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  1. I_gotta_rock

    Fluorescent Petrified Wood

    From the album: Fluorescent Petrified Wood

    Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

    © copyright 2021 Heather JM Siple

  2. I_gotta_rock

    Cretaceous Micro Brachiopod

    This one is bugging me!!!! I know this is a brachiopod. I found it at the Reedy Point spoils along the C and D Canal in Delaware. It is 1cm in diameter. I have found two of them in the sand but none of them in the books. I have looked in Weller 1907, Wade 1926, Stephenson 1923, Richards 1958 and 64, and Lauginger 1988. I asked the folks at the repository for the Monmouth Amateur Paleontological Society. No dice. Look familiar to anyone?
  3. I_gotta_rock

    Boletechinus Sea Urchin

    This specimen comes from the 1980 dredge spoils of the C and D Canal. The type specimen for this species comes from the Navesink Formation exposure of the same canal, not far away. Known by locals, it was not actually described until 1986. Although not the most common of species at this locality, and almost unknown outside of Delaware, these miniscule urchins were nonetheless plentiful at the Reedy Point spoils. Recent excavation for barrow removed most of the sand where my specimen was found.
  4. I_gotta_rock

    Sabre-Toothed Herring Tooth

    Vertebrate material of any kind is extremely rare at this locality. However, this is the most common vertebrate represented at Reedy Point. Found while sifting through micro matrix collected from an especially prolific, recently exposed spot that will soon be removed by bulldozers.
  5. I_gotta_rock

    Glycymeris Clam Internal Mold

    Glycymeris clams have ridges along the inside edge of the valves that extend past the cardinal area. Internal molds tend to include these teeth, making them very distinctive. As of the time this was posted, this was the only member of the genus listed in the Paleobio Database for the Cretaceous period and it is only listed as being found in NJ. However, Stuart Weller (1907) and Horace G Richards (1958) not only include them in the C and D Canal zone, but identify three different species for the region. This one is the most common and the only one THEY found outside of NJ. This is most likely from the Mount Laurel formation. It was found among the Mount Laurel index fossils. However, Navesink Formation fossils are also found in pockets in this spoils area, so the possibility that this came from the Navesink and got mixed up with the Mount Laurel material from constant human activity cannot be ruled out.
  6. I_gotta_rock

    Gasatropod

    As battered as this is, it is an unusually well-preserved specimen for this locality. Although there are brachiopods and bivalves that preserved as calcium carbonate at this locatlity, most gastropods in the Cretaceous of Delaware are either steinkerns or are preserved as battered phosphate with phosphate in-fill. Gouging appears to have occurred after fossilization since the matrix does not completely fill the gouges. Most shell predation at Reedy Point came from clionia sponges and boring clams. This resembles neither. This was found in loose sand from dredge spoils.
  7. I_gotta_rock

    Micro Scallop

    The treasure of the Reedy Point Spoils is in the micros! This is one of over 100 micros I collected in one day just surface collecting after the spoils area was freshly cleared of vegetation -- and freshly cleared of much of the remaining matrix. Of all of those micro fossils, this is the only one of this species and very possibly the only one I have found in 16 years of collecting at that site. The Reedy Point Spoils is a 220+ acre dredge deposit from the Chesapeake and Delaware Canal. The matrix is a combination of material from the Mt Laurel and Navesink Formations, which are not exposed in Delaware, but are on the surface in their namesake towns in NJ.
  8. Shark255

    Iron Hill Museum Fossils

    I recently took a trip to the Iron Hill Museum in Newark, Delaware. (Which has amazing displays by the way. Its small, but fascinating.) There, I bought a small bag of about 10 fossils. I knew what most of them were, but there are a few I am unsure of what they actually are. I was wondering if anyone on the Forum could help me. All I know is that all of the Fossils were found in either Delaware, Maryland, New Jersey, or Pennsylvania. 1. This one I was told that this is some kind of bone fragment. 2. This is also another bone fragment. 3. I think this is a bone fragment. 4. I know this is a vertebra but I am not sure what kind. I am pretty sure it is marine. 5. This is some kind of tooth. 6. No idea.
  9. I took advantage of the day off yesterday for Veterans Day to attempt to beat the rain with a quick stop at the Reedy Point spoils piles (Late Cretaceous; Mt. Laurel Formation) from the C&D Canal in Delaware. Unfortunately neither of those things came true - it began to rain about halfway through my visit and I collected there much longer than I expected. This was my first ever visit to the spoils piles since I have found very similar fossils before in Big Brook, which is a much closer drive for me. I didn't quite know what to expect when I arrived. What I thought were going to be large piles of dredge from the bottom of the canal turned out to be large fields covered in a layer of sandy gravel. Hence why my visit lasted much longer than I expected. For the good part of the morning and early afternoon, I scoured the area, mostly surface collecting with a little bit of sifting. I didn't find anything extraordinary, but the sheer size of the bivalve shells there was enough to make it a worthwhile trip. Notably I only ever found mostly complete shells - these bivalves must have been massive when alive! There were quite a few fossils easily found just lying on the ground Here are my finds: Gastropod Steinkern Pieces I found two types of bryozoan on shell pieces I was struck by the extent of boring by sponges (Cliona cretacica) on this shell I thought these worm tubes (Serpula implicata) were pretty cool, including one that extends from one side of the shell to the other side The largest belemnite (Belemnitella americana) I found was about 7.2 cm, which is large but not as big as the 11.2 cm belemnite I found many years ago in Big Brook Similar to the bivalves, some of the belemnites also exhibited traces of boring sponges
  10. I_gotta_rock

