Ibrahim, N.; Maganuco, S.; Dal Sasso, C.; Fabbri, M.; Auditore, M.; Bindellini, G.; Martill, D.M.; Zouhri, S.; Mattarelli, D.A.; Unwin, D.M.; Wiemann, J.; Bonadonna, D.; Amane, A.; Jakubczak, J.; Joger, U.; Lauder, G.V.; Pierce, S.E.
taxonomy · range · morphology · ecology · methods
Primary caudal anatomy and physical-model study of a Spinosaurus aegyptiacus specimen; swimming performance is experimental inference rather than observed fossil behavior.
Spinosaurus aegyptiacus specimen FSAC-KK 11888 preserves a deep, flexible tail tested with physical models for aquatic propulsion; the experiment supports a swimming-performance hypothesis, not directly observed behavior or a genus-wide ecology.
claim:taxon:spinosaurusSpinosaurus is displayed at 100.5–93.9 Ma only as the Cenomanian specimen-bearing interval for FSAC-KK 11888, not the complete genus range. The interval is a source-bounded sample window, not a global FAD, LAD, divergence date, continuous occupancy claim or direct-ancestor assertion.
claim:taxon:spinosaurus:source-bounded-range-rc49