Talk:Erettopterus

Anatomical Description
I have addeed an anatomical description derived from the Treatise on Invertbrate Paleontology.--Digthepast (talk) 15:09, 21 November 2009 (UTC)
 * Are we sure this image shows this genus, and not Pterygotus as it is labelled as, and ? If this new identity is correct, it needs to be recategorised on Commons too. FunkMonk (talk) 02:32, 18 April 2018 (UTC)
 * Yes, the fossil in the image has a bilobed telson which is one of the distinguishing features of Erettopterus. Ichthyovenator (talk) 05:23, 18 April 2018 (UTC)
 * Exactly, Pterygotus ' telson is different. And the name of the file "Pterygotus -b" could refer to Pterygotus bilobus, now classified as Erettopterus. Super   Ψ   Dro  12:18, 18 April 2018 (UTC)
 * Interesting, I wonder how many more mislabelled images we have like tat... FunkMonk (talk) 12:33, 18 April 2018 (UTC)
 * I went through some of the Pterygotus images and re-categorized them as Erettopterus (1, 2, 3 and 4). There might be more out there and there might be similar cases with other eurypterids. Ichthyovenator (talk) 13:31, 18 April 2018 (UTC)