- journal_title：Journal of Paleontology
- Contributor：Andrej Ernst ; Andreas May
- Publisher：Paleontological Society
- Date：2012-
- Format：text/html
- Language：en
- Identifier：10.1666/10-155.1
- journal_abbrev：Journal of Paleontology
- issn：0022-3360
- volume：86
- issue：1
- firstpage：60
- section：ARTICLES
A bryozoan fauna containing 11 species is described from the Lower Devonian (middle Lochkovian) of Arroyo del Agua, Sierra de Guadarrama, Guadalajara, Spain. One genus containing one species is new: rhabdomesine cryptostome <span class="named-content genus-species" id="named-content-1">Fehlerpora insolitaspan> n. gen. n. sp. Six additional new species are described: three cystoporates: <span class="named-content genus-species" id="named-content-2">Cystiramus gracilisspan> n. sp., <span class="named-content genus-species" id="named-content-3">Fistuliramus guadarramaensisspan> n. sp., and <span class="named-content genus-species" id="named-content-4">Fistuliphragma tenuisspan> n. sp.; and three trepostomes: <span class="named-content genus-species" id="named-content-5">Eridotrypella hispanicaspan> n. sp., <span class="named-content genus-species" id="named-content-6">Boardmanella dubiaspan> n. sp., and <span class="named-content genus-species" id="named-content-7">Leptotrypella inesaespan> n. sp. Four further trepostome species were identified: <span class="named-content genus-species" id="named-content-8">Leioclema incompositumspan> <span id="xref-ref-36-1" class="xref-bibr">Duncan, 1939span>, <span class="named-content genus-species" id="named-content-9">Minussina spinosoformisspan> <span id="xref-ref-5-1" class="xref-bibr">Astrova, 1964bspan>, <span class="named-content genus-species" id="named-content-10">Leptotrypella verisimilisspan> <span id="xref-ref-7-1" class="xref-bibr">Astrova, 1970span>, and <span class="named-content genus-species" id="named-content-11">Leptotrypella vulgataspan> <span id="xref-ref-5-2" class="xref-bibr">Astrova, 1964bspan>. The association is distributed over three different sedimentary environments. The high-energy one representing accumulation of debris from bryozoan-coral-pelmatozoan thickets contains eight species dominated by erect branched forms (six species). Tabulate corals are present, especially branches which most likely belong to <span class="named-content genus-species" id="named-content-12">Subcladoporaspan>? <span class="named-content genus-species" id="named-content-13">abnormisspan> (<span id="xref-ref-63-1" class="xref-bibr">Mironova, 1974span>). The environment with moderate to low wave influence contains only two bryozoan species, one erect branched and one encrusting. The third setting represents bryozoan thickets in situ situated in deeper water, the most tranquil environment characterized by four bryozoan species, dominated by three erect forms. Fenestrate bryozoans are absent from the two higher energy environments, whereas the bryozoan thickets in deeper water contain rare unidentified fragments of fenestrates. The bryozoan fauna shows distinct relations to the Lower Devonian (Lochkovian) of Ukraine, one species is known from the Middle Devonian of U.S.A.