Where: Lindi Region, Tanzania (9.7° S, 39.2° E: paleocoordinates 29.4° S, 16.7° E)
• coordinate estimated from map
When: Tangaru Formation, Middle Oxfordian to Middle Oxfordian (161.2 - 145.0 Ma)
Environment/lithology: terrestrial; lithified, calcareous siltstone and lithified, fine-grained, argillaceous sandstone
•approximately 110 m thick succession of three saurian
•beds with two marine intercalations, the Nerinea Bed
•and the Trigonia smeei Bed above the Lower and
•Middle Saurian Bed, respectively, and a third marine
•unit, the Trigonia schwarzi Bed, overlying the Upper
•Saurian Bed. The saurian beds have been described as
•mainly calcite-cemented siltstones and fine-grained
•sandstones, while the marine intercalations are predominantly
•calcite-cemented, bioclast-rich sandstones
•and silicious–sandy limestones (Heinrich et al. 2001;
•figure 1). Bussert and Aberhan (2004) interpreted
•conglomeratic layers in the Trigonia smeei Bed as
•storm deposits and in a few cases as tsunami deposits.
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydrochloric, hydroflouric, sieve
Primary reference: E. Schrank. 2010. Pollen and spores from the Tendaguru Beds, Upper Jurassic and Lower Cretaceous of southeast Tanzania: palynostratigraphical and paleoecological implications. Palynology 34(1):3-42 [C. Jaramillo/G. Doria/A. Cardenas ]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 142755: authorized by Carlos Jaramillo, entered by Gabriela Doria on 16.04.2013, edited by Patricio Santamarina
Creative Commons license: CC BY (attribution)
Taxonomic list
Lycopodiopsida | |
Densoisporites sp. Dettmann 1963 clubmoss | |
Podocarpidites cf. ellipticus, Callialasporites spp., Callialasporites dampiei, Callialasporites trilobatus, Callialasporites turbatus, Callialasporites microvelatus
Podocarpidites cf. ellipticus Cookson 1947 podocarp
Callialasporites spp. Sukh-Dev 1961 podocarp
Callialasporites dampiei podocarp
Callialasporites trilobatus Balme 1957 podocarp
Callialasporites turbatus Schulz 1967 podocarp
Callialasporites microvelatus Schulz 1966 podocarp | |
Pteridopsida | |
Deltoidospora sp. Miner 1935 | |
Polypodiopsida | |
Biretisporites spp. Delcourt et al. 1963 | |
Concavissimisporites | |
Concavissimisporites spp. Delcourt and Sprumont 1955 | |
Equisetopsida | |
Foraminisporis "sp. A" Krutzsch 1959 | |
Inaperturopollenites "sp. IV" Potonié 1966 | |
Classopollis spp. Pflug 1953
Araucariacites australis Cookson 1947 | |
Shanbeipollenites quadratus | |
Shanbeipollenites quadratus Schrank 2004 |