Inspired by this post by @biologymemes
Image sources under the cut:
In order of appearance:
Global Paleogegraphy during the Late Devonian by Wayne Ranney (article: The Antler Orogeny and the First Suspect Terrane: Middle Devonian to Late Pennsylvanian: Ca. 400–300 Ma )
Phylum : Chordata
Class : Osteostraci
Order : Atelaspidiformes
Genus : Hemicyclaspis
Species : H. murchisoni
Late Silurian/Early Devonian
13 cm long (size)
Europe and North America (map)
Whencompared to other atelaspidiformes, Hemicyclaspis is considered to have been a better swimmer thanks to the presence of a more developed tail and two forward flaps that acted like pectoral fins, controlling pitch and allowing for level swimming in open water. Despite thee swimming adaptations, the mouth was still on the bottom which means that Hemicyclaspis was probably still a bottom feeder that searched for small organisms and organic matter in the sediment of Silurian oceans.
A small shoal of Hemicyclaspis Murchisonii or “Gornal Fish”. Silurian Brooches. Inspired by a shallow coral Silurian sea somewhere near Dudley @bcgeopark. Ready for travelling to the Lake District for @potfest.co.uk #hemicyclaspis #calymene #silurian #geology #geologyrocks #geologists #minerology #geologist #geologypage #geologystudent #geologylife #geologywonders #fossil #fossils #fossilsofinstagram #trilobite #trilobites #trilobitetuesday #trilobitefossil #calymene #hemicyclaspis #ammonite #ammonites #dudley #dudleynature #blackcountrygeopark #blackcountrygeoparks #blackcountrylivingmuseum #blackcountryculture #fossilpreparation #fossilhunting #minerology https://www.instagram.com/p/CRuWT-2lIo4/?utm_medium=tumblr
A small shoal of Hemicyclaspis Murchisoni or “Gornal Fish”. Silurian Brooches. Inspired by a shallow coral Silurian sea somewhere near Dudley @bcgeopark. Ready for travelling to the Lake District for @potfest.co.uk #hemicyclaspis #calymene #silurian #geology #geologyrocks #geologists #minerology #geologist #geologypage #geologystudent #geologylife #geologywonders #fossil #fossils #fossilsofinstagram #trilobite #trilobites #trilobitetuesday #trilobitefossil #calymene #hemicyclaspis #ammonite #ammonites #lakedistrict #lakedistrictnationalpark #visitthelakedistrict #escapetheeveryday #potfest #potfestinthepens #potfestscotland #potfestscotland #potfestinthepark https://www.instagram.com/p/CRuWT-2lIo4/?utm_medium=tumblr
Happy New Glazing Year. Silurian Stoneware Noodle Bowl. A new variant of my blue glaze; as satin a surface as I can devise without the cutlery marking that is suffered by all matt glazes and also microwave, oven and dishwasher and acid proof. #glazeexperiments #glazeexperiment #nationalfossilday #nationalfossilday2021 #hemicyclaspis #calymene #calymeneblumenbachii #calymenetrilobite #hemicyclaspismurchisonii #blackcountrygeopark #blackcountrygeoparks #blackcountry #dudley #fossils #trilobite #jawlessfish #jawlessfishes https://www.instagram.com/woodsettonpots/p/CYJxKi5IO_t/?utm_medium=tumblr
More New Noodles... with with a side order of Gastropoda ammonite and titanium ilmenite and cobalt; delicious! #hemicyclaspis #calymene #silurian #geology #geologyrocks #geologists #minerology #geologist #geologypage #geologystudent #geologylife #geologywonders #fossil #fossils #fossilsofinstagram #trilobite #trilobites #trilobitetuesday #trilobitefossil #calymene #hemicyclaspis #ammonite #ammonites #paleo #paleontologyrocks #paleobiología https://www.instagram.com/p/CUQrr2OoEBo/?utm_medium=tumblr
New Noodles... with with a side order of trilobite and titanium ilmenite and cobalt; delicious! #hemicyclaspis #calymene #silurian #geology #geologyrocks #geologists #minerology #geologist #geologypage #geologystudent #geologylife #geologywonders #fossil #fossils #fossilsofinstagram #trilobite #trilobites #trilobitetuesday #trilobitefossil #calymene #hemicyclaspis #ammonite #ammonites #paleo #paleontologyrocks #paleobiología https://www.instagram.com/p/CULSgipom-C/?utm_medium=tumblr