INVESTIGADORES
EZCURRA Martin Daniel
artículos
Título:
Doswelliidae: a clade of unusual armoured archosauriforms from the Middle and Late Triassic
Autor/es:
SUES, H.-D.; DESOJO, J. B.; EZCURRA, M. D.
Revista:
GEOLOGICAL SOCIETY OF LONDON SPECIAL PUBLICATION
Editorial:
Geological Society
Referencias:
Lugar: Londres; Año: 2013 vol. 379
ISSN:
0305-8719
Resumen:
Doswelliidae is a clade of armoured non-archosaurian archosauriform reptiles moreclosely related to Archosauria than are Proterosuchidae, Erythrosuchidae and possibly Euparkeriacapensis. It is currently known from the late Middle Triassic (Ladinian) of Germany, the lateMiddle to early Late Triassic (Ladinian?Carnian) of Argentina and Brazil, and the Late Triassic(Carnian?Norian) of the USA. To date, two unambiguous synapomorphies diagnose Doswelliidae:(i) osteoderm ornamentation coarse, incised, and composed of central regular pits of subequal sizeand shape, and (ii) osteoderms with anterior articular lamina. Five taxa are currently recognized:Archeopelta arborensis, Doswellia kaltenbachi, Doswellia sixmilensis, Tarjadia ruthae and anew taxon from Germany. Based on skeletal features and occurrence, doswelliid archosauriformsmay have had a semi-aquatic mode of life.