RT Book, Section
T1 Aalenian Tmetoceras (Ammonoidea) from Iberia: taxonomy, habitats and evolution.
A1 Fernández López, Sixto Rafael
A1 Henriques, María Helena Paiva
A1 Linares Rodríguez, Asunción
A1 Sandoval Gabarrón, José
A1 Ureta Gil, María Soledad
A2 Olóriz Aguilera, Federico
A2 Rodríguez Tovar, Francisco J.
AB Several hundred Aalenian Tmetoceras from the Iberian Peninsula (N Lusitanian Basin, Asturias,Basque-Cantabrian Basin, NE Cameros, NW Iberian Basin, Aragonese Platform,Tortosa Platform, Castilian Platform, Majorca and Betic Basin) have been reviewed. Twospecies of Aalenian Tmetoceras have been identified on the basis of morphological, biochronologicaland palaeobiogeographical data: T. scissum and T. regleyi.T. scissum was dominant among the Tmetoceras populations developed in the Beticand Lusitanian basins during Opalinum, Murchisonae and Bradfordensis biochrons. Populationscomposed by evolute individuals of T. scissum inhabited shelfal or oceanic environments.A chronocline, from rectiradiate and primitive forms to flexicostate and derivedforms, can be recognized in these populations of T. scissum. In contrast, shallow epicontinentalplatforms were inhabited by involute individuals of T. regleyi. This second specieswas phyletically derived from T. scissum, representing an adaptive radiation from populationsof shelfal or oceanic basins to populations of epicontinental platforms.
PB Kluwer
SN 978-1-4613-7193-9
YR 1999
FD 1999
LK https://hdl.handle.net/20.500.14352/60716
UL https://hdl.handle.net/20.500.14352/60716
LA eng
DS Docta Complutense
RD 30 abr 2024