Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe

A. Ősi, Sebastián Apesteguía, Michał Kowalewski

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Quantitative and qualitative analyses of isolated teeth and postcranial elements of non-avian theropod dinosaurs from the Upper Cretaceous (Santonian) Csehbánya Formation, Iharkút (western Hungary) indicate that these remains represent multiple dinosaur groups. Based on comparative and statistical analyses, 58 teeth and tooth fragments are identified as belonging to medium-sized basal tetanuran theropods that may have represented the top-predator of the terrestrial Iharkút ecosystem. These teeth are almost identical with the two '. Megalosaurus pannoniensis' teeth from the lower Campanian of Muthmannsdorf (Austria) and show a notable similarity to teeth of the Middle Jurassic M. bucklandii and the Lower Cretaceous '. M. dunkeri' from England. A single pedal ungual phalanx is interpreted as the oldest European occurrence of Late Cretaceous abelisaurids, as suggested by a ventral groove and bifurcated grooves laterally bordering a convex, triangular area. Small-bodied paravian theropods are found to be the best represented group in Iharkút, including teeth, caudal vertebrae, a metacarpal III, manual phalanges, and a fragmentary left tibia. A particularly notable paravian remain is a complete left scapulocoracoid possessing a unique pneumatic foramen ventral to the coracoid foramen. This specimen is assigned to Pneumatoraptor fodori n. g. et sp. Finally, numerous postcranial elements of Theropoda indet. were recovered, including a fragmentary sacrum that offers new insights into the sacral pneumaticity of theropods. The presence of these theropods in the Santonian Iharkút ecosystem provides the first evidence that during the early Late Cretaceous the Mediterranean archipelago was inhabited by both Gondwanan and Euramerican members of theropod dinosaurs. Consistent with data available for other archosaurian taxa, the close relationship of the basal tetanuran teeth with much older forms suggests that the Iharkút area may have functioned as a refugium in the early Late Cretaceous Mediterranean archipelago.

Original languageEnglish
Pages (from-to)304-320
Number of pages17
JournalCretaceous Research
Volume31
Issue number3
DOIs
Publication statusPublished - Jun 2010

Fingerprint

dinosaur
tooth
Cretaceous
Santonian
archipelago
Europe
refugium
Campanian
terrestrial ecosystem
Jurassic
predator
ecosystem

ASJC Scopus subject areas

  • Palaeontology

Cite this

Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe. / Ősi, A.; Apesteguía, Sebastián; Kowalewski, Michał.

In: Cretaceous Research, Vol. 31, No. 3, 06.2010, p. 304-320.

Research output: Contribution to journalArticle

Ősi, A. ; Apesteguía, Sebastián ; Kowalewski, Michał. / Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe. In: Cretaceous Research. 2010 ; Vol. 31, No. 3. pp. 304-320.
@article{1e68f568b6984f72bbda5997a7ee97d5,
title = "Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe",
abstract = "Quantitative and qualitative analyses of isolated teeth and postcranial elements of non-avian theropod dinosaurs from the Upper Cretaceous (Santonian) Csehb{\'a}nya Formation, Ihark{\'u}t (western Hungary) indicate that these remains represent multiple dinosaur groups. Based on comparative and statistical analyses, 58 teeth and tooth fragments are identified as belonging to medium-sized basal tetanuran theropods that may have represented the top-predator of the terrestrial Ihark{\'u}t ecosystem. These teeth are almost identical with the two '. Megalosaurus pannoniensis' teeth from the lower Campanian of Muthmannsdorf (Austria) and show a notable similarity to teeth of the Middle Jurassic M. bucklandii and the Lower Cretaceous '. M. dunkeri' from England. A single pedal ungual phalanx is interpreted as the oldest European occurrence of Late Cretaceous abelisaurids, as suggested by a ventral groove and bifurcated grooves laterally bordering a convex, triangular area. Small-bodied paravian theropods are found to be the best represented group in Ihark{\'u}t, including teeth, caudal vertebrae, a metacarpal III, manual phalanges, and a fragmentary left tibia. A particularly notable paravian remain is a complete left scapulocoracoid possessing a unique pneumatic foramen ventral to the coracoid foramen. This specimen is assigned to Pneumatoraptor fodori n. g. et sp. Finally, numerous postcranial elements of Theropoda indet. were recovered, including a fragmentary sacrum that offers new insights into the sacral pneumaticity of theropods. The presence of these theropods in the Santonian Ihark{\'u}t ecosystem provides the first evidence that during the early Late Cretaceous the Mediterranean archipelago was inhabited by both Gondwanan and Euramerican members of theropod dinosaurs. Consistent with data available for other archosaurian taxa, the close relationship of the basal tetanuran teeth with much older forms suggests that the Ihark{\'u}t area may have functioned as a refugium in the early Late Cretaceous Mediterranean archipelago.",
author = "A. Ősi and Sebasti{\'a}n Apestegu{\'i}a and Michał Kowalewski",
year = "2010",
month = "6",
doi = "10.1016/j.cretres.2010.01.001",
language = "English",
volume = "31",
pages = "304--320",
journal = "Cretaceous Research",
issn = "0195-6671",
publisher = "Academic Press Inc.",
number = "3",

}

TY - JOUR

T1 - Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe

AU - Ősi, A.

