Homepage › Forums › What Is It? › Ordovician/Silurian Canal Rocks Tagged: Ordovician This topic contains 6 replies, has 2 voices, and was last updated by Inkar Arzah 1 year ago. Viewing 7 posts - 1 through 7 (of 7 total) Author Posts January 26, 2018 at 4:43 pm #30457 Inkar ArzahParticipant I found these in rocks in a historical canal, and therefore cannot chisel them out. Are they crinoid stems? They are likely Ordovician rocks. January 26, 2018 at 4:46 pm #30458 Inkar ArzahParticipant Here’s the photo Attachments:You must be logged in to view attached files. January 26, 2018 at 9:01 pm #30461 Jim ChandlerParticipant Most definitely crinoids. You could probably also find them in a nearby outcrop. Jim January 27, 2018 at 12:19 pm #30462 Inkar ArzahParticipant Thanks for your help January 29, 2018 at 12:29 pm #30472 Inkar ArzahParticipant What is this part circled in red? Is it a crown? Attachments:You must be logged in to view attached files. January 29, 2018 at 6:05 pm #30488 Jim ChandlerParticipant Perhaps this is a calyx. Good eye to pick up this subtle detail. However it is too indistinct to be sure it is a calyx. Check out some images of better preserved calyx at:https://www.google.com/search?q=crinoid+calyx&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi43eLPlP7YAhXHg-AKHX30CVoQ_AUICigB&biw=1280&bih=630#imgrc=_ Jim January 30, 2018 at 12:23 pm #30489 Inkar ArzahParticipant @jim-chandler Thanks Author Posts Viewing 7 posts - 1 through 7 (of 7 total) You must be logged in to reply to this topic.