The primary goal of the Cyprinodontogeny project is to gather knowledge on the Early Life History (ELH) of the Cyprinodontiformes. The first results of this project are presented in 'Cyprinodontogeny; an introduction to the Early Life History (ELH) of Cyprinodontiformes'. This book presents the 'state of the art' knowledge on ELH published before October 30, 2023. An illustrated catalog, interesting to hobbyists (breeders) and scientists. (Click here for details and ordering).

Cyprinodontogeny is a fictive name, combining Cyprinodontiformes (the order), also known as 'killies'; and Ontogeny (the study of - all - the developmental events that occur during the existence of a living organism).

As stated in the catalog, describing the ELH stages is an ongoing process. The full list of all available descriptions, called 'CELH-sheets' (an abbrevation of: Cyprinodontiform Early Life History), is listed here.

Note: editors / researchers may ask for access to all of the CELH-sheets (in Google docs) and/or permission to (re)print illustrations by sending a request to the author.



For data on recent, extant species I refer to the excellent database Killi-Data Online by Jean Huber.

In preparation

Scheduled for publication: November 2023. 

An amazing atlas, including more than 150 species of egglaying and livebearing fossil killifish. This first ever catalog will be the ultimate and most complete reference guide on the subject; illustrated with idealized color drawings (as indicated by the sample page of Aphanius italicus on the left) showing the fossils the way the species probably looked like in real life.

Note: the atlas is a comprehensive edition of the series 'Killi on the Rocks' published in Killi Nieuws 2010-2012 (in Dutch). Completed with many additional references and new records as my research proved this series was far from complete...