A square-serif type is called a slab serif or Egyptian, but when the serif is bracketed (the curved linking stroke between the stem and the square serif), the type is sometimes referred to as a Clarendon. Originated in England by the Fann St. Foundry in 1845, these types are named for the Clarendon Press in Oxford. Clarendon was originally designed as a heavier complement to ordinary serif designs, and is used frequently in dictionaries and headline applications.
‘Clarendon’ is a trademark of Linotype Corp. registered in the U.S. Patent and Trademark Office and may be registered in certain other jurisdictions in the name of Linotype Corp. or its licensee Linotype GmbH.