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OSTROMIA

a small theropod, long known as 'the Haarlem Archaeopteryx, from the Late Jurassic of Germany.
Pronunciation: Oss-trom-ee-uh
Meaning: For John Ostrom
Author/s: Foth and Rauhut (2017)
Synonyms: See below
First Discovery: Bavaria, Germany
Discovery Chart Position: #974

Ostromia crassipes

Previously known as "the Haarlem Archaeopteryx".
(Ostrom's fat foot)Etymology
Ostromia honours the late John Ostrom, who identified the Haarlem specimen as a theropod in 1970. The species epithet, crassipes, is derived from the Latin "crassus" (fat, thick) and "pes" (foot).
Synonyms
Pterodactylus crassipes (Meyer, 1857)
Rhamphorhynchus crassipes (Meyer, 1857)
Scaphognathus crassipes (Wagner, 1861)
Archaeopteryx crassipes (Ostrom, 1970)
Discovery
The remains of Ostromia were discovered in the Painten Formation at Jachenhausen village, near Riedenburg, Bavaria, Germany, in 1855.
The holotype (TM 6928, 6929) is part and counterpart of a fragmentary skeleton, preserved on two slabs.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Jurassic
Stage: Tithonian
Age range: 151-145 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Carnivore
References
• Von Meyer H (1857) "Beiträge zur näheren Kenntnis fossiler Reptilien". Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefakten-Kunde, 1857: 532–543.
• Von Meyer H (1861) "Archaeopteryx litographica (Vogel-Feder) und Pterodactylus von Solenhofen". Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefakten-Kunde, 1861: 678-679.
• Ostrom JH (1970) "Archaeopteryx: notice of a “new” specimen". Science, 170: 537-538.
• Foth C and Rauhut OWM (2017) "Re-evaluation of the Haarlem Archaeopteryx and the radiation of maniraptoran theropod dinosaurs". BMC Evolutionary Biology, 17: 236
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To cite this page:
Atkinson, L. "OSTROMIA :: from DinoChecker's dinosaur archive".
›. Web access: 07th Mar 2026.
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