NEW CHONDRICHTHYES FROM THE MAZON CREEK FAUNA (PENNSYLVANIAN) OF ILLINOIS = NOUVEAUX CHONDRICHTYENS DE LA FAUNE DE MAZON CREEK (PENNSYLVANIEN) EN ILLINOISZANGERL R.1979; MAZON CREEK FOSSILS SYMPOSIUM/1978/ANN ARBOR MI; USA/GBR; NEW YORK: ACAD. PRESS/LONDON: ACAD. PRESS; DA. 1979; PP. 449-500; BIBL. 4 P.; ILL.Conference Paper

THE MORPHOLOGY AND DEVELOPMENTAL HISTORY OF THE SCALES OF THE PALEOZOIC SHARKS HOLMESELLA SP. AND ORODUS.ZANGERL R.1968; CURRENT.PROBLEMS.OF.LOWER.VERTEBRATE.PHYLOGENY.; 1968, P. 399 A 412Miscellaneous

BANDRINGA RAYI. A NEW CTENACANTHOID SHARK FROM THE PENNSYLVANIAN ESSEX FAUNA OF ILLINOIS.ZANGERL R.1969; FIELDIANA, GEOL.; USA; 1969(3), VOL. 12, NUM. 0010, P. 157 A 169Miscellaneous

SQUATINACTIS CAUDISPINATUS, A NEW ELASMOBRANCH FROM THE UPPER MISSISSIPIAN OF MONTANA.LUND R; ZANGERL R.1974; ANN. CARNEGIE MUS.; U.S.A.; 1974, VOL. 45, NUM. 0004, P. 43 A 55Serial Issue

A REVISION OF THE CHELONIAN GENUS BOTHREMYS (PLEURODIRA: PELOMEDUSIDAE).GAFFNEY ES; ZANGERL R.1968; FIELDIANA, GEOL.; USA; 1968(3), VOL. 16, NUM. 0007, P. 193 A 239Miscellaneous

NEW EVIDENCE ON THE NATURE OF THE JAW SUSPENSION IN PALAEOZOIC ANACANTHOUS SHARKS.ZANGERL R; WILLIAMS ME.1975; PALAEONTOLOGY; GBR; 1975, VOL. 18, NUM. 0002, P. 333 A 341Serial Issue

DIE PALAEOOEKOLOGISCHE BEDEUTUNG DER MAZON-CREEK- UND MECCA-FAUNEN IM ZENTRALEN NORDAMERIKA. = LA SIGNIFICATION PALEOECOLOGIQUE DES FAUNES DE MAZON-CREEK ET DE MECCA DANS LE CENTRE DE L'AMERIQUE DU NORDZANGERL R; RICHARDSON ES JR.1975; IN: 7. CONGR. INT. STRATIGR. GEOL. CARBONIFERE; C.R; KREFELD; 1971; KREFELD GEOL. LANDESAMT NORDRHEIN-WESTFALEN,1975, VOL. 4, P. 385 A 391Miscellaneous

Two new stethacanthid sharks (Stethacanthidae, Symmoriida) from the Pennsylvanian of Indiana, U. S. AZANGERL, R. R.Palaeontographica. Abteilung A, Paläozoologie, Stratigraphie. 1990, Vol 213, Num 1-6, pp 115-141, issn 0375-0442Article