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Figure 3

From: Cretaceous amber fossils highlight the evolutionary history and morphological conservatism of land snails

Figure 3

Lagocheilus cretaspira Asato and Hirano, sp. nov. and L. electrospira Asato and Hirano, sp. nov. from the mid-Cretaceous Burmese amber. (a–d) Holotype of L. cretaspira (NMNS PM 28272). (a) Abapertural view showing hair-like periostracum. (b) Apical view showing a protoconch. (c) Close-up of apical showing a protoconch. (d) Close-up of square (d) in (a) showing hair-like periostracum. (e–h) Holotype of L. electrospira (NMNS PM 28273). (e) Abapertural view showing long hair-like periostracum. (f) Apical view showing a protoconch. (g) Close-up of square (g) in (e) showing long hair-like periostracum. (h) Apertiral view showing an umbilicus.

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