Rare Middle and Upper Devonian dalmanelloid (Orthida) of the Cantabrian Mountains, N Spain
نویسندگان
چکیده
منابع مشابه
Division Rhyniophyta - Upper Silurian to Middle Devonian
Among the oldest convincing fossils of early vascular land plants are those of the Division Rhyniophyta. The members of this division consist of: (1) simple axes with cuticle, stomates, epidermis, cortex and a terete (circular) centrarch xylem (xylem development occurs from the center of the stem to the periphery), without well-developed appendages or roots; (2) simple, isotomous branching syst...
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Conodonts of Khoshyeilagh Formation, the most complete section of Devonian rocks in the Alborz Mountains, northern Iran, has been studied, and subspecies of the genera Icriodus, Bipennatus, Polygnathus, Pelekysgnathus, Ancyrodella, Palmatolepis, Bispathodus, Scaphignathus, Clydagnathus, Gnathodus, Scaliognathus and Dollymae have been obtained from the studied section. The faunas indicate an Eif...
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Regeneration after experimental disturbances (burning, cutting and ploughing) was studied in a heathland dominated by Calluna vulgaris (L.) Hull located in NW Spain. Regeneration of C. vulgaris was better after burning and ploughing than after cutting. When cut, this species was replaced by another resprouting ericaceous species, Erica tetralix L. Calluna seedlings suffered high mortality in th...
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Terry Engelder, a leading authority on the recent Marcellus gas shale play, received his B.S. degree from Pennsylvania State University (1968), his M.S. degree from Yale University (1972), and his Ph.D. from Texas A&M University (1973). He is currently a professor of geosciences at Penn State and has previously served on the staff of the U.S. Geological Survey, Texaco, and LamontDoherty Earth O...
متن کاملmiddle devonian-early carboniferous conodont faunas from the khoshyeilagh formation, alborz mountains, north iran
conodonts of khoshyeilagh formation, the most complete section of devonian rocks in the alborz mountains, northern iran, has been studied, and subspecies of the genera icriodus, bipennatus, polygnathus, pelekysgnathus, ancyrodella, palmatolepis, bispathodus, scaphignathus, clydagnathus, gnathodus, scaliognathus and dollymae have been obtained from the studied section. the faunas indicate an eif...
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ژورنال
عنوان ژورنال: Spanish Journal of Palaeontology
سال: 2018
ISSN: 2255-0550
DOI: 10.7203/sjp.33.1.13242