@article{Getty_2016, title={Megapezia longipes Willard and Cleaves 1930 from the Pennsylvanian Rhode Island Formation of Massachusetts: ichnotaxonomic status}, volume={52}, url={https://journals.lib.unb.ca/index.php/ag/article/view/24338}, DOI={10.4138/atlgeol.2016.006}, abstractNote={<p><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;"><em></em>The type and only specimen of the ichnospecies </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Megapezia longipes</span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">, from the Pennsylvanian Rhode Island Forma-tion of Plainville, Massachusetts, consists of two poorly defined tracks, one made by a manus and the other by a pes, rather than a single pedal imprint. Whereas the type species of </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Megapezia</span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">, </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Megapezia pineoi</span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">, has tetradactyl pedal imprints, the pes imprint of </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Megapezia longipes </span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">is pentadactyl, a feature that precludes assignment to this ichnogenus. Rather, the tracks share two characteristics with the ichnogenus </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Matthewichnus</span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">, namely elongate digits II and III on the manus, and a pes imprint oriented anterolaterally to the manus imprint, and are thus tentatively reassigned to that ichnogenus. Cf. </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Matthewichnus longipes </span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">is retained as a separate ichnospecies pending the collection of additional ma-terial that can be compared with other species within the ichnogenus. With the tentative reassignment of the Plainville tracks to </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Matthewichnus</span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">, </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Megapezia </span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">becomes monospecific and is no longer recorded in New England. The tracks are the first known occurrence of </span></span><em><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;"><span style="color: #221e1f; font-family: Minion Pro,Minion Pro; font-size: small;">Matthewichnus </span></span></span></em><span style="color: #221e1f; font-size: small;"><span style="color: #221e1f; font-size: small;">from this region. </span></span></p>}, journal={Atlantic Geoscience}, author={Getty, Patrick R.}, year={2016}, month={Apr.}, pages={119–124} }