Fossil record
If there is anyone who would like to prepare a summary on the fossil history of opisthobranchs it would be very welcome.
Authorship detailsRudman, W.B., 2002 (May 28) Fossil record. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/fossil
Related messages
Re: Opisthobranch Fossil History
June 2, 2002
From: Kathe R. Jensen
Dear Bill & Lucas,
I am not volunteering to write about this topic, but I can give some references. In my paper on sacoglossan evolution I have a short paragraph on the fossil record, and I found that Bandel (1988) and Bieler (1992) list acteonid-like fossil shells from the Carboniferous. Haas (1953) illustrates fossils of the more usual "bubble-shell" types (similar to Retusa, Acteocina, etc.) from Upper Triassic. And there are numerous records of fossil opistobranchs from the Tertiary (see f.ex. Valdes & Lozouet, 2000).
References:
• Bandel, K. 1988. Early ontogenetic shell and shell structure as aids to unravel gastropod phylogeny and evolution. Malacological Review, 4 (suppl.): 267-272.
• Bieler, R. 1992. Gastropod phylogeny and systematics. Annual Review of Ecology and Systematics, 23: 311-338.
• Haas, O. 1953. Mesozoic invertebrate faunas of Peru: Part 1. General Introduction. Part 2. Late Triassic gastropods from central Peru. Bulletin of the American Museum of Natural History, 101: 1-528.
• Jensen, K.R. 1997. Evolution of the Sacoglossa (Mollusca, Opisthobranchia) and the ecological associations with their food plants. Evolutionary Ecology, 11: 301-335.
• Valdes, A. & Lozouet, P. 2000. Opisthobranch molluscs from the Tertiary of the Aquitaine Basin (south-western France), with descriptions of seven new species and a new genus. Palaeontology, 43(3): 457-479.
Greetings,
Kathe
jensen@ait.ac.th
Jensen, K.R., 2002 (Jun 2) Re: Opisthobranch Fossil History . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7137Thanks Kathe,
Bill Rudman
Fossil holoplanktonic Mollusca
June 1, 2002
From: Arie W. Janssen
For some reason I discovered Bill's Sea Slug Forum only a few days ago. And I think it might be useful to let you all know that I specialise on mainly fossil heteropods and pteropods of Cainozoic age. I used to be a curator of the Dutch national Museum of Natural History (Palaeontology Department) at Leiden, the Netherlands, but currently I live a retired life in Malta, where I continue my research studying many samples from all over the world. Please have a look at my website http://sites.waldonet.net.mt/ariewe/ to find further details about me and my work and a lot of info on holoplanktonic molluscs and their literature. I gratefully accept identification requests on fossil holoplanktonics ...
PHOTO: Clio (s. lat.) carinata (Audenino, 1897)
Loc: Çörten (Turkey, Adana)Miocene, 'Vindobonian', brownish-grey clays
Coll. National Museum of Natural History, Leiden (The Netherlands), reg. nr RGM 393.111 (leg. A.W. Janssen, 11 May 1990)
[Published Janssen (1995, pl. 6, fig. 1)]
Scale bar = 1 mm
A paper I am about to conclude is on the pteropod subfamily Cuvierininae, in which the evolutionary trends are analysed and new taxa will be described, both fossil and Recent.
Arie W. Janssen
ariewe@waldonet.net.mt
Janssen, A W., 2002 (Jun 1) Fossil holoplanktonic Mollusca. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6860Opisthobranch Fossil History
May 31, 2002
From: Juan Lucas Cervera
Dear Bill,
I would like to know the period in which appeared the first known fossils of opisthobranchs.
Thank you.
Lucas.
lucas.cervera@uca.es
Cervera, J.L., 2002 (May 31) Opisthobranch Fossil History . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7015I think there are 'opisthobranchs' known from as far back as the Cretaceous. If there is anyone who would be willing to prepare a summary on the topic it would be very welcome
Best wishes,
Bill Rudman
