- Dr Adeline Kerner

Creation date: 2021/11/18 14:45:14

The computer-aided knowledge base is composed by the 309 genera considered to be valid at present. Concerning the geographical repartition it is a world-wide scale. Stratigraphical extension contains all the Cambrian even if most of Archaeocyatha lived during lower Cambrian. Each genus is illustrated with types specimens and sometimes with additional specimens better preserved. 120 descriptors are used: · 85 corresponding to morphological and ontogenetic data · 8 to stratigraphic and geographic data · 27 to taxonomic data. To each descriptor and character state we associated a definition and pictures and/or sketches. The literature was consulted and analysed to collect most of characters proposed by paleontologists to identify archaeocyath’s genera (Debrenne

@ Adeline Kerner