Article (Scientific journals)
The Growth of the Skull Roof Plates in Arabosteus variabilis (Acanthothoraci, Placodermi) from the Early Devonian Jauf Formation (Saudi Arabia): Preliminary Results
Olive, Sébastien; Goujet, Daniel; Lelièvre, Hervé et al.
2014In Paleontological Journal, 48 (9), p. 992-1002
Peer reviewed
 

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Keywords :
Placodermi; Acanthothoraci; Growth
Abstract :
[en] The skull roof growth of Arabosteus variabilis (Acanthothoraci), from the Pragian-Early Emsian of Saudi Arabia is studied on the basis of well preserved growth lines on the dermal plates. A clear tendency towards growth in length, i.e. allometry in length, can be observed for all studied skull roof plates of Arabosteus variabilis as well as for the skull roof in general. Each studied plate displays particular growth shaping the skull roof according to its position in the skull roof pattern, e.g., the preorbital plate controls the shape of the part of the orbit and the nuchal plate retains the relative proportions in the skull roof during growth.
Disciplines :
Earth sciences & physical geography
Zoology
Author, co-author :
Olive, Sébastien ;  Université de Liège - ULiège > Form. doct. sc. (géologie - Bologne)
Goujet, Daniel;  Muséum National d'Histoire Naturelle (Paris, France)
Lelièvre, Hervé;  Muséum National d'Histoire Naturelle (Paris, France)
Janvier, Philippe;  Muséum National d'Histoire Naturelle (Paris, France)
Language :
English
Title :
The Growth of the Skull Roof Plates in Arabosteus variabilis (Acanthothoraci, Placodermi) from the Early Devonian Jauf Formation (Saudi Arabia): Preliminary Results
Publication date :
December 2014
Journal title :
Paleontological Journal
ISSN :
0031-0301
Publisher :
Maik Mauka - Interperiodica
Volume :
48
Issue :
9
Pages :
992-1002
Peer reviewed :
Peer reviewed
Available on ORBi :
since 09 December 2014

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