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MarcoSr posted a topic in General Fossil DiscussionTo understand and id fossil shark teeth it really helps if you are familiar with extant shark teeth. I’ve been taking more pictures of my extant shark jaws. This post contains pictures of an extant Heterodontus zebra (Zebra Bullhead Shark) taxidermy specimen and an additional jaw. Links to my previous TFF posts on extant shark jaws can be found at the below TFF link. My Extant Shark Jaw Collection Below is a 23 inch long taxidermy specimen. Adult specimens can reach 122 cm in length. Adult body colors can vary but usually range from white to cream with black or dark brown zebra-like narrow vertical saddles and bands. Juveniles have red-brown bands: This shark is a male based upon the claspers shown in the below picture: Pictures of the dorsal fin spines on the first (note this spine is damaged at the tip) and second dorsal fins: The jaw: The placoid scales are more spread out on the dorsal side (back or upper side) and much denser on the ventral side (belly or lower side) of the shark. The shape of the placoid scales varies depending on the body area of the shark. Placoid scales on the head between the shark’s eyes from a dark band and a light area. Placoid scales on the dorsal side of a pectoral fin: Placoid scales from the ventral side near the jaw: Continued in next reply Marco Sr.
Hi everyone! In November I will be doing a presentation for my local club on sharks. The title will be "Sharks: The Living Fossil ". I would like to get my hands on a shark jaw to use for the presentation for a visual aid. I could either do a trade or purchase. Or if there is a kind soul out there who may possibly be willing to loan one to me? I would highly appreciate any and all offers. Thanks in advance Darktooth Dave
Hey, I bought this jaw quite a while ago now. I bought it from eBay and it was titled as just 'Shark Jaw'. I messaged the seller after i bought it and he said he doesn't know what it is but he thinks it could be a Whitecap Reef Shark jaw. I took his word for it and assumed that it what it is. But recently i've been paying more attention to identification of Shark Jaws and I'm having my doubts on whether this is actually a Whitetip reef shark. It measures around 10" wide. What do you think it could be? I've attached a photo of the Jaw itself and two additional photos of the top row of teeth and bottom row of teeth. (obviously the top row is the triangular shaped teeth) Any thoughts on this are greatly welcomed.