Match the following patterns (listed in Group I) with their appropriate Cephalopod sutures (listed in Group II). Arrow gives the direction of aperture.Group I Group II P. 
1. Ceratitic Q. 
2. Nautilitic R. 
3. Goniatitic S. 
4. Orthoceratitic
To solve this question, we need to match each pattern from Group I with the appropriate Cephalopod suture type from Group II. The question is related to recognizing the characteristic suture patterns found in the shells of cephalopods.
- Nautilitic (Group II: 2): The Nautilitic suture is simple and smooth, resembling a straight line. It corresponds to pattern P.
- Goniatitic (Group II: 3): The Goniatitic suture has a characteristic zigzag pattern, which matches with pattern Q.
- Orthoceratitic (Group II: 4): The Orthoceratitic suture is essentially a straight line with no complex lobes, fitting pattern R.
- Ceratitic (Group II: 1): Ceratitic sutures have serrated edges and look more crenulated, which is represented by pattern S.
Thus, the correct matching is:
- P-2: Nautilitic
- Q-3: Goniatitic
- R-4: Orthoceratitic
- S-1: Ceratitic
Therefore, the correct answer is: P-2; Q-3; R-4; S-1
Important Questions from Paleobiology (Taxonomy, Morphology of Invertebrates)
Based on the three statements given below, choose the CORRECT option.
Statement I: Echinoids have water vascular system.
Statement II: Delthyrium and pedicle foramen are found in the brachial valve of brachiopods.
Statement III: Cardinal teeth, adductor muscles and chondrophore are found in bivalves.- Match the following invertebrate genera in Group I with their corresponding Class/Phylum in Group II:
Group I Group II P. Mytilus 1. Brachiopoda Q. Planorbis 2. Cephalopoda R. Productus 3. Gastropoda S. Acanthoceras 4. Pelecypoda Which of the following statements regarding marine organisms is/are NOT true?
- Match the features (Group I) with the corresponding invertebrate genera (Group II).
Group I Group II P. Cardinal Fossula 1. Calymene Q. Chrondrophore 2. Rhynchonella R. Lophophore 3. Zaphrentis S. Glabella 4. Mya - Given below are pairs of "living fossils". Which one of the following is a brachiopod-mollusc pair?
