Original paper
Sexual dimorphism in Hecticoceras giganteum SPATH (Ammonoidea) from the Callovian (Middle Jurassic) of Kutch, India
Roy, Pinaki; Bardhan, Subhendu
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 245 Heft 3 (2007), p. 263 - 272
published: Oct 16, 2007
DOI: 10.1127/0077-7749/2007/0245-0263
ArtNo. ESP155024503001, Price: 29.00 €
Abstract
The subfamily Hecticoceratinae SPATH, 1925, belonging to the family Oppelidae, is an important faunal element during the Bathonian - Oxfordian. The present paper addresses sexual dimorphism in one of the species of the type genus, i.e. Hecticoceras giganteum SPATH, from Kutch, western India. Dimorphism within this species is marked by size and ornamental disparity, the microconch being much smaller, less ornamented and lappeted.