¶Byron BLESSED, Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol. BS8 1RJ, UK. E-mail:
ByronBlessed@palaeokarst.freeserve.co.uk

Distinct vertebrate assemblages from an Upper Triassic cave deposit
In south-west Britain, Mesozoic karstic deposits can be found within Carboniferous Limestones lying immediately beneath an uncomformity with overlying Triassic continental deposits. These deposits contain a range of surface-derived material, often revealing concentrated and isolated vertebrate remains, that would otherwise be lost in an `open' environment.
Cromhall Quarry, the most famous and extensively studied of these deposits, has a growing number of identified taxa (over 24). Blessed suggests that the Cromhall palaeokarst deposit represents a cave system with 3 separate faunal assemblages; a) terrestrial-derived assemblage - rare tetrapod remains and evidence of the first mammals; b) a `classic' Rhaetian fish fauna (with taxa such as Lissodus minimus, `Hybodus' minor, `Gryolepis' and `Birgeria'), c) enigmatic reworked Carboniferous shark teeth [BUT check Duffin 1996].

Jurassique de Lorraine. Cossmanniana,
Paris, Hors-série No. 2, Août 1993, pp. 52-
55, sans figs.
Duffin C.J. &Delsate D. 1993. The age of
the Upper Triassic vertebrate fauna from
Attert (Province of Luxembourg, Belgium).
Belgian Geological Survey - Professional
Paper, 264, 33-44.
Duffin C.J., & Delsate D. 1993. A new
myriacanthid holocephalan
(Chrondrichthyes) from the Early Jurassic
of Luxembourg - N. Jb. Geol. Paläont. Mh.,
1993 (11): pp. 669-680; Stuttgart. Delsate D., & Thies D. 1995. Teeth of the
fossil shark AnneaThies 1983
(Elsamobranchii, Neoselachii) from the
Toarcian of Belgium. Belgium Geological
Survey Professional Paper, Elasmobranchs
et Stratigraphie, 278, 45-64
Duffin C.J. & Delsate D. 1995. New record of
the early Jurassic myriacanthid
holocephalanMyriacanthus paradoxus
AGASSIZ, 1836 from Belgium. Belgian
Geological Survey - Professional Paper,
278, 1-9
Delsate D. 1996. Une nouvelle dent
d'Haramiyidae (Thomasia Woutersi Butler &
Macintyre 1994, Mammalia, Allotheria) du
Rhétien d'Habay-la-vieille (Lorraine Belge).
Bulletin van de Belgische Vereniging voor
Geologie. Bulletin de la Société belge de
Géologie, T. 104 (1-2), 1995, pp. 23-34. Maubeuge P.L. & Delsate D. 1996.
Paleogeographic des bordures ardennaises
et vosgeennes au Rhétien: les terres
emergées a la fin de la periode triasique
Note preliminaire. Bulletin de la Classe des
Sciences, 7, 249-260.
Delsate D. 1998. L'Ichthyofaune du Toarcien
luxembourgeois. Cadre général et catalogue
statistique. Trav. sci. Mus. nat. hist. nat.
Lux. 31:1-101.

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MasatoshiGOTO, Departmentof Anatomy, School of Dental Medicine, Tsurumi University, Tsurumi-ku, Yokohama 230, JAPAN

Goto M. 1997. A palaeontological travel to
Germany. Solnhofen Plattenkalk and the
Mesozoic Fish Symposium. Education of
Earth Science and Scientific Movement
(Chigaku Kyoiku to Kagaku Undou), no. 28,
pp.87 - 96.
Goto M. 1998. Circum-Arctic Palaeozoic
vertebrates (1996-2000) in Japan. IGCP
Activities in Japan 1997, 25-26, IGCP
National Committee of Japan 1998:25-26. Goto M., & Hitomi T. 1998. On a tooth of
Chlamydoselachussp. from the Himenoura
Group (Upper Cretaceous) in Amakusa-
kamishima, Kyushu Islands, south west
Japan. Abstracts of the 1998 Annual
Meeting of the Palaeontological Society of
Japan. p. 24.
Goto M., Omori M., & Uyeno T. 1998. On the
tooth plates of the Diodontidae, porcupine
fish, from the Miura Group (Late Miocene) in

Modified from Abstracts, Palaeontology, Bristol '99 sponsored by Palaeontological (UK) 28th April, 1999, Bristol

Progressive
Conference Association

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¶Dr Dominique DELSATE, CRS du MNHN Luxembourg, Paléontologie, 25 Rue Münster, L-2160 LUXEMBOURG

Here is the fauna I identified from the Luxembourg Ladinianof Moersdorf (common work with Chris Duffin) Hybodus plicatilis, Hybodus multiplicatus/multiconus, Acrodus gaillardoti, Polyacrodussp, Palaeobates angustissimus, Lissodussp and Lissodus nov.sp, and Actinopterygian teeth I am busy attempting to determinecf Birgeria, cf Gyrolepis, Colobodus... I am also still busy sorting sediments from the same outcrop, trying to gather more material.

Delsate D., Herman J. & Lepage JC. 1989.
Nouvelles faunes D'elasmobranchs du
Toarcien de la Lorraine Belge. Bulletin de la
Societe belge de Geologie, 98-1, 77-80 Delsate D. & Lepage J.C. 1990 Decouverte
D'une Fauna Originale D'Elasmobranches
dans les Phosphates du Toarcien Lorrain
(Couche a Coeloceras Crassum). Bulletin de
l'Academie et Societe lorraines des
Sciences, 29(3), 153-161
Delsate D. 1992. Chondrichthyens
mesozoiques du Luxembourg Note
preliminaire. Bull. Soc. Nat. Luxemb., 93,
181-193.
Delsate D. 1993. Synthése Des Faunes
D'élasmobranches du Trias et du