30431 - Top Quality Association of 2 Albertella helena Middle Cambrian Trilobites - Nevada, USA Plesiosaur marine snakes
Yard notes & kiln story
Description
marine snakes
Environments: marine (23 collections)
Thoral 1946 (trilobite)
Korn and Klug 2002 and Sepkoski 2002
Rhabdotarachnoides
30431 - Top Quality Association of 2 Albertella helena Middle Cambrian Trilobites - Nevada, USA Plesiosaur marine snakesAlbertella helena, Walcott 1908 PaleoDB taxon number: 396807 Belongs to Albertella according to C. E. Resser 1936 Sister taxa: Albertella eiloitys, Albertella judithi, Albertella lata, Albertella longwelli, Albertella nitida, Albertella robsonensis, Albertella rossensis, Albertella sampsoni, Albertella schenki, Albertella spectrensis Type specimen: USNM 53410 (lectotype)