Most of the species found are small species (up to 1 cm), in general well preserved. The teeth showed at this section represent many years of collecting.
The different species that can be found in these sediments are - of course- point of discussion. I have decided to compose my list according to my own collection and include some pictures of most of the species. Additionally I might add species found by other collectors, preferably with the name of the collector and a picture. The "thesis" of Stefaan van Simaes (1994) was a great help in the identification of some species, as was the help of some other experienced collector's.
In the table below order, species and rarity are listed. The rarity is based on the work of Stefaan van Simaeys and my personal collecting-experience at this site. It is based on the local outcrops in West-Flanders, NOT worldwide.
Very rare **** Rare *** Common ** Abundant *
Table 1; List of shark species EKCM - IV
Order Species Rarity picture Squaliformes Squalus smithi (Herman 1982) ** Squatiniformes
Squatina prima (Winkler 1874)
**
Heterodontiformes Heterodontus woodwardi (Casier 1946) *** Orectolobiformes
Nebrius thielensis (Winkler 1874)
***
Paleorhincodon dartevellei (Arambourg, 1952)
****
Lamniformes ?Carcharias atlasi (Arambourg 1952)
*** ** Carcharias teretidens (White 1931) *** Carcharocles sp. **** >Hypotodus robustus (Leriche 1921)< *** >Hypotodus verticalis (Agassiz 1843)< ** Odontaspis Winkleri (Leriche 1905) ** Otodus obliquus Agassiz 1843 **** **** Isurolamna affinis (Casier 1947) *** Lamna lerichei (Casier 1946) * * Xiphodolamia eocenica (Woodward 1899) **** Carchariniformes Abdounia beaugei (Arambourg 1935) ** Abdounia minutissima (Winkler 1873) * Galeocerdo latidens Agassiz 1843 **** Galeorhinus lefevrei (Dameries 1891) ** Galeorhinus minor (Agassiz 1843) * Galeorhinus ypresiensis (Casier 1946) ** Mustulus vanderhoefti (Herman 1982) **** Premontreia degremonti (Cappetta 1992) ** Physogaleus secundus (Winkler 1874) *
Physogaleus tertius (Winkler 1874) *** Rhizoprinodon sp. **** Scyliorhinus burnhamensis (Cappetta 1992) **** Scyliorhinus gilberti Casier 1946 ** Scyliorhinus pattersoni Capetta 1976 *** Scyliorhinus woodwardi (Cappetta 1976) ****
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Table 2; List of ray species Egem
Order Species Rarity picture rajaformes Rhynchobatus vincenti Jaekel, 1894 ****
Rhinobatis bruxelliensis(Jaekel 1894) ** Myliobatiformes Couptezia woutersi Capetta, 1982 ****
Dasyatis jaekeli (LEriche 1905) ** Jacquhermania duponti (Winkler 1874) ***
References
* Cappetta Henri, Chondrichthyes II /Mesozoic and Caenozoic Elasmobranchii Handbook of Palaeoichthyology Vol. 3B, 1987
Jan Werbrouck's homepage Stenen en fossielen also contains some Egem material. Another site wich has an extensive egem-section is Belgian sharkteeth . And an English fauna of the same period is found at Sheppyfossils, which handles the London Clay.
* Nolf Dirk, Haaie- en Roggentanden uit het Tertiair van Belgie , KBIN, Brussel, 1986
* Simaes Stefaan van, De visfauna uit de basis van de Klei van Egemkapel in de groeve Ampe te Egem (Onder-Eoceen van Noordwest-Belgie), Tielt, 1994