Other possibilities:

http://dictionary.reverso.net/italian-english/lapidario
concluded succinctly, tersely

http://www.dictionary.net/lapidary
Of or pertaining to monumental inscriptions; as, lapidary adulation.
Lapidary style, that style which is proper for monumental and other inscriptions; terse; sententious.

HTH!

En este caso, "lapidario" viene de "lapidación" que a su vez deriva de lápida (piedra).
Se utiliza cuando "matas" (metafóricamente) al otro con un comentario

--------------------------------------------------
Note added at 7 mins (2007-10-08 21:41:50 GMT)
--------------------------------------------------

Supongo que "concluyó" se refiere a finalizar/terminar un texto periodístico. Tb puede ser que se refiera a "conclusión". Falta contexto

--------------------------------------------------
Note added at 12 mins (2007-10-08 21:46:54 GMT)
--------------------------------------------------

ejemplos de su uso en español:
Enseguida viene el comentario lapidario: "Lo que se ve —dice—, es el precursor del nazismo, el alemán entusiasmado con el gobierno". ...
mackinlays.blogspot.com/2007/02/frenos-contrapesos_
... las autoridades que están coludidas en esto se encuentran en todos los niveles –sostiene el periodista en un nuevo comentario lapidario–. ...
www.larevista.com.mx/ed794/-newsite/individual pages/column...

--------------------------------------------------
Note added at 39 mins (2007-10-08 22:14:04 GMT)
--------------------------------------------------

El miércoles 22 de noviembre, el excelente y respetado periodista y columnista de Radio Cadena 3 de Córdoba, Miguel Clariá, hizo un comentario lapidario en ...
www.mitosyfraudes.org/Polit/Ineptos.html -
No hay "operación comunicacional", sólo mal periodismo. 18 de Marzo de 2001. Ni siquiera el lapidario informe de Human Rights Watch, ...
www.abe.cl/edi20010318.html
Lapidario reportaje del Financial Times causa escozor al interior del oficialismo ... en el periódico británico Financial Times, la periodista Jude Webber, ...
www.diarioeldia.cl/detalle.asp?id=34854&idsec=12
Esta periodista logró viajar a Cuba y visitar varios centros médicos de La ... Destaca este lapidario reportaje que además viene a mostrar claramente que ...
www.gentiuno.com/articulo.asp?articulo=3074
Una de las críticas más duras -y que más revuelo causó en el loco mundo de la Internet- es la ralizada ayer en el Washigton Post por George Will. Este columnista conservador dijo del presidente Bush:


"Él no tiene ni la inclinación ni la habilidad para hacer sofisticados jucios sobre aproximacines competentes a la hora de dar sentido a la Constitución. Pocos presidentes adquieren esas habilidades en el curso de sus carreras pre-presidenciales, y éste presidente en particular no está inclinado a esas reflexiones".
Lapidario.
http://iusandlaw.blogspot.com/2005/10/kill-harriet.html

FYI, there is an equivalent term in English:

lapidary
(of language) engraved on or suitable for engraving on stone and therefore elegant and concise : a lapidary statement.

I kind of made up the adverb form "lapidarily"; I don't find it in any dictionaries, but it does show up on the web, even in academic contexts:

In his influential Galileo Studies, Alexandre Koyré lapidarily affirmed:. 3. The law of falling bodies—the first law of classical physics—was formulated by ...

As Professor Hiromoto from Hitotsubashi University puts it lapidarily, "Good-bye to standard costs."

described lapidarily by Henry Drucker, that much-missed Scottish Labour stalwart and effective founding-father of Scottish Affairs, as 'evil'

the answer to Question 9 must necessarily and lapidarily be. something like "in nothing" - and with good reason. ...


It might work for you if you're into being unconventional :)

--------------------------------------------------
Note added at 42 mins (2007-10-08 22:16:48 GMT)
--------------------------------------------------

or, if the adverb is too much for you, "ended with the lapidary assertion:"

or

concluded pithily: "...."

Chambers: "pithy = ... sententious and masterful"

just might fit the bill here

Spanish term (edited): El diario financiero concluyó lapidario:

Or, simply:

memorably concluded...

The primary sense of "lapidario", and the reason that words described as such are worthy of being engraved on a tombstone, is that they are "memorable". The four previous answers to not properly convey this attribute.

Suerte.

--------------------------------------------------
Note added at 1 hr (2007-10-08 22:46:39 GMT)
--------------------------------------------------

Or:

concluded with the ringing declaration...

Upon a brief check, it seems that a majority of the 36 Yahoo hits for the phrase have the sense of "memorable", as well as a connotation of "incisive"/"cutting"/"having strong impact". I think my second alternative properly conveys both of these elements. In any case, one would never see the phrase "ended with the harsh criticism" in a professionally produced newspaper in the English language.

http://www.babylon.com/definition/lapidario/English

but only if it fits :D

Concluir de una forma lapidaria es una manera de decir que es las razones a las que se llegaron no pueden ser refutadas-

the idea is that it is not flowery but brief and to the point - a bit of a throwaway line