Order
CARCHARHINIFORMES Compagno, 1973 Family CARCHARHINIDAE Jordan & Evermann, 1896 _________________________________________________________________________ |
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Genus
ABDOUNIA Cappetta, 1980 |
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Abdounia
minutissima (Winkler, 1873) |
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Early
Eocene (Ypresian) of Egem (Belgium) where this species is particularly
common. Characterized
by a single pair of cusplets and on occasion the presence of short labio-basal
folds. |
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Casier
(1946) described Abdounia biauriculata from the Ypresian of
Forest/Vorst in Belgium. From the same locality, Nolf (1988) figured
a single specimen of Abdounia beaugei (Arambourg, 1935), originally
described from the Ypresian of Morocco. Both morphologies seem to have
coexisted in the Belgian Ypresian (Noubhani & Cappetta, 1997). However,
it proved to be very difficult to clearly separate both. Abdounia
biauriculata might represent a junior synonym of A. beaugei.
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Abdounia
biauriculata (Casier, 1946) |
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Early
Eocene, Ypresian, Egem, Belgium. |
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Abdounia
beaugei (Arambourg, 1935) |
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Early
Eocene, Ypresian, Egem, Belgium. |
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Abdounia
recticona first occurred during deposition of
the Egem Sands (not found in the clay underneath) and became very common
in the Lutetian. |
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Genus PSEUDABDOUNIA Ebersole, Cicimurri & Stringer, 2019 |
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Pseudabdounia
recticona (Winkler, 1873) |
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Early
Eocene (Ypresian), Egem Sands, Egem (Belgium). |
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Middle
Eocene, Lutetian, Brussel Sand Formation, Belgium. |
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Genus
PHYSOGALEUS Cappetta, 1980 |
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Physogaleus
secundus (Winkler, 1874) |
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Early
Eocene, Ypresian, Egem, Belgium. |
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Genus
RHIZOPRIONODON Whitley, 1929 |
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Rhizoprionodon
sp. |
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Early Eocene, Ypresian, Egem, Belgium. |
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| ARAMBOURG, C., 1935. Note préliminaire sur les vertébrés fossiles des phosphates du Maroc. Bulletin de la Société Géologique de France, 5(5): 413-440. | |
| CAPPETTA, H., 1980. Modification du statut générique de quelques espèces de sélaciens crétacés et tertiaires. Palaeovertebrata, 10: 29-42. | |
| CASIER, E., 1946. La fauna ichthyologique de l’Yprésien de la Belgique. Mémoires du Musée royal d’Histoire naturelle de Belgique, 104: 1-267. | |
| NOUBHANI,
A. & CAPPETTA, H., 1997. Les
Orectolobiformes, Carcharhiniformes et Myliobatiformes (Elasmobranchii, Neoselachii) des bassins à phosphate du Maroc (Maastrichtien-Lutétien basal). Systématique, biostratigraphie, évolution et dynamique des faunes. PalaeoIchthyologica, 8: 1-327. |
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