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News
The Rostrum 
MGS News Archives
Fall 1999: "Muddy Creek" book now available!
This book is of multiple interest to MGS members: not only
is it a great
identification guide for Eocene fauna and flora, but the specimens were
collected primarily by
members of our club. Editors Dr. Robert Weems and Gary Grimsley are both
MGS members.
The official title of the book is Publication 152: Early Eocene
Vertebrates and Plants from
the Fisher/Sullivan Site (Nanjemoy Formation) Stafford County,
Virginia. It is published
by the Virginia Division of Mineral Resources, and consists of 159 pages
divided into 8
chapters. There are more than 2 dozen photographic plates plus many other
drawings and
charts. Chapters and authors are:
1- Intro, geology, paleogeography, Dr. R. Weems and G. Grimsley.
2/3- Sharks, Rays, Dr. B. W. Kent
4/5- Fish, Reptiles, Dr. R. Weems
6- Birds, S. L. Olsson
7- Mammals, K. D. Rose
8- Fruit and Seeds, B. H. Tiffney
Although we will try to have copies at
each meeting, Publication 152 can be ordered directly from:
Division of Mineral Resources
PO Box 3667
Charlottesville, VA 22903
attn: Publication Sales Office
Price is $13.00 (VA residents 13.58), and includes shipping. Make check
payable to
"Treasurer of Virginia" or call 804-951-6341 to use a credit
card.
October 1999: A Texas Team We Support
MGS hosted five members of the Dallas Paleontological Society on the
weekend of October
8-10. They were given a behind-the-scenes tour at the Smithsonian Museum
of Natural
History by Bob Purdy, and visited several Chesapeake Bay collecting sites
during their stay.
Rick Smith notes that they "were quite pleased with the variety and
quality of their finds and
said they had a great weekend." He also notes that "several members of MGS
need to be
thanked for making the visit by the Dallas group a success. In addition
to Bob Purdy at the
Smithsonian, Mike Folmer, Debbie Burdette, and Dick Grier, Jr. were
instrumental in making
this interaction between our two societies a reality."
Photographs of our visitors' trip can be
seen at the DPS
website.
Shark Week 1999: |
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The Discovery Channel and
their
local store will be featuring MGS member George Powell August 8 to 15 as
part of their
regular Shark Week series. Early word is that George will be
likewise involved
with Shark Week 2000. Check back for dates and details.
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Jan 26 1999:
"Turning Dinosaur Theory on Its Paleobiological Tail" (New
York Times on the Web).
The study of a fossil baby dinosaur named Scipionyx
samniticus, found north of
Naples, Italy in 1983, is casting doubt as to whether dinosaurs were
warmblooded and
ancestors of birds. This fossil has the best preserved fossil organs of
any found to date.
Nov 1998: Enormous Discovery Reported
Sauropod dinosaur eggs and embryos encompassing about a
square mile were found in Patagonia, Argentina (link to "Project Patagonia" - Los
Angeles Museum) by Luis Chiappe and
others. Some had the skin preserved and scales still visible. These eggs
represent sauropods that grew 40-50 feet long.
Opalized Plesiosaur
A treasure from White Cliffs, N.S.W., Australia: an 8.5
foot long opalized
skeleton of a plesiosaur known as Plessy Neck. It's estimated to have
lived over
100,000,000 years ago in the Dinosaur Era. Currently this find is not on
public display. It was
too expensive for Sydney Museum to afford.
White Cliffs is about 188 miles from Broken Hill and about 65 miles north
of Wilcannia
(the road from Wilcannia is paved about a third of the way).
White Cliffs is the oldest and largest opal field that was discovered back
on the late 1880s
by a party of kangaroo shooters. Other fossil finds include an opalized
belemnite and
petrified wood.
White Cliffs Tourist Guide, tel. (80) 91
6607.
White Cliffs General Store & Tourist
Information, tel. (80) 91 6611.
White Cliffs Dugout Hotel, tel (80) 91
6677.
Outback Treasures offers fossils, precious
and semiprecious gems, cut and polished opals from local mines, jewelry
and aboriginal art, etc. (618) 80 91 6634.
--Rock & Gem Magazine,
October 1997, p.
20.
Muddy Creek:
Make sure you have permission from the land owner before you dig at Muddy
Creek. The local sheriff is patrolling the site regularly. Collectors
without the proper permission should stay away. This is a research site so
please do not ruin it for the people contributing specimens. A
paper on this site and its specimens is currently in progress for a near
future publication.
Pfiesteria Archives:
Collectors on the Chesapeake Bay and it's tributaries should be aware of
the growing Pfiesteria microbe. This microbe is showing up in more Eastern
shore rivers (Pocomoke, Kings Creek and points north), and it seems to be
just a matter of time before the Potomac and other rivers on the western
shore will be affected. Since contact with the water is the spreading
agent, collectors who wade without boots or a wet suit and use no gloves,
should watch for the symptoms:
- Lesions
- Loss of memory
- Nausea
Historical data:
1991 : The first state
to report this problem was North Carolina.
Per Matt Hemby, Staff
Writer for News & Observer in "Experts Contend Neuse's
Fish Kill Worst in State": This dinoflagellate was discovered in the
Pamlico River in 1991. It's the "toxic algae" or "killer
algae." Pfiesteria could survive in water temperatures as low as 55
degrees.
The Division of
Epidemiology at DEHNR had reports of working with pfiesteria with eye
irritation and throat irritation and neurological problems such as memory
loss and irritability which according to Dr. Burkholder are symptoms
equitable to someone having Alzheimer's disease.
As reported earlier in
"Hippocrates" (October 1995, by Deborah Franklin), Dr. Howard
Glasgow, a researcher at North Carolina State University had been exposed
to the organism. A chemical agent excreted by Pfiesteria caused symptoms
ranging though forgetfulness, rages, paranoia, sores; symptoms of
neurological injury, including abnormal reflexes, profuse sweating on one
side of his body; and physiological changes such as erratic heart beat and
blood pressure, high enzyme count in his liver, and high levels of
phosphates in his urine (all signs of the bodies response to neurotoxins).
Once Dr. Glasgow removed himself from exposure to the organism, he slowly
returned to normal health.
Oct 25 1995: The
News & Observer reports: Toxic algae proved deadly in the Neuse
River at Minnesott Beach. This toxic dinoflagellate called pfiesteria had
just previously been found in New Bern, NC and has travelled as far down
as Oriental, NC. Samples at Minnesott Beach measured 2,500 cells per
milliliter; eight times higher than what's lethal for fish. Oriental has
measured 300 cells per milliliter.
June 1997: The Pocomoke
River, VA reports outbreak of Pfiesteria.
Sept 17 1997: Florida
reported an outbreak of Pfiesteria in the St. John's River from
Jacksonville down to Lake Okeechobee
Sept 18 1997: The Neuse
River, NC remains a problem.
See additional information on this topic
at the following sites (updated Jan 2000):
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