billingsellacean
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
21
Scrabble Score
16
Letters
2
Syllables
9
Unique Chars
Meaning
noun
Any brachiopod of the superfamily Billingsellacea.
Example Sentences
- "The Obolellida and the basic articulate stock, the billingsellaceans, appear later in the lower Cambrian. The orthide billingsellaceans with their strophic hinge lines, deltidiodont dentition and invariably calcareous shells, comprise two families which, although morphologically similar, have a fundamentally different style of shell secretion, reflected in their various descendants."