    Tiny Sea Urchin

    From the album: Delaware Fossils

    So sweet! This is a very rare Cretaceous echinoid (sea urchin), Boletechinus. They are typically no more than a couple mm in diameter. This one is shown next to a pencil eraser. Most of the ones in the Smithsonian's collection come from sand and silt removed for the creation and maintenance of a canal, which exposed fossils well below the surface. This one comes from New Castle County, Delaware.
  11. I_gotta_rock

    Nautiloid

    From the album: Delaware Fossils

    Eutrephoceras sp. Cretaceous C and D Canal Delaware City, Delaware Mt Laurel Fm.
  12. I_gotta_rock

    Shell Made its Own Pedistal

    From the album: Delaware Fossils

    A Gryphea vomer bivalve made itself at home atop the internal mold of a tiny Baculites ovatus cephalopod. The whole thing is about 3 cm tall. Found in the Cretaceous spoils sands of the C&D Canal, Delaware
  13. I_gotta_rock

    Fossils in pebble

    From the album: Delaware Fossils

    Fossil sea life embedded in beach pebble, possibly a cross-section of Belemnites americans on the right end, among other things. Found on the beach at Cape Henlopen, Delaware. Someone has suggested Paleozoic era based on the age of pebbles further north at Bowers Beach.

    © Heather J M Siple

  14. I_gotta_rock

    Rugose Coral Cross-Section

    From the album: Delaware Fossils

    Rugose Coral Paleozoic Delaware River, New Castle, Delaware
  15. I_gotta_rock

    Shark Tooth

    From the album: Delaware Fossils

    Odontaspis sp Cretaceous C and D Canal Delaware City, Delaware Mt Laurel Fm.
  16. After finding that dredging had occurred at the C&D Canal earlier this year, I decided to take two trips out to explore the area and collect some of my favorite fossils - Belemnitella americana! I had written the location off in my prior scouts for hunting spots as most resources stated that the site was picked clean after the prior dredging. Thankfully, the renewed piles of spoils were bountiful and I brought back a haul of about 300+ Belemnites including a monster 10cm one and many various bivalves such as oyster and scallops. Not too bad for a noob hunter!
  17. Found on the Delaware coast, in the surf. The segmented columns are irregular, waving independently as opposed to a regular pattern as in a hard coral. They seem to come out of a central stem like a crinoid, but there are so many tendrils, I am doubting that guess. My 7 yo son found it and is dying to learn more about it, so a genus would help a lot. Thanks! Paul
  18. I_gotta_rock

    Why I Love Blacklight!

    Whenever I bring home a new batch of fossils, I pull out my UV rock lamp. Why? Some fossils glow in the dark, but not in a uniform way. Variations in the mineral composition make for a variety of colors, even when the specimen seems fairly uniform in color in daylight. This can make small, hidden details really stand out. Case in point: This afternoon I was putting away some petrified wood I'd collected awhile back. I pulled out my black light to examine them because some of the wood from this site shows a rainbow of color under UV. This one particular piece was mostly orange under UV, though in camera the hues look different. What really got my attention, however, were a few really vibrant spots on one side. Insect traces! The petrified wood chip is only about 8 cm long. Even with a magnifier, some of the small details are hard to spot. I never would have spotted them in daylight, but they were super bright with the UV. Another box I was sorting through this week contained impressions of brachiopods and trilobites in plain, white limestone. It can be hard to see the contours in the matrix, but they show up much differently under the UV. Finally, UV light can be used to identify fossil mollusks whose patterns have bleached away. About 60% of fossil shells fluoresce and some species have been described based on the residual patterns made visible under ultraviolet light. Note: To photograph these, I used a Convoy UV LED flashlight. I set my camera on a tripod for a 4 second exposure at f/22, with ISO set to 1600. I had my DSLR's white balance set for daylight.
  19. I_gotta_rock

    Fluorescent Silicified Cypress Wood

    From the album: Fluorescent Petrified Wood

    One of Delaware's many mysteries is the petrified wood found near Odessa and Smyrna. The general consensus is that is cypress wood of some kind and it was buried under Pleistocene sediments. However, the origin of the wood and the age have yet to be figured out. Some say Miocene. Others say as old as Cretaceous. There are no other co-occurring fossils in the deposit to give any clues. The photo on the right was taken using a 395 nm UV lamp.
  20. Sean976

    C & D canal

    I will be heading through the area this upcoming weekend and was wondering if there are any good spots to still check out there near the Reedy Point Bridge or anywhere along the canal up to the Route 13 bridge. Thanks!
  21. Salubrity

    Shark Tooth Identification

    Hello! I recently found this well-worn shark’s tooth on a beach in Rehoboth Beach, Delaware. The serrated edges of the tooth are worn down but still visible, although it’s difficult to observe in the photos. I was wondering if anyone has any thoughts as to what species the tooth could possibly belong to? Thank you so much! Take care-
  22. I_gotta_rock

    Petrified Wood Under UV

    From the album: Fluorescent Petrified Wood

    Cypress Wood Family Cupressaceae Miocene New Castle County, Delaware
  23. I_gotta_rock

    Petrified Wood Under UV

    From the album: Fluorescent Petrified Wood

    Cypress Wood Family Cupressaceae Miocene New Castle County, Delaware
  24. I_gotta_rock

    Petrified Wood Under UV

    From the album: Fluorescent Petrified Wood

    Cypress Wood Family Cupressaceae Miocene New Castle County, Delaware
  25. I_gotta_rock

    Petrified Wood Under UV

    From the album: Fluorescent Petrified Wood

    Cypress Wood Family Cupressaceae Miocene New Castle County, Delaware
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