Wes Note: OK, it's not a 'reptile', but it still may be of modest interest I hope.

EDMONTON SUN (Alberta) 23 June 05 Alberta Fossil's Fangs A First
(CP): Alberta paleontologists have dug up evidence suggesting a venomous, shrew-like creature that existed 60 million years ago latched onto its prehistoric prey with snake-like fangs.
It's the first time that what appears to be a "venom delivery system" has been found in an extinct mammal, say researchers at the University of Alberta.
"There are a few living mammals that have a venom apparatus but this is the first time that one has been found in the fossil record," said Prof. Richard Fox.
The animal is called Bisonalveus browni. Its existence was first documented almost 50 years ago after fossil fragments were found in Wyoming. They've also been found in Montana and Alberta.
But until now no one had identified evidence of snake-like poison fangs in this or any other extinct mammal. That's because no one else has found any front teeth, said Fox and his research team.
They have the most complete known fossil specimen of B. browni, part of a skull and lower jaw. It was discovered along the Blindman River near Red Deer.
The findings are reported in today's edition of the prestigious international science journal Nature.
Fox estimates from the skull size that little B. browni's body was about eight to 10 centimetres long with a tail about two-thirds the length of its body. It would have looked more like a shrew, which has a longer nose, than a mouse.
It probably dined mostly on prehistoric insects and maybe some worms. But it's possible the menu could have included lizards and small mammals.
Venomous mammals are very rare in the animal kingdom, but there are three in existence today.
Of living or extinct mammals, 60-million-year-old B. browni's fangs are the most similar to the poison fangs in some snakes.
"In these particular snakes the poison fangs are grooved down the front or anterior side, just as is this canine tooth in Bisonalveus," Fox said.
Scientists have wondered why more predatory mammals didn't evolve with fangs and venom the way many reptiles have.

CBC (Toronto, Ontario) 22 June 05 Venomous mammal find a first: Alberta paleontologist
Photo at URL below
A small, fossilized mammal had what appears to be poisonous fangs that allowed it to bite like a snake – the first such find in an extinct mammal, Canadian researchers say.
Vertebrate paleontologist Richard Fox of the University of Alberta in Edmonton found the specimen in 1991. Now Fox and his research team say the extinct, mouse-sized creature was built to deliver venom.
The world is home to few living mammals with venom delivery systems: the duck-billed platypus, the Caribbean solenodon, and a few rat-like shrews.
Scientists concluded that mammals long ago lost the ability to release venom to defend themselves or find food, given how few mammalian species still use the strategy.
The 60-million-year-old fossil of the mouse-sized creature, called Bisonalveus browni, has a deep groove in its upper canine. The length of the tooth may have allowed it to act like a piercing fang, like those found in modern venomous snakes.
"Our discoveries therefore show that mammals have been much more flexible in the evolution of [venom delivery systems] than previously believed," the team concluded in Thursday's issue of the journal Nature.
The fossil teeth were found at two sites in the Paskapoo Formation of central Alberta, an area rich in well-preserved mammalian fossils.
The study shows how even after scientists work on a research project for years, uncovering one small piece of information can lead to new discoveries, Fox said.
The Natural Sciences and Engineering Research Council of Canada and the University of Alberta sponsored the research.
http://www.cbc.ca/story/science/national/2005/06/22/venom-mammal050622.html?ref=rss