Because the bones were mostly found in alluvial deposits, he concluded that they belonged to animals that had died elsewhere and were carried to their new location by floodwaters.
Mengingat tulang - tulang tersebut kebanyakan ditemukan dalam endapan aluvial, ia menyimpulkan bahwa itu adalah tulang dari binatang yang mati di tempat lain lalu hanyut terbawa banjir ke lokasi yang baru.