helcionelloid;
rostroconch;
mollusc;
Early Ordovician;
France;
D O I:
10.1111/j.0031-0239.2004.00414.x
中图分类号:
Q91 [古生物学];
学科分类号:
0709 ;
070903 ;
摘要:
Lamaureriella vizcainoi gen. et sp. nov., from the Montagne Noire region of southern France, is a coiled, laterally compressed, bilaterally symmetrical mollusc in which prominent folds in the apertural margin produce a characteristic spiral plication across each lateral surface. Similar plications are present in technophorid rostroconchs but the prominent coiling and lack of a pegma suggest that Lamaureriella is a helcionelloid. It is the second such genus described from Early Ordovician rocks.
机构:
Amgueddfa Cymru Natl Museum Cardiff, Dept Nat Sci, Cathays Pk, Cardiff CF10 3NP, WalesAmgueddfa Cymru Natl Museum Cardiff, Dept Nat Sci, Cathays Pk, Cardiff CF10 3NP, Wales
Muir, Lucy A.
Gutierrez-Marco, Juan Carlos
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机构:
CSIC, UCM, Inst Geociencias, Jose Antonio Novais 12, E-28040 Madrid, Spain
Area Paleontol GEODESPAL, Fac Ciencias Geol, Jose Antonio Novais 12, E-28040 Madrid, SpainAmgueddfa Cymru Natl Museum Cardiff, Dept Nat Sci, Cathays Pk, Cardiff CF10 3NP, Wales