Other / Unknown · La Plata, Buenos Aires · 1922
ARG-1922ID case-ccdb34bcf6Added to map Oct 8, 2026
- Creature
- Other / Unknown
- When
- Dec 1922to the month
- Where
- La Plata, Buenos Airesto town level
- Reports
- 4 documents1 independent
The account
Witness reports that Prof. Riggs described a dinosaur with line-root thigh bones unearthed by explorers of the La Plata Museum as having a body eighteen or twenty feet high.
Trace the source trail → every document, in time order, and how they connect
We map claims, not creatures: this is what the sources say, not proof. How a case is built
Details
- Creature
- Other / Unknown
- Where
- La Plata, Partido de La Plata, Buenos Aires, Argentina
mapped to town level · from the report's own words - When
- Dec 1922
- Account
- Not first-hand (retold or reported by someone else)
- Backed by
- 1 independent source (4 documents; copies and reprints are not confirmations)
- Added to map
- Oct 8, 2026
- Case id
- case-ccdb34bcf6
Place lookups use data © OpenStreetMap contributors (ODbL), via Nominatim. All credits
Source trail (2)
Down the rabbit hole → 4 documents, and how they connect
Every link goes to where we found the account. The earliest we found is marked; it is the earliest found, not necessarily the original.
- Image 32 of Evening star (Washington, D.C.), December 22, 1922
Newspaper · 1922-12-22
Earliest found, not necessarily the original. - Image 7 of Casper daily tribune (Casper, Wyo.), December 22, 1922
Newspaper · 1922-12-22
Further reading
- The Jersey Devil, James F. McCloy and Ray Miller Jr. (1976)
The New Jersey Pine Barrens legend and its 1909 flap.
Borrow on Internet Archive - Phantom of the Pines: More Tales of the Jersey Devil, James F. McCloy and Ray Miller Jr. (1998)
Borrow on Internet Archive - On the Track of Unknown Animals, Bernard Heuvelmans (1959)
The founding work of cryptozoology.
Borrow on Internet Archive - Cryptozoology A to Z, Loren Coleman and Jerome Clark (1999)
Encyclopedia of reported creatures.
Borrow on Internet Archive
Books we have not reproduced: borrow them free at archive.org. Listing a book is not an endorsement of its claims.