Early-Middle Jurassic lytoceratid ammonites with constrictions from Morocco: palaeobiogeographical and evolutionary implications

R. Bourillot, P. Neige, A. Pierre, and C. Durlet

2008

Article

Palaeontology 51:597-609

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Taxa discussed in this work:

• Alocolytoceras coarctatum
• Alocolytoceras dorcadis
• Alocolytoceras ophioneum
• Alocolytoceras ophioneus
• Alocolytoceratinae
• Ammonites (Lytoceras) catriensis
• Lytoceras angustum
• Lytoceras rude

Taxonomy:

• Alocolytoceras dorcadis belongs to Alocolytoceras - Bourillot et al. (2008)
• Alocolytoceras ophioneum belongs to Alocolytoceras - Bourillot et al. (2008)
• Ammonites (Lytoceras) catriensis belongs to Alocolytoceras ophioneum - Bourillot et al. (2008)
• Alocolytoceras coarctatum belongs to Alocolytoceras - Bourillot et al. (2008)
• Lytoceras rude belongs to Alocolytoceras coarctatum - Bourillot et al. (2008)
• Lytoceras angustum belongs to Alocolytoceras coarctatum - Bourillot et al. (2008)