000128009 001__ 128009
000128009 005__ 20240319081027.0
000128009 0247_ $$2doi$$a10.1080/08912963.2022.2054712
000128009 0248_ $$2sideral$$a128855
000128009 037__ $$aART-2022-128855
000128009 041__ $$aeng
000128009 100__ $$aGuillaume, Alexandre R. D.
000128009 245__ $$aPlasticity in the morphology of the fused frontals of Albanerpetontidae (Lissamphibia; Allocaudata)
000128009 260__ $$c2022
000128009 5060_ $$aAccess copy available to the general public$$fUnrestricted
000128009 5203_ $$aAlbanerpetontidae form an enigmatic extinct group of lissamphibians, ranging from the early Bathonian to the early Pleistocene. The Upper Jurassic outcrops of Portugal yield a large collection of material, suitable for addressing the intraspecific variation in and diagnostic potential of the characteristic fused frontals. We revise 58 specimens from the Guimarota beds of the Kimmeridgian Alcobaca Formation and describe 62 new frontal bones from the Kimmeridgian - Tithonian Lourinha Formation. Smaller specimens exhibit a vermicular dorsal ornamentation, while it is polygonal in larger specimens and other albanerpetontids. Compared to small specimens, larger specimens display: (1) larger ventrolateral crests extending posteriorly after the parietal margin; (2) a relatively shorter internasal process; (3) a frontal width across posterior edges relatively smaller; and (4) a ventromedian crest less pronounced. Morphometric analyses suggest a single species with different ontogenetic stages. Specimens are attributed to aff. Celtedens sp., based on a bell-shaped outline with a curved orbital margin (although variable in Portuguese specimens), and a flabellate, bulbous-shaped internasal process. The species is more similar to C. megacephalus than C. ibericus, but its phylogenetic position comprises an unresolved trichotomy. Our results show that intraspecific variation and homoplasy render the fused frontal non-diagnostic below the generic level.
000128009 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000128009 590__ $$a1.4$$b2022
000128009 591__ $$aPALEONTOLOGY$$b30 / 54 = 0.556$$c2022$$dQ3$$eT2
000128009 592__ $$a0.551$$b2022
000128009 593__ $$aAgricultural and Biological Sciences (miscellaneous)$$c2022$$dQ1
000128009 594__ $$a3.5$$b2022
000128009 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000128009 700__ $$aNatario, Carlos
000128009 700__ $$aMateus, Octavio
000128009 700__ $$0(orcid)0000-0002-7210-1033$$aMoreno-Azanza, Miguel$$uUniversidad de Zaragoza
000128009 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000128009 773__ $$g35, 4 (2022), 537-554$$pHist. Biol$$tHistorical Biology$$x0891-2963
000128009 8564_ $$s5006986$$uhttps://zaguan.unizar.es/record/128009/files/texto_completo.pdf$$yPostprint
000128009 8564_ $$s960687$$uhttps://zaguan.unizar.es/record/128009/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000128009 909CO $$ooai:zaguan.unizar.es:128009$$particulos$$pdriver
000128009 951__ $$a2024-03-18-16:48:52
000128009 980__ $$aARTICLE