Třída: Chondrichthyes - paryby
Řád: Myliobatiformes -
Čeleď: Dasyatidae - trnuchovití

Synonyma: Dasyatis aspera (Cuvier, 1816); Dasyatis hastata (non DeKay, 1842); Dasybatus marinus Garman, 1913; Pastinaca acanthura Gronow, 1854; Pastinaca aspera Cuvier, 1816; Pastinaca hasta (non DeKay, 1842); Raia gesneri Cuvier, 1829; Raja centroura Mitchill, 1815; Trygon aldrovandi Risso, 1827; Trygon brucco Bonaparte, 1834; Trygon spinosissima Duméril, 1865; Trygon thalassia Müller & Henle, 1841.

Typová lokalita: Pobřeží Long Islandu, New York, USA.

Reference: Mitchill, S. L. 1815. The fishes of New York described and arranged. Transactions of the Literary and Philosophical Society of New York v. 1: 355-492, Pls. 1-6.