manolo Posted December 18, 2012 Share Posted December 18, 2012 Hi. Anybody can tell me the difference between Scabriscutellum and Scutellum from Morocco? And the difference between Harpes macrocephalus and Harpes perradiatus from Morocco? ASOCIACIÓN PALEONTOLÓGICA ALCARREÑA NAUTILUS http://www.paleontologia-nautilus.com Link to comment Share on other sites More sharing options...
squalicorax Posted December 18, 2012 Share Posted December 18, 2012 (edited) http://www.fossilmal...rilobite-36.htm It is distinguished by lack of fringing pygidial spines from Thysanopeltis, and from Scutellum by the ribbing of the pygidium. I think macrocephalus refers to an enlarged cephalon Edited December 18, 2012 by squalicorax My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets Link to comment Share on other sites More sharing options...
piranha Posted December 19, 2012 Share Posted December 19, 2012 Attached are the formal descriptions for Harpes, Scabriscutellum and Scutellum. I have included figures for the harpid trilobites only as you didn't specify any scutelluids and there are dozens of possibilities to choose from. Also worth noting; I found two harpid genera for the species perradiatus in Morocco: Harpes and Helioharpes. The attachments are sourced from the following references. Richter, Rudolf & Richter, Emma (1943) Trilobiten aus dem Devon von Marokko mit einem Anhang über Arten des Rheinlands Studien im Palaozoikum der Mittelmeer-Lander. Senckenbergiana 26(1-3):116-199 Whittington, Harry B. (1949) A Monograph of the British Trilobites of the Family Harpidae. Palaeontographical Society, London. 447:1-55 Snajdr, Milan (1960) Studie o celedi Scutelluidae (Trilobitae). A study of the family Scutelluidae (Trilobitae) Nakladatelstvi Ceskoslovenske akademie ved Praha. 1-263 Pribyl, A. & Vanek, K (1981) Preliminary report on some new trilobites of the family Harpetidae Hawle et Corda Casopis pro Mineralogii a Geologii. 26:187-193 Ebach, Malte C. & McNamara, Kenneth J. (2002) A systematic revision of the family Harpetidae (Trilobita) Records of the Western Australian Museum. 21:235-267 Link to comment Share on other sites More sharing options...
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