gastropod

August 16, 2008 - Cretaceous - Dallas and Perry Counties, Alabama

Day 1 Friday         Day 2 Saturday         Day 3 Sunday

A
weekend trip to the Cretaceous chalk gullies of Dallas County Alabama and a
creek in Perry county turned up numerous fossils.  Ancient creatures,
including shark, turtle, mosasaur, ptychodus, fish, clam, and ammonite
were found during the three day weekend trip.

DAY 2 - SATURDAY

Finally, after a night of gentle rain, around 7am Saturday morning the rain quit, and James
Lamb set off to find another site that the large group could access
without damage to themselves or the fossils.  After tracking down
landowners for at least an hour, we were granted permission to collect
in a creek in Perry county.  And what a nice creek!  Along with the
adventure of exploring a creek we had never visited, climbing over
strainers and up and down steep bluffs, everyone found numerous shark
teeth, ptychodus teeth, gastropods, and even a small piece of belemnite
with the iridescent sheen still visible.

After leaving the
creek, we went back to camp, and once we arrived, we noticed the cows
were quite interested in camp and the strange large metal boxes sitting
all around their pasture.  One was carefully examining a particular red
car!  After resting and filling our bellies, we decided to check out a
gully near camp, to see if it was dry enough to collect.  Fortunately
it was, and a number of nice specimens were found, including whole
shells, mosasaur vertebra, turtle shell, fish vertebra, and worm tubes.

That night at camp Claire took numerous pictures of spider webs, and we listened to everyone's tall tales and tales of past field trips. 

(photos courtesy Claire Smith and Vicki Lais)

BPS members

The gang met on Saturday morning for a day of fossil collecting.

Hanging out with Greg

The "put-in" at the first creek, where Greg decided to hang out while we searched for a productive site.

navigating the limb pile

As everyone has gone on ahead, Martha is last in line, and carefully climbs across the strainer.

climbing out of creek

Now we're told to cross over to another part of the creek with better collecting. Your choice - up the steep bluff, or back through the strainer and hike down a different trail.

Martha excited

Ta-da! Everyone made it safely through the strainer.

climbing down the hill

Once arriving at the new creek location, we had to climb down an even steeper bank.

Don

Don

Screening for shark teeth in the creek

Screening for shark teeth in the creek.

Screening for shark teeth

Screening for shark teeth.

Screening for shark teeth

Screening for shark teeth.

screening for teeth

Screening the gravel in the creek bottom for shark and other teeth.

shark teeth
shark teeth

Scapanorhynchus shark teeth found by screening gravel from the creek.

Shark teeth and belemnite
shark teeth, belemnite

Shark teeth - Cretolamna in upper left, Scapanorhynchus in lower left, ptychodus tooth in middle, turritella gastropod, and belemnite found in the creek.

Late afternoon collecting in the gully

After a couple of hours back at camp eating, resting, and drying off, we headed out for a late afternoon collecting trip in a nearby gully.

Vertebra
vertebra

Mosasaur tail vertebra.

Echinoid fragment, fish vertebra, worm tube
fish vertebra, worm tube

Echinoid or crab fragment, fish vertebra, Hamulus worm tube.

Mosasaur vertebra
mosasaur vertebra

Clidastes mosasaur vertebra.

Mosasaur vertebra
mosasaur vertebra

Clidastes mosasaur vertebra.

Several shark vertebra
shark vertebra

Several shark vertebra.

Fossil shell
shell

Fossil Paranomia shell.

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