4 (those on V2 small and hook-like, and those on V3 provided with spike-like uncinate processes), by poorly ossified caput humeri even in fully grown adults, praepollex consisting of two segments (the distal one being strongly expanded), and by the tibiale and fibulare fused together at both ends. The development of Genibatrachus is characterised by the same degree of ossification in the forelimbs and hind limbs, no apparent developmental gradient within the vertebral column, and a pelvic girdle arising within the sacral region of the vertebral column, not behind it. The posteromedial processes of the hyoid ossify early, before the end of metamorphosis (when the vestigial tail is still present). The end of metamorphosis is marked by the establishment of a sutural contact between the ilia. The parahyoid is poorly ossified, relatively common among juveniles (from SVL 24 mm), but not reliably discerned in fully grown adults. Genibatrachus seems to be related to coeval Hyogobatrachus and Tambabatrachus from Japan, and to extant Alytoidea, but differs from Liaobatrachus (e.g. by the number of presacral vertebrae). Some skeletal characteristics (e.g. bicondylar sacro-urostylar joint) suggest that Genibatrachus was capable of jumping.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10506 - Paleontology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Palaeobiodiversity and Palaeoenvironments
ISSN
1867-1594
e-ISSN
1867-1608
Volume of the periodical
103
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
27
Pages from-to
799-825
UT code for WoS article
000977802700001
EID of the result in the Scopus database
2-s2.0-85153703685