2014
DOI: 10.7717/peerj.383
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Abstract: The molluscan shell can be viewed as a petrified representation of the organism’s ontogeny and thus can be used as a record of changes in form during growth. However, little empirical data is available on the actual growth and form of shells, as these are hard to quantify and examine simultaneously. To address these issues, we studied the growth and form of a land snail that has an irregularly coiled and heavily ornamented shell–Plectostoma concinnum. The growth data were collected in a natural growth experime… Show more

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Cited by 21 publications
(15 citation statements)
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“…3B). The elaborate sculpture in the terrestrial prosobranch family Diplommatinidae we consider lamellae and are generally termed commarginal ribs (Liew et al, 2014) …”
Section: Lacking Varicesmentioning
confidence: 99%
“…3B). The elaborate sculpture in the terrestrial prosobranch family Diplommatinidae we consider lamellae and are generally termed commarginal ribs (Liew et al, 2014) …”
Section: Lacking Varicesmentioning
confidence: 99%
“…open sci. 7: 191471 accretion of material at the aperture, happen simultaneously [27]. There is thus an intimate correlation between the growth and the final shape of the shell.…”
Section: Macroscopic and Phenotypic Divergencementioning
confidence: 98%
“…Many gastropods and ammonoids exhibit a morphogenetic countdown, in which a specific temporal series of structures form (e.g., changes to the sculpture or coiling axis) prior to the terminal aperture (Seilacher & Gunji, 1993;Webster & Vermeij, 2017). Examples include the unusual coiling of heteromorph ammonites ( Figure 6A; Seilacher & Gunji, 1993), the recurved "sinistroid" tuba of some diplommatinid land snails ( Figure 6C; Liew & Schilthuizen, 2016;Liew et al, 2014), and the nine separate origins of subterminal varices (Webster & Vermeij, 2017). The precise positioning during growth of these countdown structures requires the same level of control as synchronized varices.…”
Section: Synchronized Sculpture In Gastropodamentioning
confidence: 99%