Updates are available Correction dated 2021-06-07

Article History

Received: 25 June 2018

Accepted: 13 December 2018

First Online: 8 January 2019

Change Date: 7 June 2021

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1186/s12862-021-01843-4

Ethics approval and consent to participate

: Permission to excavate at the Stonington Peninsular locality was given by the Board of Commissioners of Delta County, Michigan.

: Not applicable.

: The authors declare they have no competing interests.

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