|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Euomphalina
It was recombined as Euomphalus (Ecculiomphalus) laxus by Hall (1876); it was recombined as Phanerotinus laxus by Clarke and Swartz (1913); it was synonymized subjectively with Euomphalus subplanus by Yochelson (1962); it was recombined as Serpulospira laxus by Blodgett and Johnson (1992) and Wagner (2017).
|Year||Name and author|
|1859||Euomphalus laxus Hall p. 26|
|1876||Euomphalus (Ecculiomphalus) laxus Hall p. 16 figs. pl. 16|
|1879||Euomphalus laxus Hall p. 60 figs. pl. 16 f. 8-9, 16-18|
|1913||Phanerotinus laxus Clarke and Swartz pp. 669 - 670 figs. pl. 67 f. 26|
|1992||Serpulospira laxus Blodgett and Johnson p. 100|
|2017||Serpulospira laxus Wagner p. 1139|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.