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Showing results for tags 'actinopteria bella'.
I have always enjoyed drawing, but it is only in the last 2 years or so that I started working on scientific illustration. I have done many living creatures, but this is my first fully rendered fossil. I was hoping that you guys could give me some suggestions for improvements. I did some reconstruction by comparing my main subject with other specimens. It is an Actinopteria bella, rendered using graphite pencils and tortillons, on smooth 2 ply Bristol paper. Thoughts? @Kane, @Ludwigia, @Top Trilo
Actinopteria bella is a species of bivalve found in the Leighton/Pembroke Fm, and first described by Henry S. Williams. It is differentiated from A. fornicata by less convexity in its shell and a wider beak. It is differentiated from A. dispar by its shorter shell. The above pictures are of the left valve. A poorly preserved original or cast of the shell exterior is on the left side. Some of the exterior of the shell may be missing since the exterior ribs have less than normal height. The right photo is an exterior impression or mold. Some of the shell may be present on
This is another fossil from the Leighton Fm, Maine. It is an Actinopteria bella, a bivalve that was first described at this formation (here, https://repository.si.edu/bitstream/handle/10088/14399/1/USNMP-45_1985_1913.pdf). I have had multiple specimens of it, but this is the first one that came out in one piece. The pictures below are of the internal and external mold (top to bottom).