Small Tail Shark Jaw

I don't recall coming across this species before.  Excellent teeth.

The smalltail shark (Carcharhinus porosus) is a lesser-known species of requiem shark found in coastal waters of the western Atlantic Ocean, primarily from the southern United States (Florida) down to Brazil. It is commonly seen in shallow, muddy environments, often near estuaries and river mouths. While it has a broad range, it is not frequently encountered, making it an uncommon species compared to other coastal sharks.

Biology & Size

The smalltail shark is a relatively small species, typically reaching 3 to 4 feet (90 to 120 cm) in length, though some individuals can grow slightly larger. It has a slender body with a short, rounded snout and a distinctive small second dorsal fin. Its coloration is usually grayish-brown on top with a lighter underside, which helps it blend into its environment.

Like many requiem sharks, the smalltail shark is viviparous, meaning it gives birth to live young rather than laying eggs. Litters typically contain 2 to 9 pups, with a gestation period of around one year.

Diet & Behavior

Smalltail sharks primarily feed on small fish, crustaceans, and cephalopods, making them opportunistic predators in their ecosystem. They are generally harmless to humans, preferring to stay in shallow coastal waters.

Conservation & Rarity

While this species has a wide distribution, its populations are declining due to overfishing. It is often caught as bycatch in commercial fisheries and is sought after for its fins and meat in some regions. Because of this, it is currently listed as Vulnerable on the IUCN Red List.

A Rare Collectible

The smalltail shark is not as commonly found in the fossil or specimen trade, making its jaw an interesting and hard-to-find piece for collectors. Its compact size and distinct tooth structure make it a unique addition to any shark jaw collection.