Zurcherella is a Lower Cretaceous (Upper Barremian - Upper Aptian desmoceratid ammonite from France and Colombia (Apón and Yuruma Formations, La Guajira).[1] Its shell is moderately compressed and rather involute (outer whorls covering most of the inner), with fine sinuous ribs that arise some distance above the umbilical rim. Zurcherella differs from its descendant Uhligella in that in the latter, ribs arise from the umbilical shoulder.
Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press. L368.
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zurcherella, lower, cretaceous, upper, barremian, upper, aptian, desmoceratid, ammonite, from, france, colombia, apón, yuruma, formations, guajira, shell, moderately, compressed, rather, involute, outer, whorls, covering, most, inner, with, fine, sinuous, ribs. Zurcherella is a Lower Cretaceous Upper Barremian Upper Aptian desmoceratid ammonite from France and Colombia Apon and Yuruma Formations La Guajira 1 Its shell is moderately compressed and rather involute outer whorls covering most of the inner with fine sinuous ribs that arise some distance above the umbilical rim Zurcherella differs from its descendant Uhligella in that in the latter ribs arise from the umbilical shoulder ZurcherellaTemporal range Barremian Aptian 122 112 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom Animalia Phylum Mollusca Class Cephalopoda Subclass Ammonoidea Order Ammonitida Superfamily Desmocerataceae Family Desmoceratidae Genus ZurcherellaCasey 1934 Species Z zurcheri Zurcherella is the earliest of the desmoceratid subfamily Beudanticeratinae which includes among others Uhligella Beutanticeras and Beutantiella References edit Zurcherella at Fossilworks orgFurther reading editArkell et al 1957 Mesozoic Ammonoidea Treatise on Invertebrate Paleontology Part L Geological Society of America and University of Kansas Press L368 nbsp This ammonite related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Zurcherella amp oldid 1166000791, wikipedia, wiki, book, books, library,
