Early Jurassic anoxia triggered the evolution of the oldest holoplanktonic gastropod Coelodiscus minutus by means of heterochrony

S. Teichert, and A. Nutzel

2015

Article

Acta Palaeontologica Polonica 60(2):269-276

Find it at:

http://dx.doi.org/10.4202/app.00145.2014

Taxa discussed in this work:

• Pterotrachea ceratophagus
• Pterotrachea liassica

Taxonomy:

• Pterotrachea ceratophagus belongs to Pterotrachea - Teichert and Nutzel (2015)
• Pterotrachea liassica belongs to Pterotrachea ceratophagus - Teichert and Nutzel (2015)