Caryocorbula martinae (Whitney, 1952)

Remarks

• Collector:    Keith Minor

• Formation:  Trinity Group, Glen Rose Limestone

• Location:     Hood County, TX

• You need a magnifying glass to see these things!

• We zoomed in on one.  It is ~2.8 mm in length.

• The highest magnification ~ 28 X.

• The genus Caryocorbula is an Eocene genus, so we'll keep an eye out for any name revisions in the literature.

General Info

Synonyms (older names and misidentifications in the literature)

• 1893 Leda? harveyi Hill

• 1920 "Corbula" harveyi (Hill); Hill

• 1952 Corbula martinae Whitney

• 1982 Corbula martinae Whitney; Offeman et al.

• ? Caryocorbula martinae (Whitney)

Stratigraphic Occurrence

• Trinity Group, Glen Rose Formation of North and Central Texas

Age

• Caryocorbula martinae (Whitney) occurs in both the upper and lower Glen Rose Limestone and forms an important marker bed in the Douvilleiceras mammilatum (Schlötheim) zone, Early Albian Stage (~108 mya).

Geographic Occurrence (not an all-inclusive list)

• Blanco County, TX

• Comal County, TX

• Hays County, TX

• Hood County, TX

• Travis County, TX

Remarks

         For identification and descriptions, see:

• Whitney, M. I. 1952. Some Zone Marker Fossils of the Glen Rose Formation of Central Texas. Journal of Paleontology 26 (1), 65–73.