INVESTIGADORES
FERNANDEZ Marta Susana
artículos
Título:
DORSAL OR VENTRAL? HOMOLOGIES OF THE FOREFIN OF CAYPULLISAURUS
Autor/es:
FERNANDEZ, M.
Revista:
JOURNAL OF VERTEBRATE PALEONTOLOGY
Referencias:
Año: 2001 vol. 21 p. 515 - 520
ISSN:
0272-4634
Resumen:
ABSTRACTThe original description of Caypullisaurus (Ichthyosauria: Ophthalmosauria) depended on the orientation
of the fins of the holotype. Later, the forefins of this taxon were reoriented contrary to the original description. The
arrival of the holotype carcass at the sea floor is analyzed taphonomically such that the original interpretation is
confirmed. The analysis of the homologies of the forefin elements also confirms that the topological criteria developed
for the identification of the primary axis of all Ichthyosauria are also applicable for Caypullisaurus. A comparison with
the forefins of other Callovian and Late Jurassic ichthyosaurs shows that Caypullisaurus belongs to the Ophthalmosauria
and that the forefins of this clade are more diverse than previously supposed.Caypullisaurus (Ichthyosauria: Ophthalmosauria) depended on the orientation
of the fins of the holotype. Later, the forefins of this taxon were reoriented contrary to the original description. The
arrival of the holotype carcass at the sea floor is analyzed taphonomically such that the original interpretation is
confirmed. The analysis of the homologies of the forefin elements also confirms that the topological criteria developed
for the identification of the primary axis of all Ichthyosauria are also applicable for Caypullisaurus. A comparison with
the forefins of other Callovian and Late Jurassic ichthyosaurs shows that Caypullisaurus belongs to the Ophthalmosauria
and that the forefins of this clade are more diverse than previously supposed.Caypullisaurus. A comparison with
the forefins of other Callovian and Late Jurassic ichthyosaurs shows that Caypullisaurus belongs to the Ophthalmosauria
and that the forefins of this clade are more diverse than previously supposed.Caypullisaurus belongs to the Ophthalmosauria
and that the forefins of this clade are more diverse than previously supposed.
