Figure 9 | Scientific Reports

Figure 9

From: First ovum-in-ovo pathological titanosaurid egg throws light on the reproductive biology of sauropod dinosaurs

Figure 9

Field photograph and microscopic images of the eggshell from egg number C showing oospecies Fusioolithus baghensis characterized by fan-shaped shell units with arching growth lines and basal end cap units. (a) The ovum-in-ovo egg with the boxed area showing the region from where the specimen was extracted. (b) Radial Scanning Electron Microscope (SEM) photomicrograph of the eggshell showing partially preserved fan-shaped shell unit. (c) Photomicrograph of the radial thin section of the eggshell under polarized light microscopy showing partially preserved shell units (see black arrow) and characteristic swollen basal cap units (see red arrow). (d) Photomicrograph of the radial thin section of the eggshell under polarized light microscopy exhibiting fused shell units and growth lines (see black arrow) and swollen basal cap (see red arrow).

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