Saturday, June 20, 2020
Indonesian Bivalve Fossil
Recently, my cousin returned from a trip where he acquired some bivalve fossils at a Colorado rock shop. He was told they were from Indonesia. After doing some research on the Internet of other dealers selling fossils like this, the name being used is either Paphia sp. or Striarca cheribonensis. The locality might be either Solo River or Sangrian Done, Jawa Tengah, Java, Indonesia. Fossil dates to the Pliocene Epoch.
Friday, June 19, 2020
Florissant Formation Snout Beetle Fossil
This image shows an insect fossil found in the Florissant Formation of Teller County, Colorado, USA. It dates to the Eocene Epoch of the Paleogene Period. Thanks to Kenny for the matrix plate. I split the plate and then used the microscope find it. The fossil split in two so there is an image of each side. The image below is of the plate before it was split (about 10 cm wide). The actual fossil is about 3.54 mm long. My original guess and posting was this fossil was some sort of seed pod or flower bud. Afterwards, my cousin Kenny identified it as a snout beetle or weevil of the Order Coleoptera, Family Curculionidae.
Labels:
beetle,
colorado,
eocene,
florissant,
insect,
microscope,
weevil
Monday, June 15, 2020
Almost Intact Bumastus niagarensis Trilobite Fossil
When I was active hunting the Waldron Shale for its treasured fossils, one I hoped to find was an intact Bumastus niagarensis (Whitfield, 1879) trilobite. This image is of a mostly intact trilobite (60-70%) and the pygidium on another one. As far as I know, no fully intact Bumastus trilobites have been found in the Waldron Shale of Indiana. Looking at this one, it was probably intact at the quarry and was damaged when dug up or moved so it gives me hope in the future a full one will be found.
It dates to the Silurian Period (Wenlock Epoch, Sheinwoodian to Homerian Stages). My cousin Kenny found it in Clark County, Indiana, USA. Very nice find, so close to being a complete specimen.
Species was originally named by R. P. (Robert Parr) Whitfield (1828-1910) as Illaenus niagarensis in the Annual Report of Geological Survey of Wisconsin for 1879, 1880 page 68.
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