AU - Apesteguía, Sebastián

AU - Kowalewski, Michał

PY - 2010/6

Y1 - 2010/6

N2 - Quantitative and qualitative analyses of isolated teeth and postcranial elements of non-avian theropod dinosaurs from the Upper Cretaceous (Santonian) Csehbánya Formation, Iharkút (western Hungary) indicate that these remains represent multiple dinosaur groups. Based on comparative and statistical analyses, 58 teeth and tooth fragments are identified as belonging to medium-sized basal tetanuran theropods that may have represented the top-predator of the terrestrial Iharkút ecosystem. These teeth are almost identical with the two '. Megalosaurus pannoniensis' teeth from the lower Campanian of Muthmannsdorf (Austria) and show a notable similarity to teeth of the Middle Jurassic M. bucklandii and the Lower Cretaceous '. M. dunkeri' from England. A single pedal ungual phalanx is interpreted as the oldest European occurrence of Late Cretaceous abelisaurids, as suggested by a ventral groove and bifurcated grooves laterally bordering a convex, triangular area. Small-bodied paravian theropods are found to be the best represented group in Iharkút, including teeth, caudal vertebrae, a metacarpal III, manual phalanges, and a fragmentary left tibia. A particularly notable paravian remain is a complete left scapulocoracoid possessing a unique pneumatic foramen ventral to the coracoid foramen. This specimen is assigned to Pneumatoraptor fodori n. g. et sp. Finally, numerous postcranial elements of Theropoda indet. were recovered, including a fragmentary sacrum that offers new insights into the sacral pneumaticity of theropods. The presence of these theropods in the Santonian Iharkút ecosystem provides the first evidence that during the early Late Cretaceous the Mediterranean archipelago was inhabited by both Gondwanan and Euramerican members of theropod dinosaurs. Consistent with data available for other archosaurian taxa, the close relationship of the basal tetanuran teeth with much older forms suggests that the Iharkút area may have functioned as a refugium in the early Late Cretaceous Mediterranean archipelago.

AB - Quantitative and qualitative analyses of isolated teeth and postcranial elements of non-avian theropod dinosaurs from the Upper Cretaceous (Santonian) Csehbánya Formation, Iharkút (western Hungary) indicate that these remains represent multiple dinosaur groups. Based on comparative and statistical analyses, 58 teeth and tooth fragments are identified as belonging to medium-sized basal tetanuran theropods that may have represented the top-predator of the terrestrial Iharkút ecosystem. These teeth are almost identical with the two '. Megalosaurus pannoniensis' teeth from the lower Campanian of Muthmannsdorf (Austria) and show a notable similarity to teeth of the Middle Jurassic M. bucklandii and the Lower Cretaceous '. M. dunkeri' from England. A single pedal ungual phalanx is interpreted as the oldest European occurrence of Late Cretaceous abelisaurids, as suggested by a ventral groove and bifurcated grooves laterally bordering a convex, triangular area. Small-bodied paravian theropods are found to be the best represented group in Iharkút, including teeth, caudal vertebrae, a metacarpal III, manual phalanges, and a fragmentary left tibia. A particularly notable paravian remain is a complete left scapulocoracoid possessing a unique pneumatic foramen ventral to the coracoid foramen. This specimen is assigned to Pneumatoraptor fodori n. g. et sp. Finally, numerous postcranial elements of Theropoda indet. were recovered, including a fragmentary sacrum that offers new insights into the sacral pneumaticity of theropods. The presence of these theropods in the Santonian Iharkút ecosystem provides the first evidence that during the early Late Cretaceous the Mediterranean archipelago was inhabited by both Gondwanan and Euramerican members of theropod dinosaurs. Consistent with data available for other archosaurian taxa, the close relationship of the basal tetanuran teeth with much older forms suggests that the Iharkút area may have functioned as a refugium in the early Late Cretaceous Mediterranean archipelago.

UR - http://www.scopus.com/inward/record.url?scp=77951021973&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951021973&partnerID=8YFLogxK

U2 - 10.1016/j.cretres.2010.01.001

DO - 10.1016/j.cretres.2010.01.001

M3 - Article

AN - SCOPUS:77951021973

VL - 31

SP - 304

EP - 320

JO - Cretaceous Research

JF - Cretaceous Research

SN - 0195-6671

IS - 3

ER -