Catalog Number: CG-0107

This 15th specimen of Petalodus ohioensis was lying right out in the open today. The odd part was its placement. Last Fall I had pulled a piece of limestone to shore and was attempting to split it. I cleaved off a few small pieces. However, it was getting late and I needed to get back. I must have split off a piece with a tooth on it. Either I didn’t notice it, or I thought it was a mollusk shell.

Today I went out, despite it being quite cold. The water is running high currently, so I didn’t spend much time in the stream bed. I collected this tooth and a few other specimens and brought them back for cataloging and examination. I still need to add a scale to this, so more to come.

Focus stacked view through the microscope of Petalodus ohioensis XV.
Metric Measurements for CG-0107

More Petalodus Specimens

Catalog IDSpecimen NameCrown HeightCrown Width
CG-0015Petalodus I6mm23mm
CG-0016Petalodus II9.5mm24mm*
CG-0029Petalodus III8mm28mm*
CG-0027Petalodus IV10.5mm**
CG-0034Petalodus V14mm27mm*
CG-0038Petalodus VI5.5mm*****
CG-0045Petalodus VII10mm25mm
CG-0047Petalodus VIII13mm31mm
CG-0048Petalodus IX******
CG-0055Petalodus X11mm†28mm
CG-0058Petalodus XI8mm†27mm
CG-0070Petalodus XII******
CG-0087Petalodus XIII9mm23mm
CG-0102Petalodus XIVComing SoonComing Soon
CG-0107Petalodus XVComing SoonComing Soon
Current specimens found and metric measurements. Crown height measured from start of root on lingual side. This includes a dark band that was originally covered by the distal crown tongue.
* – Measured based on symmetry. One side broken/obscured.
** – Unable to measure, both sides broken.
*** – From top of distal crown tongue.
**** – Unable to measure, crown broken.
† – Measured from labial side.